- The CISO has requested additional information on firewall solutions to ensure confidentiality, integrity, and availability (CIA).
- The best firewall is a next generation firewall (NGFW) like Cisco, which provides packet filtering, intrusion prevention, sandboxing, signatures, and visibility over users and traffic.
- Managing the firewall includes documenting policies, rules, diagrams, risks, and transaction/audit logs.
A Complete Guide To Firewall How To Build A Secure Networking System.pptxBluechipComputerSyst
In today's interconnected world, the value of a secure networking system cannot be overstated. In a digital landscape where businesses
https://www.bluechip-gulf.ae/guide-firewall-build-secure-networking-system/
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.
2.
· Unshielded Twisted Pair (UTP) Cables
· Shielded Twisted Pair (STP) Cable
· Coaxial Cable
· Fiber Optic Cable
· Cable Installation Guides
· Unshielded Twisted Pair (UTP) Cable
3. In this network we will use CAT5 and CAT6 patch. These closets should be used in the server room of the location at Atlanta location and we shall also create one at the Cincinati location due to the big number of hanging wires that we shall use.
4. Wireless networks are much more susceptible to unauthorized use than cabled networks. We should encrypt the network by putting a password to keep out unauthorized access that may lead to network attacks.
I recommend that we turn off all the remote control related features because hackers at times try to breach our network wirelessly. For an intrusion to occur, it can either be from within the organization or even other breaches that come from outside the organization.
I recommend that we put in place packet sniffing measures in our network in order to detect any attacks that are targeted to our network. These may include worms, Trojan horses, botnet, malicious malware etc. The packet sniffers will help us identify when someone is trying to hack into the network.
I also recommend network segmentation where by the network is split into different classifications. This eases the placing of security levels and policies on the network.
We should also put in place physical security in order to curb problems like break-ins in to the server rooms by attackers especially those working in the organization. We should do this by putting in place some policies and levels of restriction because it can lead to data loss.
We should put in place a Virtual Private Network. A virtual private network encrypts the connection from an endpoint to a network, often over the Internet. Typically, a remote-access VPN uses SSL to authenticate the communication between the devices and network.
I also recommend the use of firewalls in the network security module. Firewalls put up a barrier between your trusted internal network and untrusted outside networks, such as the Internet. They use a set of defined rules to block or to allow traffic. A firewall can be software, hardware, or both.
I also recommend the use of access control measures for example passwords, finger print scans, iris scans etc. Not every user should have access to your network. To protect yourself from potential attacks, you need to recognize each user and each device. Then you can enforce your security policies. You can also block out the noncompliant end-point devices or provide them with limited access. This process is referred to as network access control (NAC).
6. I recommend the use of an access server. An access server acts as a concentration point for dial-in and dial-out connections which is perfect for our network model.
I recommend the used of WAN Switch. A WAN switch is a multiport internetworking device used in carrier networks. These can be used to connect de.
Why do you need a network security checklist? Your business faces threats on many fronts, and the more users, devices, and applications you add, the more vulnerable your network becomes. Whether your business is small or large, consider your network security requirements. Then follow our five-step network security checklist to create a holistic security solution to prevent breaches and address issues quickly.
A Complete Guide To Firewall How To Build A Secure Networking System.pptxBluechipComputerSyst
In today's interconnected world, the value of a secure networking system cannot be overstated. In a digital landscape where businesses
https://www.bluechip-gulf.ae/guide-firewall-build-secure-networking-system/
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.
2.
· Unshielded Twisted Pair (UTP) Cables
· Shielded Twisted Pair (STP) Cable
· Coaxial Cable
· Fiber Optic Cable
· Cable Installation Guides
· Unshielded Twisted Pair (UTP) Cable
3. In this network we will use CAT5 and CAT6 patch. These closets should be used in the server room of the location at Atlanta location and we shall also create one at the Cincinati location due to the big number of hanging wires that we shall use.
