Network technologies and trends:

September, 2015


September 25, 2015  7:27 PM

CCNA Security version 3.0 is here

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CCIE, CCNA, CCNA Security, Cisco, Cisco Press, cloud, Security, Virtualization

Cisco announces changes in the current CCNA Security exam, with new announcement Cisco ensured to include many newer technologies, which are widely deployed in today;s Enterprise Networks. The...

September 23, 2015  8:24 AM

How to start the Journey of CCDE?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CCIE, Cisco

After completing my CCIE R&S I was wondering what to do next? Thought of continuing the journey with one more CCIE, but was not convinced of having multiple CCIEs, yet thinking what should be my next move. Started focusing on other vendors, technologies and certifications and was quite happy...


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 17, 2015  9:46 AM

Three golden rules for designing a Networks

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Hardware, LINKS, Network design, Routing protocols

When it comes to either designing a network  or upgrading an existing network with new design most of us think from technical prospective like what kind of hardware we need, what routing protocols we need to use , what type of links needed etc. This comes true for those who are deeply involved in...


September 17, 2015  5:06 AM

How to ace Palo Alto Networks Certified Network Security Engineer (PCNSE6) exam?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Palo Alto Networks

It’s a known fact that there are very limited resources one can avail for the preparations of the Palo Alto Networks Certified Network Security Engineer (PCNSE6) exam.  One has to rely completely on Palo Alto resources,...


September 16, 2015  9:18 AM

What is Palo Alto Networks Certified Network Security Engineer (PCNSE6) exam?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Configure, Design

Recently I took Palo Alto Networks Certified Network Security Engineer (PCNSE6) exam and by the grace of Almighty I passed the exam. The Palo Alto Networks Certified Network Security Engineer (PCNSE6) happens to be one of...


September 13, 2015  5:18 AM

Configuration Management – A holistic way to manage Palo Alto Firewall Configurations

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Configuration management, Firewalls, FTP, TFTP, XML

Palo Alto Network Firewalls are quite different and have powerful options compared to their competitors.  The flexibility and the ease they offer is quite impressive. Managing the Configurations of the Palo Alto firewall is one such example which proves to be very handy. One can access...


September 12, 2015  10:38 AM

What is the difference between Candidate configuration & Running Configuration in Palo Alto Firewalls?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
CLI, configuration, Firewalls, Palo Alto Networks, router, virtual

Palo Alto Networks Firewalls comes with following config types

  • Candidate Configuration
  • Running Configuration
When ever some one creates a new policy or changes the configuration settings of an existing Security Policy or any other parameters like zone, Virtual...


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 7, 2015  5:51 AM

Palo Alto Networks Virtual Platforms are good for Securing East –West traffic    

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
AWS, Data Center, KVM, OpenStack, Palo Alto Networks, VMs, VMware

With the dominance of Virtualized environments like VMware, KVM, Citrix SDX and Amazon AWS, there is a challenge of securing East-West traffic. Like many other security vendors Palo Alto does offers various Virtual Platforms to protect virtualized data center and East-West traffic. Palo Alto...


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