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DevCentral Live Tour – It’s a Wrap!
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After a week of presentations throughout the Middle East and Europe by Joe & Jeff, I took my turn on the tour, beginning with a couple days in Johannesburg, South Africa, and finishing up the week with a few stops in Europe as well. Today’s session in Antwerp, Belgium, also featured the iRules Contest grand prize winner in the partner division, Sake Blok, with a fine presentation on writing clean iRules and a walk through of his winning iRule. Oh, and he delivered his presentation from...
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Interview with iRule Contest Finalist Henrik Gyllkrans
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Jeff and Joe take some time after our presentation in Stockholm to talk with iRule Contest finalist Henrik Gyllkrans about writing fast iRules, his company Advanced IP, and his winning cookie tampering iRule. Technorati Tags: F5,DevCentral,iRules,Stockholm,Henrik Gyllkrans,Joe Pruitt
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v10.1 - iRules rate limiting with the table command
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One of the new features added to BIG-IP in version 10.1 was the table command, implemented in iRules. Of all the new features I've seen, I have to say this one is easily one of my favorites. Hopefully by now you've seen Spark's amazing series of articles on the table command and have gotten some sort of understanding of what it is and can do. If not, I highly recommend checking out the first of his many fantastic docs here, to get started, then browse through them all when you can. They&rsqu...
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How to Make mailto Safe Again
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Using HTTP headers and default browser protocol handlers provides an opportunity to rediscover the usability and simplicity of the mailto protocol.
Over the last decade it's become unsafe to use the mailto protocol on a website due to e-mail harvesters and web scraping. No one wants to put their e-mail address out on teh Internets because two minutes after doing so you end up on a trillion SPAM lists and the next thing you know you're changing your e-mail address.
But people stil...
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How to Gracefully Degrade Web 2.0 Applications To Maintain Availability
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I haven’t heard the term “graceful degradation” in a long time, but as we continue to push the limits of data centers and our budgets to provide capacity it’s a concept we need to revisit.
You might have heard that Twitter was down (again) last week. What you might not have heard (or read) is some interesting crunchy bits about how Twitter attempts to maintain availability by degrading capabilities gracefully when services are over capacity.
“Twitter Down, Overwhelmed by Whales”...
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