The Network Ip Address Scheme

The Network Ip Address Scheme
UMUC's new building in Adelphi, MD will have to provide networking connectivity to students,
professors, and staff. In order to begin the process of planning the new network, we will begin by
planning the network IP addressing scheme. It is very important that the network IP addressing
scheme be clearly defined in order for IT administrators to locate computers promptly. Also, in order
to make it easier for the administrators, DHCP (Dynamic Host Configuration Protocol) will be used
to assign IP addresses. The organization of the subnet layout will assist the IT administrators as well
as making effective use of IP addresses.
In order to differentiate between students, staff, and instructors, we will place them on different
subnets. Also, the instructors subnet will begin with a "1" in the third octet, the staff subnet will
begin with a "3", and the students subnet will begin with a "4" or "5" in the third octet of the IP
addresses. Lastly, the second digit of the third octet will assign the floor for each subnet. An even
number in the second digit will mean that the computer or device on the subnet is located on the first
floor and an odd number means that it is located on the second floor. Network IP Addresses
First Floor
Subnet mask: 255. 255. 240. 0
Lecture Instructors
Network address: 10. 110. 16. 0
Subnet and range: 10. 110. 16. 2 – 10. 110. 16. 6
Staff (Library)
Network address: 10. 110. 32. 0
Subnet and range: 10. 110. 32. 2 – 10. 110. 32. 6
Admissions Staff
Subnet
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Application Of Linux And Linux
Topic 1 questions: Summary for topic 1:
This topic gives the introduction to Windows and Linux. It explains about Virtualization. Linux is
used on virtual machine which actually doesn't exist. Virtualization is creation of virtual version
rather than the actual one, such as storage system, network server or virtual operating system. It also
defines the host OS and Guest OS. On which the virtualization software runs is Host OS and the one
we want to play with is the Guest OS. The host operating system is the primary or actual operating
installed on the computer 's hard drive. The guest OS is the secondary OS installed under the host
for the purpose of partitioning the disk. The guest operating system is either a part of partitioned ...
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for example 01. 02 . 03 . 04 The format of IPv6 is y : y : y : y : y : y : y : y : y : , where 'y ' is
considered as segment seperated by colons ' : '. It must contain eight segments. however a short form
of IPv6 can be written using specific notations. for example 2014 : bd8 : 1232 : 0000 : 0000 : 0001 :
C0A8 : 1020 can be written as 2014 : bd8 : 1232 : : 1 : :C0A8 : 1232 ; where : : is considered as
0000. These IP address is nothing but he exact address of the computer just like a phone number.
Consider a phone number like +61 3 53 232323 this shows where this number belong to like +61 3
53 means /Australia/Victoria/Ballarat and 232323 says to which person exactly it belongs to. Similar
is the IP address.
IPv4 address uses 4 bytes first shows the network shows where in whole world and the last two
bytes shows where exactly. Similarly in IPv6 of 16 bytes firts 8 bytes are netwrok and last 8 are
nodes.
IP IPv4 address have three classes in it Class A : few big networks
1 byte network and 3 byte node
Class B: Medium sized networks 2 bytes are network and 2 bytes are nodes
Class C: A lot of small networks
3 bytes networks and only 1 byte node.
Task 1.2
Using pen and paper complete the following table. Once completed you may use a calculator
(Windows calc for instance) to check that your answers are correct. Note – In the theory test and
exam you will not be permitted to use a calculator.
Decimal Binary Octal

Telephone Channels Have A Signal-To-Noise Ratio Analysis
Lienphuong Nguyen
Professor: Laura Ingraham
Dec 6, 2014
Assignment 2 (Chap 6, Thought Question #2)
Telephone channels have a band–width of about 3.1kHz
Television Channel 's signal–to–noise ratio is 1000
The signal strength is 1000 times larger than the noise strengths.
Telephone modems operate at about 30kbps.
C= B[log2 (1 + S/N)]
a)
B 3.1 (kHz) S/N 1000 log2 (1 + S/N) 9.97 C 30.90 (kbps)
b)
B 3.1 (kHz) S/N 10000 log2 (1 + S/N) 13.29 C 41.19 (kbps)
c)
B 4 (kHz) S/N 1000 log2 (1 + S/N) 9.97 C 39.87 (kbps) d) We can increase the Maximum possible
speed by increasing Signal–to–noise ratio or increasing channel's bandwidth. However, increasing
the channel's band–width is more efficient in ... Show more content on Helpwriting.net ...
Finally "Rogue Access Points" are the access points which are set up by a department or an
individual for some reasons. These Rogue access points are unsecured, so the "drive–by–hacker"
can have an entry points to the network. This is really dangerous because only one Rogue access
point can make the network in threat of hacker although you protect all of your official access point
very well.
Although there are many threat of WLAN, you still can reduce those threats by applying some
technology in your network. For example, you can use a Core Security Standard. It provides
protection, which are confidentiality, authentication and message integrity, between the wireless
access point and the wireless host. Furthermore, you also can use Wired equivalent privacy (WEP)
security. In WEP, everyone shares the same access point, which requires the same key, and WEP's
key is not automated mechanism for changing. On the other hand, Wireless Protected Access (WPA)
is also an option for you. WPA is developed by using the concept of Core security standard, so it
could be used on older wireless access points and it is stronger than WEP. Finally, 802.11i is another
solution for your concerns about the network security. 802.11i is considered as WAP2, and it uses
extremely strong AES–CCMP encryption, which has 129–bits keys and a key management method
for automatically changing keys. That's all about the

A Guide to Computer Networks
Network+ Guide to Networks, 4th Edition
Solutions 4 – 1
Chapter 4 Solutions
Review Questions
1. What type of information must a protocol suite supply to be routable? b. Network layer address 2.
Which protocol suite grew popular in part because software developers have always been able to
modify it freely? a. TCP/IP 3. What field in an IP datagram can be used to indicate that a packet
should be routed before any other packets? b. the Differentiated Services field 4. What happens to
an IP datagram when its TTL reaches 1? c. It is discarded by the connectivity device. 5. What would
be the effect on your overtaxed network if you reprogrammed all client and server Application layer
protocols to use UDP rather than TCP? c. Due to UDP's ... Show more content on Helpwriting.net ...
What is she attempting to do? c. open a Web page that's on her own computer 23. Which IPX/SPX
core protocol provides data reliability services? b. SPX 24. Why is NetBEUI unsuitable for Internet
connections? a. It's not routable. 25. Which of the following protocols will assist in determining
whether packets reached their destinations? b. ICMP
Hands–On Projects
Project 4–1 In this project, students learn how to view and modify TCP/IP properties on a Windows
XP workstation. Steps 1 – 3: Students should obtain the results of a simple ipconfig command issued
from a C: prompt. Steps 4 – 5: Students observe the output of an ipconfig /all command. Steps 6 – 8:
Students learn how to release and renew a DHCP–assigned address. Project 4–2 In this project,
students learn how to modify the TCP/IP configuration of a workstation running Windows XP using
the operating system interface. Steps 1 – 4: Students access the TCP/IP properties for a LAN
interface. Steps 5 – 8: Students modify the configuration by entering a static IP address and default
gateway. Step 9: Students observe how their changes affected the output of the ipconfig /all
command. Steps 10 – 11: Students access the LAN interface's TCP/IP configuration once more, this
time to restore the default values. Project 4–3 In this project students experiment with the ping
command. Note that the exercise can be conducted on either a Windows XP or UNIX–type of
system. Steps 1 – 3: Students run a simple loopback