4. Wireless networks are much more susceptible to unauthorized use than cabled networks. We should encrypt the network by putting a password to keep out unauthorized access that may lead to network attacks.
I recommend that we turn off all the remote control related features because hackers at times try to breach our network wirelessly. For an intrusion to occur, it can either be from within the organization or even other breaches that come from outside the organization.
I recommend that we put in place packet sniffing measures in our network in order to detect any attacks that are targeted to our network. These may include worms, Trojan horses, botnet, malicious malware etc. The packet sniffers will help us identify when someone is trying to hack into the network.
I also recommend network segmentation where by the network is split into different classifications. This eases the placing of security levels and policies on the network.
We should also put in place physical security in order to curb problems like break-ins in to the server rooms by attackers especially those working in the organization. We should do this by putting in place some policies and levels of restriction because it can lead to data loss.
We should put in place a Virtual Private Network. A virtual private network encrypts the connection from an endpoint to a network, often over the Internet. Typically, a remote-access VPN uses SSL to authenticate the communication between the devices and network.
I also recommend the use of firewalls in the network security module. Firewalls put up a barrier between your trusted internal network and untrusted outside networks, such as the Internet. They use a set of defined rules to block or to allow traffic. A firewall can be software, hardware, or both.
I also recommend the use of access control measures for example passwords, finger print scans, iris scans etc. Not every user should have access to your network. To protect yourself from potential attacks, you need to recognize each user and each device. Then you can enforce your security policies. You can also block out the noncompliant end-point devices or provide them with limited access. This process is referred to as network access control (NAC).
6. I recommend the use of an access server. An access server acts as a concentration point for dial-in and dial-out connections which is perfect for our network model.
I recommend the used of WAN Switch. A WAN switch is a multiport internetworking device used in carrier networks. These can be used to connect de.
Why do you need a network security checklist? Your business faces threats on many fronts, and the more users, devices, and applications you add, the more vulnerable your network becomes. Whether your business is small or large, consider your network security requirements. Then follow our five-step network security checklist to create a holistic security solution to prevent breaches and address issues quickly.
How to Overcome Network Access Control Limitations for Better Network SecurityCryptzone
This eBook discusses network access control (NAC) limitations offering details on why a Software-Defined Perimeter delivers better network security for today's enterprise.
Team research paper and project on network vulnerabilities with multiple attacks and defesnses:
Cybersecurity
-For this project, our class was paired with teams to attempt to find vulnerabilities in other teams networks and to successfully beach their network.
-My role in this group was to help breach other team vulnerabilities through different attacks like responder attacks, honeypots, etc.
-The main challenges of this project were trying to find the vulnerabilities successfully, as the whole team had troubles with each of our different attacks and defenses.
-We learned how to use cybersecurity tools to help find vulnerabilities in networks and how to protect against them better. For example, in the honeypot we used we deployed it to port 80, when the attacker tried to access our fake server we were notified. We also deployed palto alto firewall to create our private and secure network. For an attack, we also used password crackers like john the ripper. This project taught us how to breach networks as a team.
Network security architecture is the planning and design of the camp.pdfaquazac
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.
In This PDF We discuss about how a firewall protects against the hackers. Techno Edge Systems LLC occupies a stateful services of Firewall solutions Dubai. For More Info Contact us: +971-54-4653108 Visit us: https://www.itamcsupport.ae/services/firewall-solutions-in-dubai/
CISA GOV - Seven Steps to Effectively Defend ICSMuhammad FAHAD
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 securityCTi Controltech
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
Industrial control systems may be at least, or even more, vulnerable to intrusion and malicious attack than you desktop PC. The National Cybersecurity and Communications Integration Center outlines seven basic steps you can take to harden your industrial control system against intrusion and mischief.
This paper presents seven strategies that can be implemented today to counter common exploitable weaknesses in “as-built” control systems. Length is 6 pages.
NCCIC - Seven Steps for Achieving Cybersecurity for Industrial Control SystemsMiller Energy, Inc.
