View source for Optimize VPS webserver with low memory RAM

This guide is to help run a VPS with 512MB RAM as a webserver. The default settings in Apache/PHP/MySQL are not optimized for a VPS much less one with 512MB RAM. This guide will reduce your overall memory usage of your LAMP server.
[[Category:Linux]]
'''If you are still using 512MB VPS you should switch. This guide is now defunct'''


==Apache==
CentOS location: '''/etc/httpd/conf/httpd.conf'''


*Change the settings for the prefork module 
 <IfModule prefork.c>
 StartServers 1
 MinSpareServers 1
 MaxSpareServers 4
 ServerLimit      15
 MaxClients       15
 MaxRequestsPerChild 2000
 </IfModule>


==PHP==
CentOS PHP config location: '''/etc/php.ini'''


*Change max memory limit (use 96MB for heavy php sites)
 memory_limit = 64M

*Change max execution time
 max_execution_time = 60

*Change max input time
 max_input_time = 60

*Change max upload size
 upload_max_filesize = 16M

*Change max upload size
 post_max_size = 16M

*Disable PHP safemode
 safe_mode = Off

*Disable MySQL safemode
 sql.safe_mode = Off

*Enable zlib Compression (compresses site output)
 zlib.output_compression = On