CMIT 350 Subnetting ProjectThis project Essay
XUMUC Subnet Analysis Student Name Table of Contents Executive Summary 3 Network
Structure Resolution & Details 4 WAN Transport Capacity & Details 4 Excess Administrative
Overhead Resolution & Details 4 Overly Complex Routing Table Resolution & Details 5
Conclusion 5 Appendix A: IP Addressing Table 6 Appendix B: Network Diagram 7 References 8
Executive Summary With an expectation of significant growth not only in their organizational size
but also the in the number of premises that will be utilized alongside the larger organization,
XUMUC needs to ensure that the network and infrastructure foundations allow for such growth and
expansion opportunities while ensuring at the same time that several already ... Show more content
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In line with standard procedures, Static IP addresses will be retained for servers and networked
equipment as this allows for an easier collation and management of such devices at each site. Overly
Complex Routing Table Resolution & Details With the network performance issues being addressed
through a restructuring and the implementation of specific VLANs the routers themselves can be
optimized by the removal of the current, singular routing table which has grown so complex with a
Virtual Routing & Forwarding (VRF) instance which permits several routing tables to exist at any
one time, all of which can be updated with network and boundary information and therefore remove
the current performance issue on router CPU utilization as well as providing a further element of a
scalable network. Conclusion Despite there being several issues to be resolved alongside the
planned expansion and growth of the XUMUC network, the benefits of such changes will be seen
immediately by all networked users through the removal of bandwidth and performance issues.
Furthermore, XUMUC will at last be in possession of an Enterprise grade network which can assist
with their strategic business objectives and requirements. Appendix A: IP Addressing Table Location
Number of IP Addresses Required Address Block Assigned Number of IP Addresses Available San

Iphone Xp : A New Research And Development Group Essay
Introduction My boss asked me to come up with a proposal to migrate Windows XP machines to
Linux. The company Linx LLC has a new research and development group – LSDG. All systems in
LSDG will be running Linux and will access and share resources with Linx LLC. The company has
around 500 client operating system desktop/laptops that runs Windows 7 and Windows XP. LSDG
needs to decide whether they're going to keep using both Windows XP and Windows 7 on their
desktops and laptops. LSDG must consider the following: costs, longevity of the machines, security,
and support. If LSDG decides to keep using Windows XP as their operating system, the company
will end up spending more to maintain and configure those machines. I would propose for Linx LLC
to have all their machines running Windows XP to update to Red Hate Enterprise Linux Operating
System. The last time for Windows XP support was back in 2014. "After 12 years, support for
Windows XP ended April 8, 2014. There will be no more security updates or technical support for
the Windows XP operating system." ("Support for Windows," n.d.) Running only Windows 7 variant
on some the machines makes it easier to have updates and especially security patches as well as
technical support when needed. Running Windows XP is a major security risk because like I said
Windows already stopped supplying patches and updates for this variant. As I suggested, Red Hat
Enterprise Linux Operating System will be the best choice to be used by LSDG. The

Cisco Network Proposal Part 3
CISCO Network Proposal
Part 3
Prepared for:
University of Maryland University College
Prepared by:
Mbuatoh Alot
Professor:
Salari Reza
Table of Contents
I. Sacramento Site Configuration
a. Implementation of VLAN and Port Security
b. Implementation of Routing on a Stick ROS
c. Implementation of DHCP
II. Los Angeles Site Configuration
a. Remote IOS Storage
b. Remote Management of Switch
c. ACL Implementation
d. Network Time Protocol
III. xACME WAN confguration
a. WAN implementation and Device Authentication
b. WAN topology Improvement
IV. Bibliography
I. Sacramento Site Configuration
a. Implementation of VLAN and Port Security
The three main switches at this site do not have VLAN databases making it difficult for switches to
store VLAN data, ID and name. Therefore, there will be a configuration of VLAN database. Also,
any students can bring their device and connect to one of the switch ports on the switches and get
access to the network to prevent that, port security will be implemented on the switches.
i. Configuring the VLAN on switch2 in database mode SacramentoSw2# vlan database Vlan 10
Name Faculty Exit

Vlan database Vlan 20 Name Administrative Exit
Vlan database
Vlan 30
Name Instructional
Exit
Vlan database
Vlan 40
Name Server
Exit
ii. Configuring Port Security
The port will be in access mode because the four VLANs are all on SacramentoSw2 and does not
span to SacramentoSw1 and SacramentoSw3. The commands below show the configuration of
access mode and port security on the switch ports to allow only two MAC addresses per port and
shutdowns for violations. All unused ports will be disabled for security purposes.
SacramentoSw1# Int g0/1
Switchport mode access
Switchport port–security
Switchport port–security maximum 2
Switchport port–security violation shutdown
Switchport port–security mac–address sticky
Int range g0/2 – 24 shutdown Int range g1/1 – 24 shutdown Int range g2/1 – 24 shutdown int range
g3/1 – 24 shutdown SacramentoSw2#
Int range g0/1 – 2
Switchport mode access
Switchport port–security maximum 2
Switchport port–security violation shutdown

Dhcp, Dynamic Host Configuration Protocol ( Dhcp )
DHCP Dynamic Host Configuration Protocol (DHCP), allows a computer to join a network without
a statically assigned Internet Protocol (IP) address (Mitchell, n.d., para 1). With DHCP a device can
be assigned a unique IP address, as it joins the network (Mitchell, n.d., para 1). DHCP is done on a
server, and parameters are set on the pool of IP addresses that can be assigned (Mitchell, n.d., para
4). In Server 2012 there are options to allow for fault–tolerance for DHCP. The three options
available including, a failover cluster, setting up a split–scope DHCP, and a DHCP failover (De
Clercq, 2014). It is recommended that Kris Corporation uses fault–tolerance for DHCP. The
recommended method of fault–tolerance is DHCP failover, which is new in Server 2012. This
option can replicate a complete DHCP scope to another DHCP server (De Clercq, 2014). When
configuring there is an option to use a hot standby or to do load sharing (De Clercq, 2014). Hot
standby uses one server as the active DHCP server, the second server is only used if the first DHCP
server is not available (De Clercq, 2014). Load sharing uses both DHCP server at the same time, and
the request are shared between the two servers (De Clercq, 2014). Load sharing is the default option,
and the recommended option for Kris Corporation. Kris Corporation is interested in tracking IP
addresses of all of the devices on the network. This can be done using IP address Management
(IPAM) in Server 2012 ("What is

Iphone Xp : A New Research And Development Group Essay
My boss asked me to come up with a proposal to migrate Windows XP machines to Linux. The
company Linx LLC has a new research and development group – LSDG. All systems in LSDG will
be running Linux and will access and share resources with Linx LLC. The company has around 500
client operating system desktop/laptops that runs Windows 7 and Windows XP. LSDG needs to
decide whether they're going to keep using both Windows XP and Windows 7 on their desktops and
laptops. LSDG must consider the following: costs, longevity of the machines, security, and support.
If LSDG decides to keep using Windows XP as their operating system, the company will end up
spending more to maintain and configure those machines. I would propose for Linx LLC to have all
their machines running Windows XP to update to Red Hate Enterprise Linux Operating System. The
last time for Windows XP support was back in 2014. "After 12 years, support for Windows XP
ended April 8, 2014. There will be no more security updates or technical support for the Windows
XP operating system." ("Support for Windows," n.d.) Running only Windows 7 variant on some the
machines makes it easier to have updates and especially security patches as well as technical support
when needed. Running Windows XP is a major security risk because like I said Windows already
stopped supplying patches and updates for this variant. As I suggested, Red Hat Enterprise Linux
Operating System will be the best choice to be used by LSDG. The machines

Cisco Unified Communications Manager
Cisco Unified Communications Manager
Introduction
Cisco Unified Communications Manager (formerly Cisco Unified CallManager) serves as the
software–based call–processing component of the Cisco Unified Communications family of
products. A wide range of Cisco Media Convergence Servers provides high–availability server
platforms for Cisco Unified Communications Manager call processing, services, and applications.
The Cisco Unified Communications Manager system extends enterprise telephony features and
functions to packet telephony network devices such as IP phones, media processing devices, voice–
over–IP (VoIP) gateways, and multimedia applications. Additional data, voice, and video services,
such as unified messaging, multimedia ... Show more content on Helpwriting.net ...
Distribution of Cisco Unified Communications Manager and all Cisco Unified IP Phones, gateways,
and applications across an IP network provides a distributed, virtual telephony network. This
architecture improves system availability and scalability. Call admission control ensures that voice
quality of service (QoS) is maintained across constricted WAN link and automatically diverts calls
to alternate public switched telephone network (PSTN) routes when WAN bandwidth is not
available.
A web–browsable interface to the configuration database provides the capability for remote device
and system configuration. This interface also provides access to HTML–based online help for users
and administrators.
Cisco Unified Communications Manager, designed to work like an appliance, refers to the following
functions: * Cisco Unified Communications Manager servers can get preinstalled with software to
ease customer and partner deployment and automatically search for updates and notify
administrators when key security fixes and software upgrades are available for their system.This
process comprises Electronic Software Upgrade Notification. * You can upgrade Cisco Unified
Communications Manager servers while they continue to process calls, so upgrades take place with
minimal downtime. * Cisco Unified Communications Manager supports the Asian and Middle
Eastern markets by providing support for Unicode on higher resolution phone displays. *

Information Security Program Lan And Wan Policy
ASSOCIATED DOCUMENTS
Policy: Information Security Program–LAN and WAN Policy
Form: Server Build Form–located within a Footprints Project
ROLES
Each Administrator that is responsible for building servers must adhere to these guidelines.
Questions regarding the process should be directed to the Network Services Manager.
OVERVIEW
A Footprints Project, "IS Server Build" (FSB) has been developed to ensure a standard process for
building servers is in place. The FSB is a checklist of how the particular server was built and
contains the type of server being built, the steps to build the server, a list of software installed, etc.
 The Server Build form is located within a Footprints project.
 Changes made to the servers are tracked in the Footprints Change Management (FCM) system
As part of the hardening process, additional security settings may need to be implemented that are
unique to the type of server being built. The Microsoft Security Guide may be used for obtaining
any additional security settings for the specific server.
Server Hardening Procedures
Server / Network Settings
1. Configure Boot Order
a. Within the server BIOS, set proper boot order and disable all unnecessary boot options to prevent
booting from unauthorized devices such as CD, USB storage, DHCP, ISO images, etc.
2. Setup DHCP IP Address Reservation
a. Set server address by using DHCP MAC address reservation. Do not use static IPs unless
necessary. Ensure network

Network Design Essay
UMUC's new building in Adelphi, MD will have to provide networking connectivity to students,
professors, and staff. In order to begin the process of planning the new network, we will begin by
planning the network IP addressing scheme. It is very important that the network IP addressing
scheme be clearly defined in order for IT administrators to locate computers promptly. Also, in order
to make it easier for the administrators, DHCP (Dynamic Host Configuration Protocol) will be used
to assign IP addresses. The organization of the subnet layout will assist the IT administrators as well
as making effective use of IP addresses. In order to differentiate between students, staff, and
instructors, we will place them on different subnets. ... Show more content on Helpwriting.net ...
All of the computers connected to the switches will be using Cat6 Ethernet cables. The only wireless
access point will be located in the student lobby on the second floor. The wireless service will be
provided by a Cisco Aironet 3700 Series Access Point that is connected to the server in the Student
Computer Lab. The device supports the new IEEE 802.11ac standard which provides speed rates of
up to 1.3 Gbps. The device will be setup to use WPA2 (Wifi Protected Access) and AES (Advanced
Encryption Standards) for security purposes. In the main server on the first floor we will install a
Cisco 3925E Integrated Services Router. The router provides many security features such as zone
based firewall, IPS, VPN encryption, etc. Many of the features will assist in protecting the network
from intruders and/or attacks. The servers installed will be Lenovo ThinkServer TS440 running
Windows Server 2012 R2 OS. The hardware includes standard interfaces and devices such as HDD
interface SATA and DVD–R. Windows Server 2012 R2 maintains the same features of Windows
Server 2008 that will assist the administrator in managing the network in the office. In the new
building the administrator will configure and manage 802.1X Authenticated Wireless Access for the
wireless access point in the student lobby. Also, they

Tools For Installing Windows Server 2008 Essay
Describe the Windows Server installation and the steps to setup DNS, DHCP, and FTP server
packages
Installation of windows server is not complicated, is more or less the same as installation of
windows vista.
The system requirements for a windows server 2008 are as indicated:
1. Processor: 1GHZ for x86 and 1.4GHZ for x64 processors as minimum, with a recommended one
being 2GHZ an above
2. Memory: Not less than 512MB RAM, with the recommended one being 2GB and higher
3. Disk Space: Should be at least 10 GB, but 40GB or higher is the recommended one.
4. Drive: It needs a DVD–ROM drive
5. Display and peripherals: Minimum resolution of 800*600 monitor, keyboard, Mouse, or other
compatible pointing device.
The basic procedure for installing windows server 2008 is as follows:
1. Insert the appropriate Windows Server 2008 installation media into your DVD drive. A free copy
of the same can also be obtained from Microsoft's Windows 2008 Server Trial website
http://www.microsoft.com/windowsserver2008/en/us/trial–software.aspx
2. Reboot your PC
3. Set your parameters for installation language and other regional options, and then press next.
4. Press install now to begin the process of installation
5. When prompted to activate the product, enter the Product ID if you want to automatically activate
windows once it finishes installation. Click Next. You may optionally leave the box empty, and add
it later.
6. Select the Full version of the correct version of Windows you're prompted, and

Assignment 1 Nt13p 9. 1
9.1 DHCP SNOOPING
What Is DHCP?
Hosts communicate with each other through addressing in a network. At first devices used to be
assigned unique static IP addresses. But, this system could not be scaled up when mobile devices
became more common. Modifying each device's address, such as that of a mobile phone or laptop,
each time it moved from one location to another became very complex.
To resolve this issue, dynamic address configuration was developed, and soon became the standard
addressing system for most networks around the world. All kinds of networks, from coffee shops to
corporate networks, use the Dynamic Host Configuration Protocol (DHCP) to connect a multitude
of devices to the internal networks as well as the Internet. However, ... Show more content on
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When DHCP snooping is enabled, a database called the DHCP snooping table or binding table is
created. This database stores the lease information from the switching device. This includes the IP–
MAC address binding, the lease time for the IP address, the type of binding, VLAN name, and
interface for each host.
The entries in the binding table are updated when significant changes occur in the network. For
example, when a client sends a DHCPRELEASE message to release an IP address, the
corresponding entry in the table is deleted. The entry associated with a device is also deleted if the
timeout value or lease time of the IP address assigned by the DHCP server expires. However, if you
move a network device from one VLAN to another, the device acquires a new IP address. In this
case, the corresponding entry, including its VLAN ID, is updated in the table. DHCP Snooping
Process
Here's what happens when DHCP snooping is enabled on a switching device:
A network host requests for an IP address by sending a DHCPDISCOVER packet to the switching
device.
The switching device sends the packet to the DHCP server.
The server in turn offers the host an IP address by returning a DHCPOFFER packet to the switching
device.
The switching device confirms that the offer is from a trusted interface, and sends the packet to the
host.
The host then accepts the address through a DHCPREQUEST packet.
The switching device adds a placeholder entry for the

