1.ServerTokens Prod
ServerTokens Prod 显示“Server:
Apache”
ServerTokens Major 显示 “Server:
Apache/2″
ServerTokens Minor 显示“Server:
Apache/2.2″
ServerTokens Min 显示“Server:
Apache/2.2.17″
ServerTokens OS 显示 “Server: Apache/2.2.17
(Unix)”
ServerTokens Full 显示 “Server: Apache/2.2.17 (Unix)
PHP/5.3.5″ (如果你这指定任何的值，这个是默认的返回信息)
2. ServerSignature off
原文：http://www.cnblogs.com/beilei123/p/3523195.html