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 CyberattackCTi Controltech
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.
How to Overcome Network Access Control Limitations for Better Network SecurityCryptzone
This eBook discusses network access control (NAC) limitations offering details on why a Software-Defined Perimeter delivers better network security for today's enterprise.
Team research paper and project on network vulnerabilities with multiple attacks and defesnses:
Cybersecurity
-For this project, our class was paired with teams to attempt to find vulnerabilities in other teams networks and to successfully beach their network.
-My role in this group was to help breach other team vulnerabilities through different attacks like responder attacks, honeypots, etc.
-The main challenges of this project were trying to find the vulnerabilities successfully, as the whole team had troubles with each of our different attacks and defenses.
-We learned how to use cybersecurity tools to help find vulnerabilities in networks and how to protect against them better. For example, in the honeypot we used we deployed it to port 80, when the attacker tried to access our fake server we were notified. We also deployed palto alto firewall to create our private and secure network. For an attack, we also used password crackers like john the ripper. This project taught us how to breach networks as a team.
Network security architecture is the planning and design of the camp.pdfaquazac
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.
In This PDF We discuss about how a firewall protects against the hackers. Techno Edge Systems LLC occupies a stateful services of Firewall solutions Dubai. For More Info Contact us: +971-54-4653108 Visit us: https://www.itamcsupport.ae/services/firewall-solutions-in-dubai/
CISA GOV - Seven Steps to Effectively Defend ICSMuhammad FAHAD
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 securityCTi Controltech
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
Industrial control systems may be at least, or even more, vulnerable to intrusion and malicious attack than you desktop PC. The National Cybersecurity and Communications Integration Center outlines seven basic steps you can take to harden your industrial control system against intrusion and mischief.
This paper presents seven strategies that can be implemented today to counter common exploitable weaknesses in “as-built” control systems. Length is 6 pages.
NCCIC - Seven Steps for Achieving Cybersecurity for Industrial Control SystemsMiller Energy, Inc.
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 CyberattackCTi Controltech
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.
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ANSWER QUESTIONS AND RESPOND TO BOTH Your CISO was very.docx
1. ANSWER QUESTIONS AND RESPOND TO BOTH PEERS!!!! Your CISO was
very happy with the
ANSWER QUESTIONS AND RESPOND TO BOTH PEERS!!!!Your CISO was very happy with
the recommendations that you made in Week 3. They have accepted your recommendations
as valid, but have requested additional information on the firewall solution. The CISO is now
asking for:Firewall best practices that you will implement to ensure confidentiality,
integrity, and availability (CIA, page 6, first mention in textbook).The best firewall to
support his requirement for detailed logging.The firewall type.Your plan for managing
it.RESPOND TO ANDREWWell no firewall is going to be able to ensure that confidentiality,
integrity, and availability (CIA) will be protected on its own. The firewall is just part of the
holistic security architecture. Confidentiality has to do with data privacy, the benefit a
firewall has on this aspect is the ability to stop network traffic from untrusted sources into
the network, fighting off things like phishing attacks. Conversely it can also be a screen to
the internal network by not allowing certain information leave a local area network (LAN).
Firewalls that are acting in other capacities such as a gateway also ensure that information
is not accessible between two separate networks in a LAN. In terms of integrity I honestly
don’t see firewalls as being able to provide much. Data encryption, hashing, checksums,
digital signatures all ensure data integrity. A firewall, as far as I’m aware, has no method of
data integrity verification. The best I can offer is from the reading where a firewall can be
configured as a fail-safe so if there is a breach it stops allowing traffic to traverse. Please let
me know if I am mistaken. Looking at availability, this is a firewalls bread and butter, acting
on a deny by default allow by exception method. Firewalls monitor traffic between LANs
and WANs based off of the configuration.Looking at best practice for firewalls keeping the
CIA triad in mind we need to first assess the network and determine firewall placement.