It Proposal For The Kris Coporation2
IT PROPOSAL FOR THE KRIS COPORATION2 Information Technology Proposal Active
Directory Migrating to 2012 AD Different companies or organizations have different reasons and
ways of migrating to Windows 2012 Active Directory. Some of the reasons as to why the company
needs to migrate to 2012 Ad include freedom of interface choice whereby there is a wide variety of
interface choice that can be accessed through 2012 AD (Taft, 2012). The other reasons as to why the
company needs 2012 AD include increase in the storage space for the company and ability to have
control over disasters and its recovery system (Ciccarelli, & Faulkner, 2006). The company will also
be able to improve on its Virtual Desktop Infrastructure. Furthermore, the ... Show more content on
Helpwriting.net ...
After that, the settings and the data of server 2008 are then moved to the Destination Server, that is,
for server IT PROPOSAL FOR THE KRIS COPORATION3 2012 AD (Ciccarelli, & Faulkner,
2006). The folder for redirection on server 2012 Essentials Destination Folder is then enabled after
which the old folder for redirection may then be deleted. The source serve is then demoted and
removed from the new server 2012 Essentials network, although this should be done after forcing
the Group policy update, then the removal (Hernandez, 2013). After the migration, the next step
would be for the company to map all the permitted computers to the user accounts within the
network of the company. The final step of migrating to Windows Server 2012 is to download and
then run the server essentials BPA. Multi–domain model Vs Single domain Kris Corporation
running a multiple–domain whereby the benefits of having multiple domain include being able to
reduce the stiff competition that the company faces from other similar companies in the industry
(Taft, 2012). Furthermore, multiple domains are beneficial in that they help the company to target
different audiences hence expand its customer base in the long run (Ciccarelli, & Faulkner, 2006). It
is also to be noted that multiple domains are beneficial to an organization due to the reason that
there is ease of access of the company's website

Dynamic Host Configuration Protocol
Re:Unit 4 – Discussion Board
William David Williams
Fundamentals of Networking IT204
Discussion Board 4
9/8/2017
Static IP address is an IP address that is permanent to a specific host for a certain amount of time.
This IP address is assigned by the ISP out of a specific designated block of IP addresses and
manually entered into the computer. While primarily IP addresses are sent to the host by the DHCP
now, certain people prefer static IP.
Static IP is also used for the URL or uniform resource locator to give a website a permanent
residence on the internet. This keeps the website from bouncing around from leased IP's that a
DHCP would give. This type of network would also be good for VPN's and remote access. To quote
Lifewire: (Fisher, 2017) "Because a static IP address never changes, other devices always know
exactly how to contact a device that uses one." The only issue I foresee with Static IP addresses,
would be security. With the IP being permanent the IP address could be potentially being hackable.
... Show more content on Helpwriting.net ...
A Scope is a range or block of IP addresses that are available to use within a network. According to
Microsoft: "Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that
automatically provides an Internet Protocol (IP) host with its IP address and other related
configuration information such as the subnet mask and default gateway." (What Is DHCP?,

Evaluation Of The Network Services
1. Goal
Going forward with lab 2, the focus was placed on core services seen on enterprise networks, what
they do to keep the network running efficiently, and how to centrally monitor them. Some of these
services (DNS and DHCP) were review from what was learned in the "Network Services" class, but
by taking the basic concepts and applying them to an already running network instead of creating a
new environment specifically to test them, students learned valuable lessons on how to integrate
important services into an already thriving network. At the end of lab 1, all virtual machines set up
were given a static IP address which could be marked down in the wiki and referenced by other
machines if needed, such as the Opsview software which needed to know the location of the other
machines for monitoring purposes. With DHCP and DNS now in place, the focus of how to locate
resources on the network was moved from logical IP addressing to that of domain names. DHCP is
now dynamically giving out any address within its given range (a pool from our subnet), and it
might not always be the same every time, meaning two things had to change. The first is
reservations on the ISC DHCP server so that the same address is given out to systems already in
place based on what their static addresses were previously, and the second is letting resolver
software on the virtual machine's query the new DNS server for the IP address of a VM, rather than
someone having to lookup what the address of the

Icinga 2 Essay
By default, the UFW firewall is disabled on a newly installed Ubuntu 16.04 server instance. You can
enable the UFW firewall using the following command: ufw enable Next, allow Apache port 80, 443
and 5665 using the following command: ufw allow 80 ufw allow 443 ufw allow 5665 ufw reload
Configuring Icinga2 Using Web Interface Icinga Web 2 is the web interface for Icinga 2 that can be
used to monitor your infrastructure for issues and check the health of your hosts and services.
Before accessing Icinga 2 web interface, you will need to create a setup token that authorizes us to
use the web setup tool. You can create this using the following command: icingacli setup token
create You should see the following output: The newly ... Show more content on Helpwriting.net ...
You should see the following page: Here, continue with the default values provided by Icinga2 and
click on the Next button, you should see the following page: Here, review all the configurations
made so far and click on the Finish button to complete the installation process. Once installation has
been successfully setup, you should see the following page: Now, click on the Login to icinga web 2
button, you should see the following page: Here, enter your admin account credentials which you
have created earlier and click on the Login button, you should see the Icinga web 2 dashboard as
below: Configuring Icinga2 Master Node for Remote Hosts Monitoring Icinga web 2 is now
configured, it's time to setup and make Icinga2 server node as master for monitoring. You can do
this by running the following command: During the setup process, you will be ask several questions,
answer all the questions as shown

Installation Of An Iso Image Dvd
The installation will be performed using an ISO image DVD that contains the SUSE installation.
The installation process will configure language, keyboard, license, partitioning, time settings, and
desktop selection. A graphical interface will be used for end users in order to provide an easier
transition from Windows to SUSE. Command line interface configurations will be selected for
servers and administrative systems in order to provide better performance (opensSUSE). Users will
logon to the systems using the KDE desktop environment. The KDE environment will provide a
familiar look for users migrating from Windows systems. KDE replicates most preferred functions
used in Windows (Beginning SUSE Linux, 2006). User's logon to ... Show more content on
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During account and group migrations, all accounts will be reviewed to ensure access only to users
that are still within the organization. This will be an opportunity to HACKD, LLC to remove old and
expired accounts from the infrastructure. Password age and expiration will be configured within the
/etc/shadow file (User and Group Overview LabSim, 2015). The IP Address configuration
implemented will be a mixture of Static and Dynamic IPs. Static addresses will be assigned to
servers, network devices and other peripherals such as printers. Desktops and laptops will be
configured to use dynamic IP addressing through a DHCP lease that will last 12 hours. In order to
manage dynamic host configuration protocol (DHCP) requests a DHCP virtual server will be
configured. This server will have appropriate services enabled including "dhcpd". Configuration
changes will be saved at the dhcp.conf file. Static IP addresses will be configured in the
/etc/sysconfig/network–scripts file. DHCP lease settings are defined within the /etc/dhcpd.conf file.
The system domain name service (DNS) will be handled by a virtual DNS server. Desktop and
laptops will have an entry indicating the DNS server within /etc/resolv.conf. Systems will be
configured to use the domain name service with the /etc/hosts file as a backup. For name resolution
Linux can use a range entry located in the /etc/nsswitch.conf file. The file is

