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Colin Walker

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Top Stories by Colin Walker

What could you do with your code in 20 Lines or Less? That's the question I ask (almost) every week for the devcentral community, and every week I go looking to find cool new examples that show just how flexible and powerful iRules can be without getting in over your head. Here are a few more cool iRules from the forums. This week I’ve included one of the simplest, shortest iRules to ever make the 20LoL. It just struck me as something quite useful that I’m willing to bet several people will look at and say “oh, that’s handy” despite the fact that it’s not complex or long.  Keep the code coming. Multiple Matches with Switch http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&postid=60678&view=topic Joe answered a plea for help from the forums that showed how to modify an existing iRule that mad use of switch dropping through to multiple match cases.  This is a ... (more)

Twenty Lines or Less #29

What could you do with your code in 20 Lines or Less? That's the question I ask (almost) every week for the devcentral community, and every week I go looking to find cool new examples that show just how flexible and powerful iRules can be without getting in over your head. 29 editions later and still going strong. The 20LoL is a testament to just how many different things can be done with iRules in just a few lines of code.  Just imagine the possibilities if this were the 30LoL. This week I’ve got three more examples, all from the forums. Today we’ll cover dealing with port numbe... (more)

DevCentral Top5 5/21/2010

Phew! Having DC5 successfully out the door, I'm happy to resume my regularly scheduled programming. I'm back, bringing you my Top5 picks off of DevCentral every week. I'll help you sort through the content pouring across the (now new and improved!) site and offer you a few things that you should definitely check out. It's good to see that the content has still been chugging away even while the team was heads down working on the new site improvements. A big thanks to the awesome community and the extended DC team folks (Lori, Pete and co.) for keeping the lights on. Now that I'm b... (more)

20 Lines or Less #40 – SSL payload searching, user info and ACLs

What could you do with your code in 20 Lines or Less? That's the question I ask (almost) every week for the devcentral community, and every week I go looking to find cool new examples that show just how flexible and powerful iRules can be without getting in over your head. This week we dive into parsing SSL encrypted payloads until a given string is found, logging user login info as it comes across the wire, and enforcing a subsite ACL.  http://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/50/afv/topic/aft/1172756/aff/5/showtab/groupforums/Default.aspx#1175124 In this... (more)

DevCentral Top 5 9/24/2010

Adding to the already wicked cool selection of stuff I get to talk about on a weekly basis, we’re starting to see more and more content submissions outside of normal forums use from our user base. It’s fantastic to see folks contributing articles that share their first-hand experience using F5 gear with others. This week I get a chance to talk about two different MVP contributed Tech Tips that are both interesting as well as educational. It’s been a good week so sit down, buckle up and let’s hit the DevCentral Top 5: It’s Midnight. Do You Know Where Your Tech Support Is? http:/... (more)