1. go into your httpd.conf (example for redhax/centos: /etc/httpd/conf/httpd.conf)
2. setting two apache directives: ServerTokens and ServerSignature . Basically to provide only a minimal amount of information we will set this in the main config to:


ServerTokens ProductOnly
ServerSignature Off

after this, restart your apache (/etc/init.d/httpd restart)