Sharing Data Across Your Home Network
Sharing data across your home network is usually a chore for many. Setting up movies, music, and
photos to be streamed from a central network location can be impossible without the right technical
chops. Even if you possess the technical skills, it can easily consume days of your life. Then, once
everything is set up you will find yourself constantly tinkering with the network any time you want
to get data or media to a new device. Thankfully, Western Digital has made this task extremely
simple by offering an affordable Network Attached Storage solution that includes a media server
called WD My Cloud. An Amazing Home NAS Network Attached Storage, or NAS, is essentially a
file server that hooks directly to your network. It 's hardware ... Show more content on
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I recently just purchased a 6TB WD My Cloud Mirror for Amazon and I have really enjoyed it. It 's
simplified backing up all our movies, music, and photos. Furthermore, it 's easy to turn this device
into a media server that can stream to any device on your network. Setting Up WD My Cloud
Setting up My Cloud is extremely simple. You simply power the NAS from your wall outlet, and
connect the NAS to your home router with an Ethernet cable. Once My Cloud is powered and
connected to the network, you simply download an install package on each device you want to use
and follow the easy setup guide. You can find the install package at WD My Cloud Learning Center.
Simply select "My Cloud" or "My Cloud Mirror" depending on the device you purchased and install
the software. If you need help with this there are some great video tutorials on the WD Support Site.
My Cloud is ready to go right out of the box. However, there are a few changes to the default
settings I recommend making. DLNA Server WD My Cloud is the perfect solution for streaming
media to all devices in your house. My Cloud comes with TwonkyMedia DLNA media server
already installed. This will allow streaming of music, movies, and TV shows to any DLNA or
iTunes compatible device. To turn on the WD My Cloud DLNA server go to "Settings" then "Media
in the configuration and turn on "Media

Security Issues With Dynamic Host Configuration Protocol
Abstract– The paper discusses security issues with Dynamic Host Configuration Protocol (DHCP)
and four different approaches proposed to secure DHCP. DHCP assigns network parameters to
existing and new clients. A misconfigured client is a big security breach as the traffic from and to
such client can be intercepted. The two main issues with DHCP are rogue server and Media Access
Control (MAC) address spoofing. The techniques discussed in the paper attempt at solving these
problems by encrypting the plain text send in DHCP, using digital signatures and key exchange
algorithms to maintain data integrity and security.
1. Introduction–
Internet grew rapidly over the last few decades. This has led to increase in the size of networks and
number of network devices. The network infrastructure today needs improvement and changes daily,
so adding new devices to network is very essential. The traditional way of assigning network
configuration to clients with the help of a network administrator is difficult. DHCP has now owned
the responsibility to perform this task. DHCP has its security issues because at the time of its
development internet security was not as important as dynamic allocation of the network parameters
were [2]. The major security concern in DHCP is interception of plaintext messages and illegitimate
client or server that compromises the network.
In section 4 of the paper, four different techniques to secure DHCP have been discussed. The first
approach makes use of

Tcp/Ip
A crash course in TCP/IP
At first glance, TCP/IP (Transmission Control Protocol/Internet Protocol) may seem baffling. Many
other protocols, such as NetBEUI and IPX/SPX, require no configuration. TCP/IP is different. Due
to the seemingly endless number of options that you can configure within TCP/IP, many people
become intimidated at first. In reality, however, TCP/IP isn 't very difficult, but you have to gain
some understanding of what you 're configuring. So, I 'm going to give you a crash course in
TCP/IP. Although I won 't be able to explore every feature in detail, I 'll cover the important points.
The IP address
The most basic element of TCP/IP is the IP address. The IP address is a number that 's unique to
each computer. If you ... Show more content on Helpwriting.net ...
DHCP allows you to set one or more servers on your network to act as a DHCP server. When a
client computer that 's set to use the DHCP option comes online, the DHCP server automatically
configures TCP/IP on this computer. Of course, you still have to configure the DHCP server, but
using DHCP saves you from all of the effort of configuring each client manually. It also keeps you
from accidentally using a particular IP address more than once. DHCP is also useful if you have a
limited number of IP addresses to work with; only the computers that are turned on at a given
moment will use IP addresses.
WINS
On Windows–based networks, each computer has a name. The WINS option can be configured to
contain the IP address of a Windows NT Server that 's running a WINS service. The WINS service
resolves computer names (NetBIOS names) to IP addresses. Thus, if you try to access a computer by
its name, your computer will go directly to the WINS database and search for the name and IP
address. It won 't have to query every computer on the network to determine the right IP address. As
you can imagine, using WINS really cuts down on network traffic.
DNS
DNS functions similarly to WINS, except that it manages domain names rather than computer
names. A domain name is the type of name that you use on the Internet. For example, Microsoft.com
is a domain name. When you point your browser to www.microsoft.com, your computer will query a
DNS server

It331 Documentation
CNS Capstone A COMPREHENSIVE NETWORK DEVELOPMENT PROJECT SUBMITTED TO
THE IT / COMPUTER NETWORKS SYSTEMS PROGRAM IN PARTIAL FULFILLMENT OF
THE REQUIREMENTS FOR THE ASSOCIATE DEGREE by
¬¬¬¬¬¬¬¬¬¬¬___________________________ ___________________________
___________________________ ___________________________ ADVISOR – ______________
ITT TECHNICAL INSTITUTE MURRAY, UTAH AUGUST, 2006 Table of Contents Introduction
to Infinet............................................................................ 3 TTI's Proposal
Overview........................................................................ 4 Executive
Summary........................................................................... 6 Assumptions and
Constraints................................................................ 7
Deliverables.................................................................................... 8 ... Show more content on
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Each campus will have a MDF room where data will be sent and forwarded as needed. The Houston
West campus will include an MDF as well as an IDF on the second floor to forward data to the
MDF. Each school has four labs that require 31 connections. There needs to be 3 runs of cabling to
the 30 computers on the Curriculum network and 1 run of cable to terminate at the instructor's
computer on the Administrator network. All computers on the Administration network will have
their ip addresses set statically and all computers on the Curriculum network will obtain their ip
addresses automatically from a DHCP server. DHCP Server Each campus will have a DHCP server
to hand out ip addresses to nodes on the Curriculum network. DNS and E–Mail DNS and e–mail
servers will be implemented in a hierarchical manner with all services located on the master server
at the main campus. All DNS and e–mail servers will be capable to communicate with each other in
the event that the master server becomes unavailable. Administrative Server TTI will need to have
an Administration server at each school site to interface with the DBMS at headquarters for student
tracking, grades, attendance, and other functions The Administration server must not be accessible
by any students or the

What Is Centralized SSL Scalability And Manageability
Centralized SSL Certificate Support: SSL Scalability and Manageability More businesses are going
online to store and share information aswell as host sensitive documents. Hosting and scale secure
websites are becoming more important. Prior to Windows 2012 there are a couple of changes when
it comes to hosting secure sites: SSL Scalability: in a multi–tenanted environment there are
limitations on how many sites can be hosted on Windows Server resulting in a low site–density SSL
Manageability: Certificated are stored locally on each Widows Server. This means they need to be
managed individually on each Windows Server. Renewing certificates must be done on each Server
individually On Windows Server 2012, the Centralized SSL Certificate ... Show more content on
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Developers and administrators usually need to run both ASP.net 3.5 and ASP.net 4.5 web
applications and also need the ability to manage both of them properly. IIS 8.0 supports managing
both ASP.NET 3.5 and APS.NET 4.5 applications both the graphical IIS Manager tool as well as IIS'
command–line tools. Both graphical and command line IIS management tools separate in a version
specific manner when reading or writing configuration information for ASP.NET applications.
(Microsoft, 2012) FTP Logon Attempt Restrictions A possible vulnerability for a server is a brute–
force attack through the FTP service. Accounts used for FTP are physical user accounts on the host
operating system, theoretically it is possible to guess the administrator username one you have
determined the FTP server type. Once a user account has been discovered, a malicious client can
connect to a server and attempt a brute–force attack on the account. IIS 7.5 the FTP service
introduced extensibility APIs that granted developers to create custom authentication providers,
which allows non–Windows accounts access to FTP. This reduces the surface attack area
significantly for the FTP service because these FTP accounts are not valid Windows accounts, and
so have no access to resources outside the FTP service. IIS 8.0 on Windows Server 2012, Microsoft
has added a built–in

