Defense-in-Depth, an IA concept refers to multiple layers of securit.docx
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Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs: User domain - any user of our systems falls in this domain, whether inside or outside our organization Workstation domain - not just computers, but any device our users use LAN domain - each LAN and the devices that make a LAN work WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types .
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Description Defense-in-Depth, an IA concept refers to multip.docx
Description:
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
User domain - any user of our systems falls in this domain, whether inside or outside our organization
Workstation domain - not just computers, but any device our users use
LAN domain - each LAN and the devices that make a LAN work
WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Description Defense-in-Depth, an IA concept refers to multip.docx
Description:
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
User domain - any user of our systems falls in this domain, whether inside or outside our organization
Workstation domain - not just computers, but any device our users use
LAN domain - each LAN and the devices that make a LAN work
WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Defense-in-Depth, an IA concept refers to multiple layers of securit.docx
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
-User domain - any user of our systems falls in this domain, whether inside or outside our organization
-Workstation domain - not just computers, but any device our users use
-LAN domain - each LAN and the devices that make a LAN work
-WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
-LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
-Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
-System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Enterprise firewalls feature and benefits
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What are the Different Types of Firewall and its Architectures.pdf
What are the Different Types of Firewall and its Architectures.pdfIT AMC Support Dubai - Techno Edge Systems LLC
Firewalls can be used to separate network nodes from external traffic sources, internal traffic sources, or even specific applications. Firewalls are divided based on their general structure and method of operation. Techno Edge Systems LLC offers reliable Firewall solutions in Dubai to protect the entire network system and computers. For Any Queries Contact us: 971-54-4653108 Visit us: https://www.itamcsupport.ae/blog/what-are-the-different-types-of-firewall-and-its-architectures/Site to Site VPN Using TMG Firewall. University Final Presentation.
Final semester Presentation , About Virtual Private Network, Microsoft Forefront Thread Management Gateway, LAN Security, A campus network can easily span many buildings, bridges were used to connect the buildings together this broke up the collision domains, but the network was still one large broadcast domain. More and more users were attached to the hubs used in the network, here the performance problems in traditional campus networks included collisions, broadcasts and multicasts, and bandwidth. and soon the performance of the network was considered extremely slow. If a link or hub become down then there was no redundant link or backup hub so Redundancy was also extreme problem in traditional campus network.
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The document discusses security measures taken by the ICT directorate of Addis Ababa Science and Technology University. They use a FortiGate 1200D firewall to secure their internal network and servers from threats. They also use Kaspersky antivirus software, implement backup and fault tolerance systems, and take steps to secure their web, database, and mail servers. The staff follow security checklists that include keeping systems updated, implementing firewalls and SSL, encrypting connections, securing user logins and databases, and scanning for malware.
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Description Defense-in-Depth, an IA concept refers to multip.docx
Description:
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
User domain - any user of our systems falls in this domain, whether inside or outside our organization
Workstation domain - not just computers, but any device our users use
LAN domain - each LAN and the devices that make a LAN work
WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Description Defense-in-Depth, an IA concept refers to multip.docx
Description:
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
User domain - any user of our systems falls in this domain, whether inside or outside our organization
Workstation domain - not just computers, but any device our users use
LAN domain - each LAN and the devices that make a LAN work
WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Defense-in-Depth, an IA concept refers to multiple layers of securit.docx
Defense-in-Depth, an IA concept refers to multiple layers of security controls placed throughout an IT system. Post a brief summary of examples of these types of controls in action and your experience with at least one of type of control. Illustrate whether or not you believe, in your experience, this approach is effective. Be sure to indicate in what domain your example occurs:
-User domain - any user of our systems falls in this domain, whether inside or outside our organization
-Workstation domain - not just computers, but any device our users use
-LAN domain - each LAN and the devices that make a LAN work
-WAN domain - the system that links devices across long distances; typically this is the Internet which is used by most businesses
-LAN-to-WAN domain - the infrastructure and devices that connect our organization's LANs to the WAN system
-Remote Access domain - the technologies used by our mobile and remote users to connect to their customary resources; can include VPN solutions and encryption technology
-System/Application domain - technologies used to actually conduct business functions, as opposed to making connections of various types
.
Enterprise firewalls feature and benefits
Cyberoam network security appliances offer next generation security features and deliver future-ready security to highly complex enterprise networks. The unique Layer 8 identity-based security gives enterprises complete visibility and control over user activity.
Operational Technology Security Solution for Utilities
The document summarizes a security solution called OTPS that is designed to protect utility control systems from vulnerabilities. It notes that control systems have become more vulnerable as they integrate with corporate networks and use commercial operating systems. The OTPS solution uses security event management, intrusion detection, and other tools to monitor systems for breaches, protect critical infrastructure, and detect and prevent security issues across networks, protocols, processes and system health. It is presented as a customizable, scalable solution to implement security best practices for utility control environments.
What are the Different Types of Firewall and its Architectures.pdf
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Firewalls can be used to separate network nodes from external traffic sources, internal traffic sources, or even specific applications. Firewalls are divided based on their general structure and method of operation. Techno Edge Systems LLC offers reliable Firewall solutions in Dubai to protect the entire network system and computers. For Any Queries Contact us: 971-54-4653108 Visit us: https://www.itamcsupport.ae/blog/what-are-the-different-types-of-firewall-and-its-architectures/Site to Site VPN Using TMG Firewall. University Final Presentation.
