In the last time I am back to a lot of server development. This also means a lot of database engineering. For the most the time I have used PHPMyAdmin for nearly every I have to work with a MySQL database. After a while a got a little bit disappointed, because PHPMyAdmin is a kind of bloated and sometimes it’s just take to long to perform a simple operation. continue reading…
Just for fun I looked at the headers generated by website I made and where I am responsible for the administration of the Apache server I discovered this:
HTTP/1.1 200 OK Date: Sun, 06 Sep 2009 11:44:56 GMT Server: Apache/2.2.8 (Ubuntu) DAV/2 SVN/1.4.6 X-Powered-By: PHP/5.2.4-2ubuntu5.7 Connection: close Content-Type: text/html
Actually I think no one needs to know which PHP version is running on this machine and that there also a Subversion is running on that machine. Even the name of the operating system and the version of the Apache is not needed in most cases.
So how suppress these information?
In my last post I wrote about some problems that I had with my virtual server that freezes under heavy load. The improvements I suggested worked really nice but the server still sometimes freezes – not often as before but it still happened. So I “googled” around and also asked at ServerFault.com.
It seems that keeping up the the apache mpm_prefork and mod_php will not be the solution anymore. Most sites suggested to use mpm_worker instead, because it uses less memory (and my problem was, that my Apache consumed all my memory). On the other hand there could be some problems with thread-safety, but I liked to give it a try. PHP will not me used as an Apache module any more. Instead we will run PHP as a FastCGI script. continue reading…
On the last blog I wrote for was an article which described who to install eAccelerator on a Ubuntu server. As this blog entry had a lot of visits I decided to put it on this blog again:
PHP is not the fastest scripting language, that truly a fact. Except from optimizing the scripts there a few possibilities to speed everything up. One is to install a byte code optimizer and cache on your server. They cache the byte code created by the PHP parser and try to optimise it. So every time some one requests for a page on your server the script does not have to be parsed again. This brings a speedup of 120 – 250% depending on you script. There are several byte code caching program available, the one I like most is eAccelerator. Sadly eAccelerator is not available through the Ubuntu repositories so you have install them yourself. Here is a short description how to archive this!
continue reading…