Switch From Windows For Linux
Switch from WINDOWS to LINUX
Prepared for
CEO HACKD, LLC
Prepared by
Joseph Wangombe
Student
UNIVERSITY OF MARYLAND UNIVERSITY COLLEGE.
December 03, 2014
Switch from Windows to Linux
Introduction
The switch from Windows to Linux is something that many organizations contemplate doing but
many tread this route with much care. In recent years management has been concerned with the
rising cost of doing business; the security of their patents and customer information were their major
concerns. While most agree that these issues deserve attention, consensus dissolves on how to solve
the concern. This proposal is to elaborate to the process to switch from Windows to Linux. It has
long been thought by many people here in the ... Show more content on Helpwriting.net ...
Hardware and Installation Options
3. The way users will log in to systems
4. How systems will get their IP Address
5. How the DNS will be accessed by the LSDG systems
6. How files may be accessed by the LSDG
7. How to share files securely
8. How printing will be handled.
9. Data encryption.
Plan for Migration from Windows to Linux
The transition from Windows to Linux can be long and take months to achieve, the moving of data
setting the installations of the servers and clients is time consuming and need professionals to handle
it, however the transition is more than worth it. A good transition to take place would require
extensive planning of resources, time and expertise. The best approach to deal with migrate from
Windows to Linux is gradual, one department after another. The service of servers is the most

critical phase to start with. A typical office uses shared resources to maximize on the resource hence
it is critical to start with the services that are shared the most and change those first. Printing,
Storage and application servers are some of the critical areas that any organization's IT want to see
go as smooth as possible. Linux can be configured from installation to be a server or just a regular
desktop client. Once the servers have been installed in place then the clients that are going to be
pulling the resources from it can be installed and integrated gradually to avoid disruption of services
to the workers.
It is important to educate the

Description Of A Static Ip Address
A static IP address is an IP address that was manually configured for a device, verses one that was
assigned via a DHCP server. A static IP address is called static because it doesn 't change. This is the
exact opposite of a dynamic IP address, which does change. Static IP addresses are also sometimes
referred to as fixed IP addresses or dedicated IP addresses. A different technique to think about a
new static IP target is actually to think about such as an email target, or possibly a bodily property
target. These address tend not to actually adjust there're static also it tends to make getting in touch
with or perhaps discovering somebody super easy. In the same manner, a new static IP target is
advantageous when your number an internet site from home, have a very document server inside
your circle, are applying networked models, usually are owning a produce server, or perhaps if you
utilize a new out of the way accessibility program. Just because a static IP target never adjustments,
different devices constantly realize exactly how to contact a tool that uses one particular. For
example, declare people set up a new static IP target pertaining to one of many pcs at home
multilevel. In the event the computer has a unique target associated with it, it is possible to set up
your current router to be able to constantly forward a number of incoming asks for straight to that
computer. Definitely not having a static IP target using a new dynamic IP that may change would
likely be

Abc Accounting, Inc.
Introduction
ABC Accounting, Inc. is a quickly growing accounting firm with new networking needs. The
company has growth from five employees to 200 employees and in just a year that number is
expected to grow to 350. With the new growth come new offices and the need to have employees
travel with laptops. The purpose of this paper is to purpose a technical solution to ABC Accounting,
Inc. networking needs. This purposely will detail the Topology and networking devices needed, the
IP infrastructure and Security options needed to insure quality and security of all ABC Accounting,
Inc. data. The proposal will also include cost of the devices needed in order to show the budget
needed to produce results.
Topology
Setting up and connecting all ... Show more content on Helpwriting.net ...
1000 feet of Category 6 cabling can be purchased from Amazon for $54.99or 500 feet of Category 5
cabling can be purchased from Amazon for $31.99 (See references for link to site). It is difficult to
determine how much cabling is needed at this time to come put with a final estimate. I would also
recommend buying cables in different jacket colors to help differentiate between network devices if
possible. This will help to narrow down troubleshooting issues with in the office. If someone loses
connectivity you will be able to find the root of the issue much faster.
Network Devices
Server
You will need a server that will handle the 200 employees you have now with room to grow for the
350 you expect to have in the next year. The server will provide management of the system and act
as a Domain server and will set unique username and password to access the system. I recommend
the Lenovo ThinkServer RD650 at $5439.81.
18–core Intel Xeon Processor
Up to 768 GB DDR4 RAM
Up to 74 TB internal storage
Redundant hot–swap
550W/750W/1100W power supply
Intergrated Gb Ethernet Network Interface Card
3 x PCIe Gen3: LP x8, 4 x PCIe Gen3: FLFH x8, 1 x PCIe Gen3: HLFH x8 expansion slots
This server will also act as a centralized location to store files with the 74 TB of storage and has a
variety of RAID options that can be configured to ensure that there is no data loss. The server has an
18–core processor with up to 768 GB of RAM insuring high

The Dynamic Host Configuration Protocol (DHCP)
The Dynamic Host Configuration Protocol (or DHCP) is intended to make the life of the network
administrator easier by assigning IP addresses to the computers on the company's network. DHCP
not only automatically assigns IP addresses to the computers, but it also leases, reserves, and
excludes IP addresses to the computers. The process of installing and configuring DHCP is not
difficult, but you must be careful when you set the scope the scope if you want to avoid any
problems in the future. To successfully configure and install DHCP on the server, the following
steps must be completed.

The Relationship Between Tcp And Udp Start With How Data...
Question 1: A single device can host multiple services by having different port numbers in place in
the transport layer. These port numbers are dynamically generated by the device that is sending the
information so that a conversation can be initiated, having this allows for many conversations to
take place at the same time on each different port. When it comes to deciding how different sides
know what ports to use there are things called Well–known ports and these port numbers can be
used in for services and applications. There are also registered ports and these ports are assigned for
a specific process or service and are not changed. The other ports that are used are called dynamic
ports and these ports are used to first determine what ... Show more content on Helpwriting.net ...
UDP on the other hand receives packets in the order in which they arrive and not by the order they
were sent. UDP acknowledges that it will receive all packets and as long as all packets are received
the full data that is being sent will be intact and whole. This difference also works in line with TCP
authenticating everything that goes through it. While UDP does not have an authentication build to it
just takes the packets as they come if they are coming from a known sender that way no time is
wasted. That is why both methods are needed because somethings do not require the authentication
method while other need to go through it for security purposes. Question 3: Subnet Mask is
255.255.255.224, 199.88.1.0/27 first four: 199.88.1.32, 199.88.1.64, 199.88.1.96,
199.88.1.128––––––––––Subnet Mask is 255.255.255.240 199.88.1.0/28 first four: 199.88.1.16,
199.88.1.32, 199.88.1.48, 199.88.1.64 Question 4: Best effort delivery is described as when an IP
cannot manage or recover packets that have been lost or corrupted during the transport process. This
happens because packets do not carry information that can tell the sender that they arrived or if they
didn't arrive so its up to an application at the destination end to inform the sender whether or not a
whole set of data arrived. Question 6: Physical Addresses differ from Virtual addresses in which
they are actually

