its very simple in whm panel or if you dont have whm ask your hosting to put this in for you
apache configeration. includes editor/pre virtualhost includes
add this to make your server work less to achieve more
# Cache Control Settings for one hour cache
<FilesMatch ".(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$">
Header set Cache-Control "max-age=3600, public"
</FilesMatch>
<FilesMatch ".(xml|txt)$">
Header set Cache-Control "max-age=3600, public, must-revalidate"
</FilesMatch>
<FilesMatch ".(html|htm)$">
Header set Cache-Control "max-age=3600, must-revalidate"
</FilesMatch>
# Mod Deflate performs data compression
<IfModule mod_deflate.c>
<FilesMatch ".(js|css|html|php|xml|jpg|png|gif)$">
SetOutputFilter DEFLATE
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4.0[678] no-gzip
BrowserMatch bMSIE no-gzip
</FilesMatch>
</IfModule>
<IfModule mod_expires.c>
# Enable expirations
ExpiresActive On
# Default directive
ExpiresDefault "access plus 1 month"
# My favicon
ExpiresByType image/x-icon "access plus 1 year”
# Images
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
# CSS
ExpiresByType text/css "access 1 month”
# Javascript
ExpiresByType application/javascript "access plus 1 year"
</IfModule>
add this to stop hungry bad bots from attacking your server
one server went from 100% cpu usage from bots trying to get in the server down to 23% in 10 seconds after adding this
add this to htpd,config file may work in above file not shove never tryed it
SetEnvIfNoCase User-Agent "^Wget" bad_bot
SetEnvIfNoCase User-Agent "^EmailSiphon" bad_bot
SetEnvIfNoCase User-Agent "^EmailWolf" bad_bot
SetEnvIfNoCase User-Agent "^libwww-perl" bad_bot
<Location />
Order allow,deny
Allow from all
Deny from env=bad_bot
</Location>
them restart apache
