我有一台安装了CentOS 7的VPS服务器,我想为IP地址启用SSL,并且我尝试为apache服务器安装了Letsencrypt的certbot,但它给出了一个错误,说明: command: certbot--apache -d xxx.xx.xxx.xx
response: Requested name xxx.xx.xxx.xx is an IP address.The Let's Encrypt certificate authority will not issue certificates for a bare IP