DNS Domain Research Paper
V.ZONING & SIGNATURES
All the domains , part of DNS system will possess several settings which are named as DNS
Records. For an organized structure of these records , Zone is assigned
At the point when another DNS server is added to the system and it is arranged as another optional
server for a current zone, it plays out a full introductory exchange of the zone to get and repeat a full
duplicate of resource records for the zone. Most prior DNS server usage utilize this same technique
for full exchange for a zone when the zone requires updating after changes made to the zone. For
DNS servers running Windows Server 2003 and Windows Server 2008, the DNS Server benefit
bolsters incremental zone exchange, a modified DNS zone exchange process ... Show more content
on Helpwriting.net ...
In the recent times, hackers or attackers, because of technological advances, are trying to mislead
the user by various attacks. As we discussed some of the attacks in the above mentioned "Type of
Attacks", now we shall look into a common process of DNS Hijacking where DNS Zoning along
with signatures and keys can be more helpful.
In the following figure , it shows the basic outline of how the domain name system acts and how
information is being exchanged in the normal conditions. Arrows indicate exchange between
systems in bi direction.
Figure 2: DNS working
When attackers enter into open WiFi or Public accessed networks, they bypass all the Proxy
configurations and steal the information from the main computer after making multiple harmful
queries and spoofing the DNS. By doing this, the whole DNS system can be cloned. After cloning or
replicating the DNS, attackers can try to create a malicious or harmful information into the user's
computer or host device.
Figure 3: Replicated DNS attacking the host.
When a user is trying to access a website, like www.cnexample2017bank.com to check the accounts,
the replicated DNS will give the phishing page or replicated page of original website into the Host
device. When the user enters his/her credentials, those credentials can be stolen and website fake
DNS returns an error message.. After reaching the replicated page, then the request is

Network Address Translation and Router
|CCNA4: Commands |
WAN Technologies
[pic]
Cisco Networking Academy Program CCNA 4: WAN Technologies v3.1.1
1 Module 1: Scaling IP Addresses 3
1.1 NAT and PAT 3 1.1.1 Configuring static NAT 3 1.1.2 Configuring dynamic NAT 3 1.1.3
Configuring NAT Overload (PAT) 4 1.1.4 Verifying NAT and PAT configuration 4 1.1.5
Troubleshooting NAT and PAT configuration 4
1.2 DHCP 5 1.2.1 Configuring DHCP Operation 5 1.2.2 Verifying DHCP Operation 5 1.2.3
Troubleshooting DHCP Configuration 5
2 Module 3: Point–to–Point Protocol (PPP) 6
2.1 Configuring HDLC Encapsulation 6
2.2 Troubleshooting a Serial ... Show more content on Helpwriting.net ...
By using the helper address feature, a router can be configured to accept a broadcast request for a
UDP service and then forward it as a unicast to a specific IP address.
Example: Router(config–if)#ip helper–address address
2 Verifying DHCP Operation
Router#show ip dhcp binding [address]
Router#show ip dhcp conflict [address]
Router#show ip dhcp database [url]
Router#show ip

Assignment 1 Essay
Bounmy Sinouanthavysouk
Course NT1330, Mr B.
01/11/13 Unit 2 Assignment.
Facilitation
Dear IT Admin:
I am working at a branch office and have been tasked with changing out the DHCP scope to match
the overall corporate IP address scheme. The main office assigned me and IP address range of
192.168.0.200 through 192.168.0.225. I changed the scope on Friday afternoon and came in on
Monday morning to discover that only some of the workstations had picked up the new leases from
the new DHCP scope. Any ideas as to what may be happening, what I might check or adjust?
Dear Junior Admin: After reading the problem you are having, I too have run into a similar situation
in the pass and from my experience this is the advice I can give ... Show more content on
Helpwriting.net ...
One of the branch offices is ver small (5 users) and has very slow network connectivity. Do I need a
DNS Server and if so, which type of zone should it host?
The second branch office is much larger (about 30 users) and has better network connectivity. Does
this office need a DNS Server and if so, what type of zone would you recommend?
Dear Junior Admin: Most often, you will install DNS servers on all domain controllers. If, however,
you have reason not to deploy DNS servers on every domain controller, you can follow these
guidelines to choose where to place your DNS servers. In general, place your DNS servers at a
location on your network that is centrally accessible to your clients. It is often most practical to use a
DNS server on each subnet. There are several questions to consider when you are deciding where a
DNS server is needed. For example, if you have a routed local area network and high–speed links
that are fairly reliable, you may be able to use one DNS server for a larger, multiple subnetted
network area. If you have a high number of client nodes on a single subnet design, you may want to
add more than one DNS server to the subnet to provide backup and failover if the preferred DNS
server stops responding. When you are determining the number of DNS servers that you need,
assess the effect of zone transfers and DNS query traffic on

Questions On Dynamic Host Configuration Protocol 5
Table of Contents
Introduction and Goals 3
Procedure 3
Domain Name System 3
Dynamic Host Configuration Protocol 5
Network Time Protocol 6
OpenLDAP 7
Security Considerations 7
Monitoring and Logging 8
Performance 9
Conclusion 9
Introduction and Goals
The goals of this lab were to install DNS, DHCP, NTP and OpenLDAP on a new RLES Red Had
Enterprise Linux server within the jps5374.corp domain. Both DHCP and DNS were services that I
have implemented before in System Administration I, so this section was mostly review. However,
NTP and OpenLDAP were services that I've never worked with, so this lab was my first
implementation. The overall idea for this lab was to install services and configure them with an
enterprise network in mind.
Procedure
Domain Name System
The first thing I did when setting up DNS was to install everything. Once I got everything installed,
it went right to the configuration files.
The first configuration file I worried about was named.conf. This file lets the named daemon know
where to find information about both forward and lookup zones.
Here is a screenshot of the named.conf file: Here is a screenshot of the forward lookup zone file:
This file is found at /var/named/forward.jps5374.corp. Here I am setting the name server at
serv.jps5374.corp, setting the serial number as the current date and making A records for all of the
clients that are on the network.
Here is a screenshot of the reverse lookup zone file:
This file is found at

Nt1330 Unit 3 Lab 1
Introductions and goals Lab Three repeats much of Lab Two by setting up the same core services,
DNS and DHCP, but adds Microsoft's Active Directory role to the server. The lab introduces the
student to administrating these services in a Graphical based, Windows environment. The Domain
Name System/Service offers the ability to translate IP addresses into easy to remember canonical
names. It is recursive and highly available. The Dynamic Host Control Protocol automatically
assigns IP addresses to hosts on a network as they request them. DHCP packets also include
information like DNS server addresses, domain names, and default gateways. Active Directory is
responsible for assigning and enforcing security policies for computers on a domain. The Active
Directory controller creates and organizes computers on ... Show more content on Helpwriting.net ...
Our monitoring solution of choice, PRTG, has widely available and granular plugins available to
monitor the system. This is due in part to Active Directory being such a commonly implemented
system. At the most basic level we'll want to make sure that the requisite Active Directory services
are running and functioning correctly. Deeper than that we'll have to go to purposeful plugins that
can monitor things like LDAP bind time, number of users, and performance metrics. DNS and
DHCP monitoring is very simple on Windows. Unlike its Unix–like counterparts, the core network
services on Windows were designed with a user in mind, and can extrapolate, interpolate, predict,
and interpret. Whether you do or do not have a monitoring system in place, the suite of services
Windows provides are able to update the administrator with data at–a–glance. Easy to read color
coding and sometimes cryptic error messages make administrating this network services much less
painful. Given their simple daemon based architecture, monitoring with PRTG, SolarWinds, Nagios,
or whatever is easy, breezy, and

