Network technologies and trends:

firewall


February 11, 2016  8:14 PM

Cisco ASA Firewalls can be exploited by sending crafted UDP packets

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Cisco, Cisco ASA, firewall, IPsec, IPsec VPN, LAN, UDP, vulnerabilities

Yesterday I received an email from Cisco Security Advisories about the critical vulnerability related IKE version 1 and IKE version 2 code of ASA Software which could empower an unauthenticated remote attacker to reload or even execute a code remotely on a affected ASA firewall.

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February 8, 2016  1:04 PM

What is Palo Alto Networks App ID?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
application, DNS, firewall, Gartner, IPS

When it comes to treating an Application every vendor has a way of treating an App, most of the traditional firewalls treats Applications mostly on port numbers. For example traditional Firewalls treats DNS as port 53 application. And a rule  is configured in traditional firewall to allow port 53...


December 31, 2015  5:20 AM

What is Palo Alto Security Policy –  Intrazone rule ?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Business, DMZ, firewall, Palo Alto Networks, Security policy

When comes to Palo Alto Networks Firewalls, they work on the concept of zones not the security levels. They are no different when compared to other leading Firewall vendors. While designing the Network one must focus on number of zones the business is looking for and what kind of scalability the...


September 19, 2015  4:43 PM

Palo Alto Networks Firewall Configuration Management Auditing

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Auditing, Configuration management, firewall, router, Troubleshooting

Palo Alto Network Firewall offers configuration-auditing feature, using this feature one can compare any two configuration files and see the difference. Palo Alto firewalls after comparing any two configuration files, highlights the differences using color coding schemes. Following color codes are...


September 9, 2015  7:11 AM

How to access Palo Alto firewall for the first time?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
firewall, HTTP, Palo Alto Networks, SNMP, Telnet

Palo Alto firewalls comes with a built in out of band management interface, labeled MGT and a serial console cable. One can access the Palo Alto firewall by connecting his/her laptop with an IP address in 192.168.1.0/24 subnet to the management interface and can access the firewall using a...


September 3, 2015  5:43 AM

Palo Alto Network Firewall Architecture – Know how

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
firewall, IPsec, NAT, Palo Alto Networks, SSL

Palo Alto takes a good approach in designing the architecture for their next generation firewalls. Palo Alto offers processors dedicated to security function that work in parallel. Palo Alto firewall contains separate Control Plane and Data Plane. By separating them Palo Alto is ensuring that...


June 10, 2015  5:35 AM

Palo Alto releases PAN-OS 7.0

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
firewall, Gartner, Palo Alto Networks, Policy, Security

Palo Alto Networks one of the leaders in Gartner’s Magic Quadrant for next generation firewall released their new version of PAN-OS 7.0 trail. Currently PAN-OS is available to Palo Alto customers who possess a valid support...


May 25, 2015  4:43 AM

What is Cisco IOS Software Checker?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
ASA, Cisco, Cisco Nexus, firewall, IOS, Nexus, Security, Switches

We are all leaving in the age, where Network Security is given upmost importance; almost every major Organization does have a good Security team who are even responsible for looking at the vulnerabilities reported in their Network Security products. Cisco does have a great tool called

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May 20, 2015  8:33 AM

What is Cisco Switch Selector?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Cisco, Collaboration, firewall

When it comes to selecting a Cisco Switch either a new Switch or need an upgrade an existing Cisco Switch one needs to consider many things be it the feature set, type of modules needed, wither it need be a stackable or modular switch.One has to go through many parameters, which may some times...


April 27, 2015  6:14 PM

Is Juniper Networks® SRX5800 Services Gateway the fastest firewall?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
100 GbE, CTO, firewall, Juniper Networks, Service providers

Juniper Network claims, with addition of new hardware updates for the

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