Tuesday, May 29, 2007
Bejtlich - versions
I really enjoyed reading this post from Richard Bejtlich. There is one piece that makes it almost perfect:"Web 2.0: this is what is here, with more on the way -- essentially indefensible applications all running over port 80 TCP (or at least HTTP) that no developer really understands and for which no one takes responsibility"I saw once a perfect example of this "no developer really understands". I was called on a weekend by a developer who was trying to deploy his new application into production. Obviously, the usual suspect for the problems he was facing was the firewall.I spent almost an hour to understand not only where the application was running, but also its architecture. It end up that he wasn't aware that his web service needed a HTTP server! :-) After solving that specific problem, I scheduled some basic networking classes with that group of developers the next week. I noticed how deep they knew about Java, and other programming stuff, but they didn't have a clue about the data flow of their applications in a network perspective. Nice context to work with, specially if you you're trying to control the information flow on your network.
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