Typically one is going to go at the gateway to the internet and act as our first defense. The
bastion host idea is something I would implement to thwart all well-known malicious
signatures, stop sketchy requests and connections. I would also configure a demilitarized
zone for all public facing servers to protect internal LANs. Finally, within the LAN I would
set up firewalls as necessary between departments where simple access control may not be
effective. I would focus on the outbound connections and ensure that rules are configured to
stop traffic leaving the network that may be dangerous in an external agencies hands.The
best type of firewall for defense of the internal network is the next generation firewall
(NGFW). Typically these come with numerous other functions that affirm the defense in
2. depth concept and provide a one size fits most. NGFW provide packet filtering, built in
intrusion prevention systems (IPS), built in sandboxing, and large malicious traffic
signature libraries. They allow for administrators to have visibility over users, hosts,
networks, and devices; they can pinpoint where breaches occurred and they will work on
applications and web traffic alike (Cisco, 2022). NGFWs also come with the ability to learn
and establish baselines for normal network traffic to identify anomalies and provide
warnings. They can analyze patterns to identify issues or at least notify the administrators
of what’s going on. Third party services will offer cloud space for monitoring and push
updates to clients when libraries are updated with new attack signatures automatically.I
would recommend any Cisco commercial product, as they have a simple and effective
method for all aforementioned characteristics of firewalls to include logging.In managing
the firewall I would start with policy, a subsection in the overall security policy.
Configuration rules and set up instructions with all of the pertinent information to include
OS type and year and service pack information. It will address the log monitoring and
review procedures with the responsible parties indicated. A clear logical diagram of where
hardware and software firewalls reside. I would also ensure that risk decisions are
annotated, for example the security team suggested a newer bastion host and management
declined, I want all of that documented. The last piece from a management perspective is all
transactional data for who did what on the software or hardware, periodic logging of the
audits, and any recommended changes.RESPOND TO CHRISTOPHERThe principal of
information security is to protect the confidentiality, integrity, and availability of
information from harm. Confidentiality is assurance of data privacy. Integrity is assurance
of data non-alteration. Availability is assurance in the timely and reliable access to data
services for authorized users. It ensures that information or resources are available when
required.Addressing the CISO concern policy there would need to be a firewall policy in
place. Establishing this policy is primordial in the success of a system because it establishes
tangible goals. Employees need to read and understand the policy so it should be relatively
easy to understand.I would implement firewall rules that are relevant to the organization; a
security stance that would benefit the security of the organization without affecting
functionality. Because with too many rules this can easily happen. The rules and protocols
should include communication between internal systems as well as communication with
external systems to determine, chokepoints or weakest points that would need a hardware
firewall in combination with an installed software firewall.The policy also will include a
disaster or compromise procedures to allow for immediate action when or if an intrusion is
detected. Patching and installing latest updates to antivirus, antispyware and other security
tools on all workstations needs to be done consistently. Remote access to the network
should be limited. A good defense-in-depth concept should be applied where use of ISD, IPS,
auditing, NAT, multifactor authentication and secure VPN reimplementation addition, any
unused ports should be disabled. “The ideal firewall solutions for small business integrate a
hardware firewall with software controls into a comprehensive security solution that
includes virtual private network (VPN) support, antivirus, anti-spam, anti-spyware, and
content filtering capabilities” (Cisco). I would recommend using a Cisco firewall as they
have a trusted history and are an industry standard. Support for Cisco products is also
3. readily available. Most firewalls will have some sort of detailed logging capability already
incorporated with the firewall and would use the logging capability that comes with the
Cisco firewall. I would suggest setting up to automatically or manually moving log files from
the firewall to a secure storage location. Vigilant monitoring needs to be performed by the
network administrators to keep the network secure. Using a tool like NMAP would be a
good choice to monitor network traffic. “Nmap is commonly used for security audits, many
systems and network administrators find it useful for routine tasks such as network
inventory, managing service upgrade schedules, and monitoring host or service uptime.”
(NMAP).