The New Features Of Windows Server 2012
After reviewing the requirements of the GAI and taking into consideration the infrastructure that is
already in place I have created a proposal that should meet the requirements of the organization
needs. Some of the new features of Windows Server 2012 that I will be utilizing in order to ensure
the organization needs are met will be the Work Folders and Direct Access feature for the users that
will be utilizing the remote sites. The Hyper V, Storage Tiering and DHCP for fault tolerance, IP
availability which I will be going further in depth during the proposal. For the deployment of the
Servers in the organization I felt 3 physical servers at a minimum would be best in terms of ensuring
all the users have access to the same services. Two servers will act as a main server will be located
at the Los Angeles site while one will be located at the New York site the third server will act up as a
backup for the two in the event of one failing and will be located at the Los Angeles location. I will
be installing the Server 2012 Datacenter edition for flexibility and scalability the servers will not
have Server Core installed but will be set up for the desk top experience. Which include the GUI to
ensure that the incoming technicians will have ease of use when maneuvering around the services on
the servers. Also each server will mirror the other as far as roles and features so as not to cause
future conflicts. Considering the size of the organization right now which consist of

Case 10.1.3 Essay
2.10.1.5.2 RIP Timers RIP has four basic timers
1) Update Timer – indicates how regularly the router will send out a routing table update.
2) Invalid Timer – indicates how long a route will remain in a routing table before being marked as
invalid, if no new updates are heard about this route. The invalid timer will be reset if an update is
received for that fussy route before the timer expires. A route marked as invalid is not immediately
removed from the routing table. Instead, the route is marked with a metric of 16, indicating it is
unreachable, and placed in a hold–down state.
3) Hold–down Timer – indicates how long RIP will "suppress" a route that it has placed in a hold–
down state. RIP will not accept any new updates for routes ... Show more content on Helpwriting.net
...
The request asks that a router send all or part of its routing table. The response can be a spontaneous
regular routing update or a reply to a request. Responses contain routing table entries.
Version number– Specified the RIP version used.
Zero– This field is not actually used by RFC 1058 RIP it was added solely to provide backward
compatibility with varieties of RIP. Its name comes from its defaulted value, zero.
Address–family identifier (AFI) – Specifies the address family used. RIP is created to carry routing
information for a number of different protocols. Each entry has an address family identifier to
indicate the type of address being specified. The AFI for IP is 2.
Address–Specifies the IP address for the entry.
Metric– This Indicates how many internetwork hops or routers have been negotiated in the
excursion to the destination. This value is between 1 and 15 for a valid route, or 16 for an
unreachable route. 2.10.1.5.6 RIP packet format
Table 2.2 RIP packet format
2.10.1.6 Wireless routing protocol The Wireless Routing Protocol (WRP) is a table–based distance–
vector routing protocol. Each node in the network maintains a Distance table (DT), a Link–Cost
table, a Routing table and a Message Retransmission list. The DT contains the network observation
of the neighbours of a node. It contains a matrix where each element contains the distance and the
one

Unit 2.3.2 Vlsm Research Paper
2.3.2 VLSM (Variable Length Subnet Mask)
A Variable Length Subnet Mask (VLSM) is a means of allocating IP addressing resources to subnets
according to their individual need rather than some general network–wide rule.
VLSM allows an organization to use more than one subnet mask within the same network address
space. It is often referred to as 'subnetting a subnet', and can be used to maximize addressing
efficiency.
We have created various sub–networks from the mother network 192.168.1.0/24
2.3.3 Dynamic Host Control Protocol (DHCP)
Network administrators use two methods to assign IP addresses.
Static: Administratively assigned
Dynamic: Automatically assigned
Dynamic host configuration protocol (DHCP) is the heir to BOOTP.
Unlike ... Show more content on Helpwriting.net ...
It works on Layer 2 of the OSI model. VLAN trunks formed using DTP may utilize either IEEE
802.1Q or Cisco ISL trunking protocols
DTP Mode Description
Dynamic : desirable A switch port configured as DTP dynamic desirable mode will actively try to
convert the link to a trunk link using Dynamic Trunking Protocol (DTP). If the port connected to
other port is capable to form a trunk, a trunk link will be formed.
The interface which is configured as DTP dynamic desirable mode will generate DTP messages on
the interface. If the switch receive DTP messages from the other side switch, it will assume that
other side port is capable for handling tagged frames and a trunk link ill be formed between two
switches.
Dynamic : auto A switch port configured as DTP dynamic auto is capable to form trunk link if the
other side switch interface is configured to form a trunk interface and can negotiate with trunk using

Business Analysis : Barracuda Network
BARRACUDA NETWORKS specialize in the balancing of traffic across multiple ISP links to
ensure Internet continuity and availability, even during ISP outages. It balances both outbound and
inbound traffic intelligently, so users have Internet access whenever they need it. The company has
in place Application prioritization and granular quality–of–service (QoS) policies assure priority to
business–critical application traffic – and the applications remain available even when links fail.
This deploys quickly and transparently into existing networks without changes to configuration or
topology. Secure and affordable, the Barracuda Link Balancer streamlines bandwidth management
while providing maximum Internet access. Efficiency ... Show more content on Helpwriting.net ...
Link Any topic (writer 's choice)3 Failover and Failback Link availability and performance is
continuously monitored using multiple protocols and metrics like DNS, Ping, HTTP, and
performance. When link failure or saturation is detected, the Barracuda Link Balancer instantly
reroutes traffic through the available links. It automatically fails back when the ISP restores service.
During link failover/failback, the Barracuda Link Balancer maintains application traffic and VPN
priorities. Inbound Link Balancing Using DNS Inbound link balancing distributes incoming traffic
from Internet–facing services across multiple ISP links by using built–in Authoritative DNS
services. It assigns link–specific IP addresses to each domain and then balances DNS queries to that
domain across the available links. Failed links are removed from the DNS tables and are added back
only when they have been restored. Transparent Deployment Under the preferred transparent mode
of deployment, the Barracuda Link Balancer plugs into an existing network to perform link load
balancing transparently, without requiring any changes on network firewalls, routers, VPNs, or
hosts. Site–to–Site IPsec VPN For secure site–to–site connectivity, the Barracuda Link Balancer
comes with a built–in IPsec VPN gateway. In case of link failover and failback, VPNs fail over to
available links and maintain traffic priorities to ensure uptime for critical organizational services
across the WAN. MPLS links

Ipv6 And Ipv6 Address Resolution Protocol
Since there are so many IP addresses that need to be handled on the Internet, IPv4 and IPv6 need a
way to keep track and configure them. This is normally referred to as address resolution. This
includes translating network layer addresses into link layer addresses, having automatic assignments
of addresses, and routing data to the correct location on a specific network. IPv4 uses a protocol
called Address Resolution Protocol, or ARP, in order to translate IP addresses into MAC addresses.
A MAC address is the unique number given to the network interface card in each computing device.
The reason this needs to be done is because on many intranet networks, the internal communication
and delivery of data is based off of the MAC address rather than the IP address. The Dynamic Host
Control Protocol, or DHCP, handles the automatic configuration and assignment of IP addresses in
IPv4. DHCP is an internal protocol that takes the MAC addresses of the NICs on a network, and
automatically assigns IP addresses. It also keeps track of them so that two NICs don't acquire the
same IP address. Without DHCP every IP address would have to be entered manually by the system
administrator, which would be incredibly difficult considering how many devices can potentially
access a network. IPv6 uses similar methods to perform both of those functions, but there are still
important differences that exist to improve the way that IPv6 performs. Instead of ARP, IPv6 uses
the Neighbor Discovery Protocol

The Network Ip Address Scheme

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