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v11.1–Add Signatures or Checksums to iRules via an iApp

iApps, introduced in v11, have a primary function in controlling the object creation and management for an application delivered by BIG-IP. As discussed previously, however, anything that can be accomplished in TMSH can be done in an iApp, so wha... Read more
1 Review

One Time Passwords via an SMS Gateway with BIG-IP Access Policy Manager

One time passwords, or OTP, are used (as the name indicates) for a single session or transaction.  The plus side is a more secure deployment, the downside is two-fold—first, most solutions involve a token system, which is costly i... Read more
Average Rating: 4.9
7 Reviews

Monitor Your iRule Performance with iControl and Google-O-Meter Charts

iRule performance has long been a question our users have asked about.  We get questions all the time about how to determine what impact a specific iRule has on the normal operation of the BIG-IP’s they are running on.  The question is a... Read more
0 Reviews

Unbind your LDAP servers with iRules

LDAP is one of the most widely used authentication protocols around today. There are plenty of others, but LDAP is undeniably one of the big ones. It comes as no surprise then that we often hear different questions about using F5 technology with... Read more
2 Reviews

Can iRules fix my cert mismatch errors?

SSL encryption as a means of security on the web isn't a new concept. We've talked about it here on DevCentral many times, and it's as pedestrian a concept as a corndog on the boardwalk to most internet users. We've talked about... Read more
0 Reviews

RADIUS Load Balancing with iRules

What is RADIUS? “Remote Authentication Dial In User Service” or RADIUS is a very mature and widely implemented protocol for exchanging ”Triple A” or “Authentication, Authorization and Accounting” information. RADIUS is a relatively simple,... Read more
1 Review

Radius Aware Load Balancing via iRules

RADIUS is very popular authentication method that is being widely used in amongst some of the top service providers around the world, not to mention in deployments ranging from enterprise corporate environments to clustered mail systems and back.... Read more
0 Reviews

iRule Security 101 - #05 - Avoiding Path Traversal

Path Traversal is an attempt to access files and/or directories stored outside web root folder. If successful this could allow malicious users to view content they were not intended to see, execute programs that have lax permissions and were... Read more
0 Reviews

iRule Maintenance Windows

A fun, but not well known, feature on BIG-IP is the Statistics Profile. This tech tip is the second in a series on how the Statistics Profile and iRules, when working together, can save time, productivity, and your sleep! The Scenario: Imagine... Read more
Average Rating: 4.9
3 Reviews

Offload Authentication with iRules

As the applications being driven by webservers become more and more complex, Applications Developers are always looking for ways to increase efficiency or do away with unneeded processing time. One of the ways that I believe that Applications can... Read more
1 Review