/etc/passwd
/etc/php5/apache2/php.ini
/etc/php5/cli/php.ini
/etc/apache2
/var/log/apache
/etc/krb5.conf
/etc/apache2/conf.d
/etc/apt/apt.conf
/usr/lib/apache2/modules
/etc/apache2/mods-enabled/....
apache2ctl graceful
apache2ctl restart
chkconfig httpd on