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What is HTTP Part II - Underlying Protocols

Posted September 14, 2017 by Jason Rahm

Last week in part one of this series, we took the 50,000 foot view of the HTTP protocol. HTTP defines the structure of message transfer for web resources, but doesn’t have anything to say about or do with the underlying infrastructure (through... Read more

How Containers Scale – Service Mesh versus Traditional Architecture

Posted September 14, 2017 by Lori MacVittie

Containers continue to be a hot topic. Some claim they are on the verge of a meteoric rise to dominate the data center. Others find them only suitable for cloud. And still others are waiting patiently to see if containers is the SDN of app... Read more

Lightboard Lessons: Dynamic AFM Policy Selection Based on Geolocation

Posted September 13, 2017 by John Wagnon

For some web applications, you need a separate network firewall policy for users from different geographic locations.  Using the power of iRules and VIP-targeting-VIP solutions, you can dynamically select an AFM policy based on source IP geolocation. Read more

Automatically Update your BIG-IP Pool Using the Service Discovery iApp

Posted September 12, 2017 by Peter Silva

Let’s look at how to automatically add members to your BIG-IP pool by using the Service Discovery iApp. Whenever you deploy a BIG-IP Virtual Edition by using one of the templates on the F5 Github site, this iApp is installed on the BIG-IP. The... Read more

Nessus 6 XSLT Conversion for ASM Generic Scanner Import

Posted September 11, 2017 by Michael J

Nessus 6 XSLT Conversion for ASM Generic Scanner Schema Import Read more

Apache Struts 2 FreeMarker tag Remote Code Execution (CVE-2017-12611)

Posted September 10, 2017 by Gal Goldshtein

In the recent days, another 0-day remote code execution vulnerability in Apache Struts 2 has been published (CVE-2017-12611). This time the vulnerability’s root cause is not stemming from a bug in the Struts 2 framework, but a feature of the... Read more

What is HTTP?

Posted September 07, 2017 by Jason Rahm

tl;dr - The Hypertext Transfer Protocol, or HTTP, is the predominant tool in the transferring of resources on the web, and a "must-know" for many application delivery concepts utilized on BIG-IP HTTP defines the structure of message... Read more

Apache Struts 2 REST plugin Remote Code Execution (CVE-2017-9805)

Posted September 06, 2017 by Gal Goldshtein

In the recent days, a new critical Apache Struts 2 vulnerability was announced which allows remote attackers to execute arbitrary commands on the server. The original post (S2-052) has not published exploit details yet, most probably to allow... Read more

Answers / discussion

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OpenSSL and Heart Bleed Vuln

Asked 4/7/2014

by squip

21 Votes

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iRule Event Order - HTTP

Asked 11/8/2013

by What Lies Beneath

19 Votes

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TCP Traffic Path Diagram

Discussed 5/13/2014

by What Lies Beneath

12 Votes

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F5 Big IP File Locations

Asked 8/24/2009

by JohnCzerwinski

10 Votes

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A Protocol Profiler In a Few iRules

Discussed 11/12/2014

by Thomas Schockaert

8 Votes

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APM with google authenticator

Discussed 7/9/2016

by Patrik Jonsson

7 Votes

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