Final semester Presentation , About Virtual Private Network, Microsoft Forefront Thread Management Gateway, LAN Security, A campus network can easily span many buildings, bridges were used to connect the buildings together this broke up the collision domains, but the network was still one large broadcast domain. More and more users were attached to the hubs used in the network, here the performance problems in traditional campus networks included collisions, broadcasts and multicasts, and bandwidth. and soon the performance of the network was considered extremely slow. If a link or hub become down then there was no redundant link or backup hub so Redundancy was also extreme problem in traditional campus network.
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The document discusses security measures taken by the ICT directorate of Addis Ababa Science and Technology University. They use a FortiGate 1200D firewall to secure their internal network and servers from threats. They also use Kaspersky antivirus software, implement backup and fault tolerance systems, and take steps to secure their web, database, and mail servers. The staff follow security checklists that include keeping systems updated, implementing firewalls and SSL, encrypting connections, securing user logins and databases, and scanning for malware.
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Network security architecture is the planning and design of the campus network to reduce
security risks in accordance with the institution’s risk analysis and security policies. It focuses on
reduc-ing security risks and enforcing policy through the design and con-figuration of firewalls,
routers, and other network equipment.
Network security is important because it is one of the means to enforce the policies and
procedures developed by the institution to protect information. It is often referred to as the “front
door” in broader discussions of IT security. To the extent that you can block network access to a
computer, you “lock” the door and provide bet-ter protection for that computer and its contents.
Traditional network design has focused on creating a secure net-work perimeter around the
organization and strategically placing a firewall at the point where the network is connected to
the Inter-net. For higher education, this traditional design is problematic; our constituents need
access from off campus to a large number of machines and services on campus. In addition,
because we have many computers on our campus that we cannot implicitly trust, we also must be
concerned about security threats from inside the perimeter protected by a traditional firewall.
These design issues require a different approach to network security. Although it is impossible to
do justice to the topic of network design in a few pages, there are some best practices that I feel
universities should focus on in terms of network design.
Step 1: Eliminate Network Components That Still UseShared Ethernet
Shared Ethernet switches (or hubs) were developed more than a decade ago to interconnect
multiple computers and networks. These hubs retransmit all network traffic to all computers
connected to that hub. The security implication is that if one computer has its security
compromised it can be used to monitor network traffic com-ing from any other computer that
shares the same hub. This could expose passwords and other sensitive information. Today,
switched Ethernet, which isolates traffic intended for one computer from the view of others on
the same switch, is very inexpensive and, hence, it is worth the cost of replacing older hubs.
Step 2: Embrace and Implement the Concept of Defense and Use Multiple Firewalls Within
Your Network
Commercial and Linux-based firewalls are inexpensive enough that you can deploy these in
multiple locations as needed. It is still bene-ficial to have a firewall separating your institutional
network from the connection to the Internet. This firewall, called a border firewall, will provide a
minimal level of protection for all computers on your net-work. The major benefit of this firewall
is that it allows your network and security staff to quickly block external access should a threat
arise, such as when the “SQL worm” was launched in January 2003 In addition to the border
firewall, consider adding internal firewalls to protect areas that requi.
Firewall and vpn
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Network security
Network security refers to the set of rules, technologies, and processes used to protect computer networks. It aims to preserve the confidentiality, integrity, and availability of network data and resources. Network security works through physical, technical, and administrative controls. Physical controls restrict access to network infrastructure. Technical controls protect data in transit and storage through measures like antivirus software, firewalls, and virtual private networks. Administrative controls govern user authentication, access levels, and system changes through security policies. Together these layers safeguard networks from both internal and external cyber threats.
Proactive Security That Works
LiveSquare provides proactive security solutions that work across an organization's network and applications as a single system. When an attacker targets one part of the network, they are instantly blocked from all other parts. LiveSquare uses collaborative security where all customer sites work together to identify and block attackers in real-time. Their global system senses attacks from around the world and proactively defends customers by completely blocking attackers from accessing networks or clients.
Cloud Computing and PSo
The document describes a major project report on a cloud-based intrusion detection system using a backpropagation neural network based on particle swarm optimization. It discusses cloud computing concepts, characteristics, service models, and security threats. The proposed methodology uses particle swarm optimization to optimize training data sets for a backpropagation neural network intrusion detection system. Soft computing techniques like artificial neural networks, fuzzy logic, genetic algorithms, and particle swarm optimization are applied. The objectives are to design an intrusion detection system and evaluate its performance on test data sets.
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Keywords-cloud computing; cloud-based security; enterprise security architecture; mobile enterprise; networkbased
security; security.
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Types of Networks Week7 Part4-IS RevisionSu2013 .docx
Types of Networks
Week7 Part4-IS
RevisionSu2013
Types of Networks
There are different types of networks. Each type has different characteristics and
therefore different security needs. Some of the fundamental differentiating attributes of
the various types of networks are:
the physical distance the network spans
the topology of the network nodes
the types of media used for communication between nodes in the network
the different devices supported on the network
the different applications supported on the network
the different groups of users permitted on the network
the different protocols supported on each network
Depending on the type of network there may be different information security
requirements requiring that various protocols, security services, security mechanisms are
used in a fashion to support that type of network.
While each network environment has some characteristics and security needs unique to
that environment, there are many security techniques that should be universally applied to
all environments. For example; sound policies and procedures, risk assessment of the
assets, user awareness training, encryption technology, authentication technology, sound
credential (password) selection and protection, malware protection, firewalls are a few
security techniques that need to be applied in all of the networks albeit in configurations
that best suits a particular environment.
Local Area Network (LAN)
A LAN network covers a small geographic area that takes advantage of high speed data
transfers usually implemented through Ethernet or fiber. A LAN could be a home, office,
group of building with local proximity (university, business). LANs typically share
resources such as file servers and printers.
Wide Area Network (WAN)
A WAN covers a large geographic area that may require connection through satellite,
high speed dedicated lines and other means. The internet is a WAN. WANs can connect
LANs together into a larger organizational structure that can be used to share resources
such as file, email, dns servers to name a few. Resources can be shared using slower
connections on geographically separated areas across the WAN.
Wireless Networks and Mobile Networks
The movement to laptop systems at home and workplaces accelerated the mobility of
computing.
As employees traveled between offices, client sites, home and various other remote
locations they could remain connected to company servers as long as the remote site had
connectivity to the companies’ intranet. Initially this connectivity was provided by
having Ethernet cabling available for remote users to physically plug their laptops into.
Eventually, companies started installing wireless hotspots that could be automatically
detected by systems that had wireless cards.
The proliferation of wireless connectivity and internet use spread from the workplace to
genera ...
Chapter 13Secure Network DesignCopyright © 2014 by McGraw-Hi
Chapter 13
Secure Network Design
Copyright © 2014 by McGraw-Hill Education.
Introduction
In this chapter, we review some high-level security concepts that should be kept in mind during network design.
This chapter introduces the basic concepts of network architecture and the best practices for security that should be considered when designing a network.
Copyright © 2014 by McGraw-Hill Education.
Electronic Security Perimeter (ESP)
The boundary between an organization’s network and the Internet or a peered network is known as an electronic security perimeter (ESP).
The network perimeter lies wholly within the ESP and is often confined to a particular physical location or set of locations, while the ESP has other elements such as corporate smartphones and smartphones, tablets, and other mobile devices. These devices may be outside of the network(s) physically, but they are still within the ESP.
Within this perimeter you will find all owned computing assets and potential storage locations for organization data, sometimes including third-party systems.
Copyright © 2014 by McGraw-Hill Education.
Acceptable Risk
Management’s risk tolerance is expressed through the policies, procedures, and guidelines issued to the staff.
A complete set of policies outlining management’s preferences and its tolerance of information security risks enables employees to make appropriate infrastructure decisions when designing and securing new systems and networks.
Thus, the design and configuration of the infrastructure becomes the enforcement of those documents.
Copyright © 2014 by McGraw-Hill Education.
Designing Security into a Network
Separating assets of differing trust and security requirements should be an integral goal during the design phase of any new project.
Aggregating assets that have similar security requirements in dedicated zones allows an organization to use small numbers of network security devices, such as firewalls and intrusion-detection systems, to secure and monitor multiple application systems.
Copyright © 2014 by McGraw-Hill Education.
Network Design Models
The three-tier Cisco Hierarchical Internetworking model is derived from the Public Switched Telephone Network (PSTN) model, which is in use for much of the world’s telephone infrastructure.
Copyright © 2014 by McGraw-Hill Education.
The Three-Tier Cisco Hierarchical Internetworking Model
Copyright © 2014 by McGraw-Hill Education.
Newer Models
Although the Cisco three-tier model is perhaps the most commonly known and referenced model for designing LAN environments, it has its limitations and is rapidly being supplanted by newer models aimed at addressing the specific needs of highly virtualized data centers, different industry verticals, and cloud computing and multitenancy environments.
Many modern data center architectures and “cloud” designs favor a clustered switching, class fabric, or collapsed two-tier approach that offers higher perform ...
You work for a network consulting firm and you have been asked to crea.docx
You work for a network consulting firm and you have been asked to create a guide for firewall selection. Create an outline for a section that lists and defines the most important parameters of firewall functions, such as throughput.
Solution
Answer:
There are many parameters that must be evaluated well when considering afirewall solution for a company’s network. It is important that each of the following parameters are looked into deeply before making a selection decision:
Number of users
The choice of firewall must depend upon the number of users who will be using the network at a given time. The more the number of users, the higher class of firewall is needed. Firewalls available today are classified from SOHO (Small Office, Home Office) to more expensive enterprise class firewalls.
Random access memory
Choice of correct RAM is extremely important for a firewall to function well. The two types of RAM that hold importance while judging the compatibility with firewall are DRAM (Dynamic RAM) and SRAM (Static RAM).Networks with smaller number of users must choose DRAM
Address translation
Firewall must be able to perform network address translation (NAT)functionality that lets a business afford the capability to translate an illegal or private IP address into a legal public address and in turn, protect the anatomy of the network
Inbound and outbound filtering
Firewall must be able to detect what is passing through it in either direction. It must be able to filter malicious content coming to the network and going out of the network
Stealth mode
A good firewall must be able to put an entire network or some computer son a network into a stealth mode where the computers are kept hidden from the Internet world even when they are connected to Internet.
Privacy protection
Firewall must be able to block spyware, hijackers and adware from reaching to the computer.
Application Integrity
Firewall must monitor files on machines connected to the network to understand how the files were modified or launched. Any kind of evil changes must be notified to the users.
Intrusion detection
Firewall must scan the incoming data for signatures of known methods and notify users when any attack is recognized
Notifications
The firewall must work transparently and keep sending notifications to the users to show them what is happening on the firewall.
.
Air defense wireless_vulnerability_assessement_module_spec_sheet
The document describes Motorola's Wireless Vulnerability Assessment module. It allows remote testing of wireless network security by automatically logging into access points and simulating a hacker to identify vulnerabilities. This eliminates expensive on-site security scans. The module integrates with Motorola's AirDefense Services Platform to provide centralized and comprehensive wireless vulnerability testing across entire networks. It helps validate firewall policies and identify potential entry points to protect sensitive wired systems and data.
Computer system and network configuration
This document discusses computer network configurations. It defines a computer network as interconnecting two or more computers. There are two main types of networks: local area networks (LANs) which connect computers within a single location, and wide area networks (WANs) which span larger distances using phone or satellite links. Setting up a network involves designing the network type and hardware, rolling out the physical infrastructure like cables and servers, configuring user accounts and shared resources, and ongoing management like security, backups, and troubleshooting issues.
Describe what you would do to protect a network from attack, mention .pdf
Describe what you would do to protect a network from attack, mention any appliances or
products you can recommend.
Solution
Configuration Management
The main weapon in network attack defence is tight configuration management. The following
measures should be strictly implemented as part of configuration management.
• If the machines in your network should be running up-to-date copies of the operating system
and they are immediately updated whenever a new service pack or patch is released.
• All your configuration files in your Operating Systems or Applications should have enough
security.
• All the default passwords in your Operating Systems or Applications should be changed after
the installation.
• You should implement tight security for root/Administrator passwords
Firewalls
Another weapon for defense against network attack is Firewall. Firewall is a device and/or a
sotware that stands between a local network and the Internet, and filters traffic that might be
harmful. Firewalls can be classified in to four based on whether they filter at the IP packet level,
at the TCP session level, at the application level or hybrid.
1. Packet Filtering: Packet filtering firewalls are functioning at the IP packet level. Packet
filtering firewalls filters packets based on addresses and port number. Packet filtering firewalls
can be used as a weapon in network attack defense against Denial of Service (DoS) attacks and
IP Spoofing attacks.
2. Circuit Gateways: Circuit gateways firewalls operate at the transport layer, which means that
they can reassemble, examine or block all the packets in a TCP or UDP connection. Circuit
gateway firewalls can also Virtual Private Network (VPN) over the Internet by doing encryption
from firewall to firewall.
3. Application Proxies: Application proxy-based firewalls function at the application level. At
this level, you can block or control traffic generated by applications. Application Proxies can
provide very comprehensive protection against a wide range of threats.
4. Hybrid: A hybrid firewall may consist of a pocket filtering combined with an application
proxy firewall, or a circuit gateway combined with an application proxy firewall.
Encryption
Encryption is another great weapon used in defense against network attacks. Click the following
link to get a basic idea of encryption.
Encryption can provide protection against eavesdropping and sniffer attacks. Private Key
Infrastructure (PKI) Technologies, Internet Protocol Security (IPSec), and Virtual Private
Networks (VPN) when implemented properly, can secure you network against network attacks.
Other tips for defense against network attack are
• Privilege escalation at different levels and strict password policies
• Tight physical security for all your machines, especially servers.
• Tight physical security and isolation for your back up data..
CISA GOV - Seven Steps to Effectively Defend ICS
INTRODUCTION
Cyber intrusions into US Critical Infrastructure systems are happening with increased frequency. For many industrial control systems (ICSs), it’s not a matter of if an intrusion will take place, but when. In Fiscal Year (FY) 2015, 295 incidents were reported to ICS-CERT, and many more went unreported or undetected. The capabilities of our adversaries have been demonstrated and cyber incidents are increasing in frequency and complexity. Simply building a
network with a hardened perimeter is no longer adequate. Securing ICSs against the modern threat requires well-planned and well-implemented strategies that will provide network defense
teams a chance to quickly and effectively detect, counter, and expel an adversary. This paper presents seven strategies that can be implemented today to counter common exploitable
weaknesses in “as-built” control systems.
Seven recommendations for bolstering industrial control system cyber security
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NCCIC - Seven Steps for Achieving Cybersecurity for Industrial Control Systems
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Defending Industrial Control Systems From Cyberattack
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COLLEGEPHYSICS LAB REPORTSTUDENTS NAME.docx
COLLEGE
PHYSICS LAB REPORT
STUDENTS NAME
ANALYSIS OF A BUBBLE CHAMBER PICTURE
SUPERVISED BY:
19/05/2020
1. Introduction
A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it. It was invented in 1952 by Donald A. Glaser, for which he was awarded the 1960 Nobel Prize in Physics.
A convenient way to study the properties of the fundamental subatomic particles is through observation of their bubble trails, or tracks, in a bubble chamber. Using measurements made directly on a bubble chamber photograph, we can often identify the particles from their tracks and calculate their masses and other properties. In a typical experiment, a beam of a particular type of particle is sent from an accelerator into a bubble chamber, which is a large liquid-filled vessel. To simplify the analysis of the data, the liquid used is often hydrogen, the simplest element. The use of liquid hydrogen, while it simplifies the analysis, complicates the experiment itself, since hydrogen, a gas at room temperature, liquefies only when cooled to -246◦C. For charged particles to leave tracks in passing through the chamber, the liquid must be in a “super-heated” state, in which the slightest disturbance causes boiling to occur. In practice, this is accomplished by expanding the vapor above the liquid with a piston a few thousandths of a second before the particles enter the chamber.
2. Methods
2.1 Materials needed:
1. student worksheet per student
2. Ruler
3. Scissors
4. Glue stick
5. Pocket calculator
2.2 Procedures
2.2.1 Calculation of the X Particle’s Mass.
Make measurements on each of the photographs. In particular, for each of the circled events measure these four quantities:
· `Σ - The length of the Σ track,
· θ - the angle between the Σ− and π− track,
· s - the sagitta of the π− track,
· `π - The chord length of the π− track.
Your values for the event should be close to those given in the sample input. Run the program using each set of measurements, and tabulate the computed X0 mass from each event. Compute an average of the calculated masses and find the average deviation, expressing your result as Mx ±∆Mx.
Compare your final result with some known neutral particles listed below and identify the X0 particle based on this comparison.
Particlemass (in MeV/c2)
π0 135
K0 498
n 940
Λ0 1116
Σ0 1192
Ξ0 1315
2.2.2 Determination of the Angle θ.
The angle θ between the π− and Σ− momentum vectors can be determined by drawing tangents to the π− and Σ− tracks at the point of the Σ− decay.
We can then measure the angle between the tangents using a protractor. We can show.
Collins did not understand the events that led to the reasoning .docx
Collins did not understand the events that led to the reasoning why and actions how Wells Fargo conveyed victories, achievements, and accomplishments. Therefore, Collins was incorrect. Wells Fargo as a company was able to achieve earning because of their successful strategies in profit revenue or turnover for each employee. The Good to Great article brought up that many people were surprised when finding out what made companies successful especially in relation to the leadership (Collins, 2001).
Our text states that it is difficult for companies to find good ethical leaders because they tend to be more expensive (Meese, Ortmeier, 2001). Unethical leadership is sure to bring the downfall of any business; it is impossible to have a successful business if there are unethical practices, the employees are also bound to begin these practices making it difficult for the company to hold their end of their promises to their customers or members.
"He who oppresses the poor to make more for himself or who gives to the rich, will only come to poverty" (Proverbs 22:16).
Collins, J. (2001). Good to great: Why some companies make the leap and others don't. New York, NY: Harper Collins.
Mees, E., Ortmeier, P. (2001). Leadership, ethics, and policing:Challenges for the 21st century. Upper Saddle River, NJ: Prentice Hall
250-word reply to classmate threads. The reply requires a minimum of 1 properly formatted citation. Each reply must be completed by you, the individual student. Additionally, each thread and reply must reflect a solid Christian worldview through the use of at least 1 Holy Bible reference.
Responding to a classmate’s post requires both the addition of new ideas and analysis. A particular point made by the classmate must be addressed and built upon by your analysis in order
to move the conversation forward
. Thus, the response post is a rigorous assignment that requires you to build upon initial posts to develop deeper and more thorough discussion of the ideas introduced in the initial posts. As such, reply posts that merely affirm, restate, or unprofessionally quarrel with the previous post(s) and fail to make a valuable, substantive contribution to the discussion will receive appropriate point deductions.
.
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Ch20 book
Firewalls are used to protect organizational networks from internet threats. They act as a single controlled access point between internal networks and the internet. Firewalls use various techniques like service control, direction control, user control and behavior control to enforce an organization's security policy by filtering traffic, controlling access to services, and monitoring usage. While firewalls provide protection, their limitations include not preventing attacks that bypass the firewall or protecting against internal threats.
Cloud Computing Security with Anjuna Confidential Computing Software
Anjuna's Confidential Computing software makes the computing secure and simple with existing workloads. Instead of recoding any type applications, Anjuna enables the software to operate very transparently in the secure confines of an isolated private environment which are running over public hosted infrastructure—no changes to applications or IT operations. Hence providing best cloud computing security.
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Network security architecture is the planning and design of the campus network to reduce
security risks in accordance with the institution’s risk analysis and security policies. It focuses on
reduc-ing security risks and enforcing policy through the design and con-figuration of firewalls,
routers, and other network equipment.
Network security is important because it is one of the means to enforce the policies and
procedures developed by the institution to protect information. It is often referred to as the “front
door” in broader discussions of IT security. To the extent that you can block network access to a
computer, you “lock” the door and provide bet-ter protection for that computer and its contents.
Traditional network design has focused on creating a secure net-work perimeter around the
organization and strategically placing a firewall at the point where the network is connected to
the Inter-net. For higher education, this traditional design is problematic; our constituents need
access from off campus to a large number of machines and services on campus. In addition,
because we have many computers on our campus that we cannot implicitly trust, we also must be
concerned about security threats from inside the perimeter protected by a traditional firewall.
These design issues require a different approach to network security. Although it is impossible to
do justice to the topic of network design in a few pages, there are some best practices that I feel
universities should focus on in terms of network design.
Step 1: Eliminate Network Components That Still UseShared Ethernet
Shared Ethernet switches (or hubs) were developed more than a decade ago to interconnect
multiple computers and networks. These hubs retransmit all network traffic to all computers
connected to that hub. The security implication is that if one computer has its security
compromised it can be used to monitor network traffic com-ing from any other computer that
shares the same hub. This could expose passwords and other sensitive information. Today,
switched Ethernet, which isolates traffic intended for one computer from the view of others on
the same switch, is very inexpensive and, hence, it is worth the cost of replacing older hubs.
