Network technologies and trends:

Application firewalls


February 13, 2016  8:40 AM

How does Palo Alto Networks Firewall examines an UDP Packet to identify an application?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
application, Application firewalls, DNS, firewall, Next Generation Networking, Packets, Palo Alto Networks, UDP

In the below example, a single DNS query packet is trying to query  the domain www.yasirirfan.com. This packet contains all the information needed by a Palo Alto Network Firewalls to identify an app,  by inspecting the below UDP packet it can determine

September 1, 2015  5:07 AM

What is Single Pass Parallel Processing (SP3) Architecture?

Yasir Irfan Yasir Irfan Profile: Yasir Irfan
Application firewalls, Palo Alto Networks, URL

When it comes to Next Generation firewalls, it’s quite common to see most of the Next Generation firewalls does serial processing, of various policies applied in that particular NG Firewall, which in turn delays the processing of various policies like firewall policy, URL Filtering, IPS, AV, etc....


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