Welcome!

Wielding the Power of the Network to Better Applications Everywhere

Colin Walker

Subscribe to Colin Walker: eMailAlertsEmail Alerts
Get Colin Walker via: homepageHomepage mobileMobile rssRSS facebookFacebook twitterTwitter linkedinLinkedIn


Top Stories by Colin Walker

Last week I wrote about challenging the new FSEs that were here attending boot camp.  I got to throw together some requirements for the engineers to cut their teeth on, so to speak, and learn about iRules and at least as importantly how to make use of the resources they have available to them.  I wanted to present both the challenge as well as my take on the solution somewhat iRule::ology style, but broken down by requirement rather than line by line of code.  Even though the iRule is created to solve a fictional list of requirements, there’s still some value in seeing how to go about each of these things, so let’s take a look at the challenge and then my take on the solution. First, the requirements: Client HTTP request must be sent to a specified URI based on the CNAME requested. Over 1000 unique CNAMEs to be matched. If no match is found, respond to the user (f... (more)

What Could You Do with Your Code in 20 Lines or Less?

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... (more)

DevCentral Top5 05/01/2009

From Web Accelerator to iRules to the release of the new Management Pack, this week's Top5 has it all. As always, there was plenty going on this week on DevCentral. These are my picks that you've just got to check out. Whether it's because they're incredibly useful, interesting, or just plain cool, all of these are worth a read, or listen, as the case may be. Here's this week's Top5: Announcing the Release of the F5 Management Pack for Microsoft System Center Operations Manager 2007 http://devcentral.f5.com/weblogs/sfisher/archive/2009/04/28/announcing-the-release-of-the-f5-mana... (more)

Countdown to Interop: T minus 4

It’s the second day of my Interop countdown, and there’s plenty of buzz coming from those getting ready for the show. I had a meeting with one of the people here helping to manage the show from our end to discuss time-frames and scheduling, when to be where, topics I’m going to talk about, who else is going to be there at similar times … even what shoes to wear. Apparently that’s caused many a newcomer to the convention scene grief.  Lucky for me, I’m a seasoned vet and merely grimaced at the “he bought new shoes for the show” story, knowing just how bad of an idea that really w... (more)

E-Mail is Bigger Security Risk than Twitter

Summer vacations, travel and distractingly favorable weather may interrupt the normal work weeks for some, but they can't stop the content. DevCentral has been alive and well through these sunny days thanks to the blogs, docs and media cruising through from various contributors. With many irons in the fire, plans on the drawing board and other assorted clichés at work helping to drive the "Next Big Thing" for the DevCentral team, you can only expect to see things scale upward and onward in terms of content pacing. I'll try to help you keep up. To that end, here's this week's Top5... (more)