Apache 配置檔案:
$ sudo vi /etc/apache2/conf-enabled/security.conf #Ubuntu 20.04
$ sudo vi /etc/apache2/apache2.conf #Debian/Ubuntu systems
$ sudo vi /etc/httpd/conf/httpd.conf #RHEL/CentOS systems
新增/修改/附加下面的行
ServerTokens Prod
ServerSignature Off
PHP: