Secure Apache
pico /etc/apache2/conf.d/security
ServerSignature Off
ServerTokens Prod
/etc/init.d/apache2 restart
Secure PHP
pico /etc/php5/cgi/php.ini
pico /etc/php5/apache2/php.ini
expose_php = Off
disable_functions = show_source, system, shell_exec, passthru, exec, phpinfo, popen, proc_open
magic_quotes_gpc = Off
safe_mode = Off
register_globals = Off
allow_url_fopen = Off