Invalid command ‘SSLProtocol‘, perhaps misspelled or defined by a module not included in the server

在配置apache HTTPS证书时，出现如下报错：

Invalid command 'SSLProtocol', perhaps misspelled or defined by a module not included in the server

• 错误原因：
  未启用Apache配置文件的mod_ssl.so模块。
• 解决方案：

安装mod_ssl.so模块

yum install -y mod_ssl

重启apache服务

systemctl restart httpd

问题解决