News Feed
Sections




News Archive
feed this:

Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Enrise Blog:
Debugging Your Web Application with TCPDump and Wireshark
December 14, 2012 @ 12:50:15

On the Enrise blog Tim de Pater has posted about a different sort of method for debugging your web applications - using a combination of Wireshark and tcpdump to monitor your application's input and output.

Everything is running great, until suddenly the monitoring is yelling, the load on several servers is rising, MySQL queries/second and the memcached commands/second going through the roof, Apache processes are higher than usual, and the website starts giving timeouts. Yes, that sucks. Of course you'll first check everything that comes up in your mind like logs, diskspace, swap, etc. But then you come to a point that you really have to dive into it to find the cause of this sudden problem. There are several ways of doing this. One way I learned the last time we were in this scenario is using tcpdump and Wireshark.

He gives you a brief "getting started" tutorial helping you get things set up - dumping the packets with tcpdump and sifting through the results with Wireshark. His examples are more specific to watching for memcache traffic, but it can easily be applied to more general kinds of requests. Screenshots are also included so you can be sure you're seeing the right kind of results.

0 comments voice your opinion now!
tcpdump wireshark debugging memcache application



Community Events





Don't see your event here?
Let us know!


community framework developer podcast opinion introduction release unittest install symfony2 api testing language laravel threedevsandamaybe interview list refactor series code

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework