解决httpd: Could not reliably determine the server's fully qualified domain name

用vim打开 /usr/local/apache2/conf/httpd.conf

将里面的 #ServerName localhost:80 注释去掉即可。

再执行 /usr/local/apache2/bin/apachectl start

然后curl localhost:80 ，如果显示 “It works！” ，即表示apache已安装并启动成功。