Thread:Project:Support desk/A lot of refreshes DDoS's my Wiki

For security matters, I won't post any URL's to the Wiki. It's a pain to (temporary) solve this problem.

My Wiki used to run on a server with Nginx as its web server, I never had any problems with that. Now my Wiki is moved to a DirectAdmin + HTTPD web server, and now the horror starts!

Every time the Wiki gets overloaded (either by many people on it (10 or more at the same time), or by lots of refreshes at the same time), my Wiki, as well as any other website on the same server, gets DDoS'd. This results in the server to be unable to read any content of MySQL, and a restart of HTTPD service is required to solve the problems. After so many researches, I'm now completely sure that it has something to do with MediaWiki software. I don't know exactly what, but I know it's something from the said package.

OS: CentOS 6

Panel: DirectAdmin

MediaWiki version: 1.18.2 (1.18.0 also had this problem)

PHP: 5.3.10 (apache2handler)

MySQL: 5.5.20