Step 2: Embrace and Implement the Concept of Defense and Use Multiple Firewalls Within
Your Network
Commercial and Linux-based firewalls are inexpensive enough that you can deploy these in
multiple locations as needed. It is still bene-ficial to have a firewall separating your institutional
network from the connection to the Internet. This firewall, called a border firewall, will provide a
minimal level of protection for all computers on your net-work. The major benefit of this firewall
is that it allows your network and security staff to quickly block external access should a threat
arise, such as when the “SQL worm” was launched in January 2003 In addition to the border
firewall, consider adding internal firewalls to protect areas that requi.
Firewall and vpn
The document discusses firewalls and virtual private networks (VPNs). It defines a firewall as a network security device that monitors traffic and decides whether to allow or block it based on security rules. Firewalls can be hardware, software, or both, and are categorized as network or host-based. The document also outlines the process of implementing a firewall, including defining security needs, researching solutions, and installation. It then defines a VPN as extending a private network over a public network through an encrypted connection. Advantages of VPNs include enhanced security, remote access, file sharing, changing IP addresses, and reduced costs, while complexity and reliability can sometimes be disadvantages.
Network security
Network security refers to the set of rules, technologies, and processes used to protect computer networks. It aims to preserve the confidentiality, integrity, and availability of network data and resources. Network security works through physical, technical, and administrative controls. Physical controls restrict access to network infrastructure. Technical controls protect data in transit and storage through measures like antivirus software, firewalls, and virtual private networks. Administrative controls govern user authentication, access levels, and system changes through security policies. Together these layers safeguard networks from both internal and external cyber threats.
Proactive Security That Works
LiveSquare provides proactive security solutions that work across an organization's network and applications as a single system. When an attacker targets one part of the network, they are instantly blocked from all other parts. LiveSquare uses collaborative security where all customer sites work together to identify and block attackers in real-time. Their global system senses attacks from around the world and proactively defends customers by completely blocking attackers from accessing networks or clients.
Cloud Computing and PSo
The document describes a major project report on a cloud-based intrusion detection system using a backpropagation neural network based on particle swarm optimization. It discusses cloud computing concepts, characteristics, service models, and security threats. The proposed methodology uses particle swarm optimization to optimize training data sets for a backpropagation neural network intrusion detection system. Soft computing techniques like artificial neural networks, fuzzy logic, genetic algorithms, and particle swarm optimization are applied. The objectives are to design an intrusion detection system and evaluate its performance on test data sets.
Protecting the movable Endeavor with Network-Based validation and Virtual Com...
Abstract: A new security architecture for the mobile enterprise which uses network-based security and cloud
computing has been proposed in these paper. This newly proposed architecture is mainly for both simplifying
and enhancing the security of enterprises, and reinstates the currently disappearing security perimeter.
Keywords-cloud computing; cloud-based security; enterprise security architecture; mobile enterprise; networkbased
security; security.
Operational Complexity: The Biggest Security Threat to Your AWS Environment
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Types of Networks Week7 Part4-IS RevisionSu2013 .docx
Types of Networks
Week7 Part4-IS
RevisionSu2013
Types of Networks
There are different types of networks. Each type has different characteristics and
therefore different security needs. Some of the fundamental differentiating attributes of
the various types of networks are:
the physical distance the network spans
the topology of the network nodes
the types of media used for communication between nodes in the network
the different devices supported on the network
the different applications supported on the network
the different groups of users permitted on the network
the different protocols supported on each network
Depending on the type of network there may be different information security
requirements requiring that various protocols, security services, security mechanisms are
used in a fashion to support that type of network.
While each network environment has some characteristics and security needs unique to
that environment, there are many security techniques that should be universally applied to
all environments. For example; sound policies and procedures, risk assessment of the
assets, user awareness training, encryption technology, authentication technology, sound
credential (password) selection and protection, malware protection, firewalls are a few
security techniques that need to be applied in all of the networks albeit in configurations
that best suits a particular environment.
Local Area Network (LAN)
A LAN network covers a small geographic area that takes advantage of high speed data
transfers usually implemented through Ethernet or fiber. A LAN could be a home, office,
group of building with local proximity (university, business). LANs typically share
resources such as file servers and printers.
Wide Area Network (WAN)
A WAN covers a large geographic area that may require connection through satellite,
high speed dedicated lines and other means. The internet is a WAN. WANs can connect
LANs together into a larger organizational structure that can be used to share resources
such as file, email, dns servers to name a few. Resources can be shared using slower
connections on geographically separated areas across the WAN.
Wireless Networks and Mobile Networks
The movement to laptop systems at home and workplaces accelerated the mobility of
computing.
As employees traveled between offices, client sites, home and various other remote
locations they could remain connected to company servers as long as the remote site had
connectivity to the companies’ intranet. Initially this connectivity was provided by
having Ethernet cabling available for remote users to physically plug their laptops into.
Eventually, companies started installing wireless hotspots that could be automatically
detected by systems that had wireless cards.
The proliferation of wireless connectivity and internet use spread from the workplace to
genera ...
Chapter 13Secure Network DesignCopyright © 2014 by McGraw-Hi
Chapter 13
Secure Network Design
Copyright © 2014 by McGraw-Hill Education.
Introduction
In this chapter, we review some high-level security concepts that should be kept in mind during network design.
This chapter introduces the basic concepts of network architecture and the best practices for security that should be considered when designing a network.
Copyright © 2014 by McGraw-Hill Education.
Electronic Security Perimeter (ESP)
The boundary between an organization’s network and the Internet or a peered network is known as an electronic security perimeter (ESP).
The network perimeter lies wholly within the ESP and is often confined to a particular physical location or set of locations, while the ESP has other elements such as corporate smartphones and smartphones, tablets, and other mobile devices. These devices may be outside of the network(s) physically, but they are still within the ESP.
Within this perimeter you will find all owned computing assets and potential storage locations for organization data, sometimes including third-party systems.
Copyright © 2014 by McGraw-Hill Education.
Acceptable Risk
Management’s risk tolerance is expressed through the policies, procedures, and guidelines issued to the staff.
A complete set of policies outlining management’s preferences and its tolerance of information security risks enables employees to make appropriate infrastructure decisions when designing and securing new systems and networks.
Thus, the design and configuration of the infrastructure becomes the enforcement of those documents.
Copyright © 2014 by McGraw-Hill Education.
Designing Security into a Network
Separating assets of differing trust and security requirements should be an integral goal during the design phase of any new project.
Aggregating assets that have similar security requirements in dedicated zones allows an organization to use small numbers of network security devices, such as firewalls and intrusion-detection systems, to secure and monitor multiple application systems.
Copyright © 2014 by McGraw-Hill Education.
Network Design Models
The three-tier Cisco Hierarchical Internetworking model is derived from the Public Switched Telephone Network (PSTN) model, which is in use for much of the world’s telephone infrastructure.
Copyright © 2014 by McGraw-Hill Education.
The Three-Tier Cisco Hierarchical Internetworking Model
Copyright © 2014 by McGraw-Hill Education.
Newer Models
Although the Cisco three-tier model is perhaps the most commonly known and referenced model for designing LAN environments, it has its limitations and is rapidly being supplanted by newer models aimed at addressing the specific needs of highly virtualized data centers, different industry verticals, and cloud computing and multitenancy environments.
Many modern data center architectures and “cloud” designs favor a clustered switching, class fabric, or collapsed two-tier approach that offers higher perform ...
You work for a network consulting firm and you have been asked to crea.docx
You work for a network consulting firm and you have been asked to create a guide for firewall selection. Create an outline for a section that lists and defines the most important parameters of firewall functions, such as throughput.
Solution
Answer:
There are many parameters that must be evaluated well when considering afirewall solution for a company’s network. It is important that each of the following parameters are looked into deeply before making a selection decision:
Number of users
The choice of firewall must depend upon the number of users who will be using the network at a given time. The more the number of users, the higher class of firewall is needed. Firewalls available today are classified from SOHO (Small Office, Home Office) to more expensive enterprise class firewalls.
Random access memory
Choice of correct RAM is extremely important for a firewall to function well. The two types of RAM that hold importance while judging the compatibility with firewall are DRAM (Dynamic RAM) and SRAM (Static RAM).Networks with smaller number of users must choose DRAM
Address translation
Firewall must be able to perform network address translation (NAT)functionality that lets a business afford the capability to translate an illegal or private IP address into a legal public address and in turn, protect the anatomy of the network
Inbound and outbound filtering
Firewall must be able to detect what is passing through it in either direction. It must be able to filter malicious content coming to the network and going out of the network
Stealth mode
A good firewall must be able to put an entire network or some computer son a network into a stealth mode where the computers are kept hidden from the Internet world even when they are connected to Internet.
Privacy protection
Firewall must be able to block spyware, hijackers and adware from reaching to the computer.
Application Integrity
Firewall must monitor files on machines connected to the network to understand how the files were modified or launched. Any kind of evil changes must be notified to the users.
Intrusion detection
Firewall must scan the incoming data for signatures of known methods and notify users when any attack is recognized
Notifications
The firewall must work transparently and keep sending notifications to the users to show them what is happening on the firewall.
.
Air defense wireless_vulnerability_assessement_module_spec_sheet
The document describes Motorola's Wireless Vulnerability Assessment module. It allows remote testing of wireless network security by automatically logging into access points and simulating a hacker to identify vulnerabilities. This eliminates expensive on-site security scans. The module integrates with Motorola's AirDefense Services Platform to provide centralized and comprehensive wireless vulnerability testing across entire networks. It helps validate firewall policies and identify potential entry points to protect sensitive wired systems and data.
Computer system and network configuration
This document discusses computer network configurations. It defines a computer network as interconnecting two or more computers. There are two main types of networks: local area networks (LANs) which connect computers within a single location, and wide area networks (WANs) which span larger distances using phone or satellite links. Setting up a network involves designing the network type and hardware, rolling out the physical infrastructure like cables and servers, configuring user accounts and shared resources, and ongoing management like security, backups, and troubleshooting issues.
Describe what you would do to protect a network from attack, mention .pdf
Describe what you would do to protect a network from attack, mention any appliances or
products you can recommend.
Solution
Configuration Management
The main weapon in network attack defence is tight configuration management. The following
measures should be strictly implemented as part of configuration management.
• If the machines in your network should be running up-to-date copies of the operating system
and they are immediately updated whenever a new service pack or patch is released.
• All your configuration files in your Operating Systems or Applications should have enough
security.
• All the default passwords in your Operating Systems or Applications should be changed after
the installation.
• You should implement tight security for root/Administrator passwords
Firewalls
Another weapon for defense against network attack is Firewall. Firewall is a device and/or a
sotware that stands between a local network and the Internet, and filters traffic that might be
harmful. Firewalls can be classified in to four based on whether they filter at the IP packet level,
at the TCP session level, at the application level or hybrid.
1. Packet Filtering: Packet filtering firewalls are functioning at the IP packet level. Packet
filtering firewalls filters packets based on addresses and port number. Packet filtering firewalls
can be used as a weapon in network attack defense against Denial of Service (DoS) attacks and
IP Spoofing attacks.
2. Circuit Gateways: Circuit gateways firewalls operate at the transport layer, which means that
they can reassemble, examine or block all the packets in a TCP or UDP connection. Circuit
gateway firewalls can also Virtual Private Network (VPN) over the Internet by doing encryption
from firewall to firewall.
3. Application Proxies: Application proxy-based firewalls function at the application level. At
this level, you can block or control traffic generated by applications. Application Proxies can
provide very comprehensive protection against a wide range of threats.
4. Hybrid: A hybrid firewall may consist of a pocket filtering combined with an application
proxy firewall, or a circuit gateway combined with an application proxy firewall.
Encryption
Encryption is another great weapon used in defense against network attacks. Click the following
link to get a basic idea of encryption.
Encryption can provide protection against eavesdropping and sniffer attacks. Private Key
Infrastructure (PKI) Technologies, Internet Protocol Security (IPSec), and Virtual Private
Networks (VPN) when implemented properly, can secure you network against network attacks.
Other tips for defense against network attack are
• Privilege escalation at different levels and strict password policies
• Tight physical security for all your machines, especially servers.
• Tight physical security and isolation for your back up data..
CISA GOV - Seven Steps to Effectively Defend ICS
INTRODUCTION
Cyber intrusions into US Critical Infrastructure systems are happening with increased frequency. For many industrial control systems (ICSs), it’s not a matter of if an intrusion will take place, but when. In Fiscal Year (FY) 2015, 295 incidents were reported to ICS-CERT, and many more went unreported or undetected. The capabilities of our adversaries have been demonstrated and cyber incidents are increasing in frequency and complexity. Simply building a
network with a hardened perimeter is no longer adequate. Securing ICSs against the modern threat requires well-planned and well-implemented strategies that will provide network defense
teams a chance to quickly and effectively detect, counter, and expel an adversary. This paper presents seven strategies that can be implemented today to counter common exploitable
weaknesses in “as-built” control systems.
Seven recommendations for bolstering industrial control system cyber security
Recommendations from ICS-CERT, the Industrial Control System Cyber Emergency Response Team, a division of Department of Homeland Security. Seven basic steps to follow that will substantially boost cyber security and generate awareness of the threat potential
NCCIC - Seven Steps for Achieving Cybersecurity for Industrial Control Systems
This paper presents seven strategies that can be implemented today to counter common exploitable weaknesses in “as-built” control systems for industrial processes and operations.
Defending Industrial Control Systems From Cyberattack
Industrial control systems of all types and vintages likely are exposed to some level of unauthorized intrusion. Individuals and organizations with nefarious intent will try to gain access to information or control elements, stealing data or causing a range of inappropriate operations.
Similar to Defense-in-Depth, an IA concept refers to multiple layers of securit.docx (20)
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Types of Networks Week7 Part4-IS RevisionSu2013 .docx
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COLLEGE
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STUDENTS NAME
ANALYSIS OF A BUBBLE CHAMBER PICTURE
SUPERVISED BY:
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1. Introduction
A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it. It was invented in 1952 by Donald A. Glaser, for which he was awarded the 1960 Nobel Prize in Physics.
A convenient way to study the properties of the fundamental subatomic particles is through observation of their bubble trails, or tracks, in a bubble chamber. Using measurements made directly on a bubble chamber photograph, we can often identify the particles from their tracks and calculate their masses and other properties. In a typical experiment, a beam of a particular type of particle is sent from an accelerator into a bubble chamber, which is a large liquid-filled vessel. To simplify the analysis of the data, the liquid used is often hydrogen, the simplest element. The use of liquid hydrogen, while it simplifies the analysis, complicates the experiment itself, since hydrogen, a gas at room temperature, liquefies only when cooled to -246◦C. For charged particles to leave tracks in passing through the chamber, the liquid must be in a “super-heated” state, in which the slightest disturbance causes boiling to occur. In practice, this is accomplished by expanding the vapor above the liquid with a piston a few thousandths of a second before the particles enter the chamber.
2. Methods
2.1 Materials needed:
1. student worksheet per student
2. Ruler
3. Scissors
4. Glue stick
5. Pocket calculator
2.2 Procedures
2.2.1 Calculation of the X Particle’s Mass.
Make measurements on each of the photographs. In particular, for each of the circled events measure these four quantities:
· `Σ - The length of the Σ track,
· θ - the angle between the Σ− and π− track,
· s - the sagitta of the π− track,
· `π - The chord length of the π− track.
Your values for the event should be close to those given in the sample input. Run the program using each set of measurements, and tabulate the computed X0 mass from each event. Compute an average of the calculated masses and find the average deviation, expressing your result as Mx ±∆Mx.
Compare your final result with some known neutral particles listed below and identify the X0 particle based on this comparison.
Particlemass (in MeV/c2)
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n 940
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2.2.2 Determination of the Angle θ.
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Collins, D. (2012). Business Ethics. Hoboken, NJ: Wiley
Weiss, J. (2014).
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. San Francisco, CA: Koehler.
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Use Apa Style, cites, references and avoid plagiarism.
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Paper requirements
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Minimum
1200
words (excluding title page, table of contents, abstract, and references pages)
Minimum of four (4) references
Format your paper consistent with APA guidelines
When submitting the assignment, please ensure you are submitting as an attached
MS Word document
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