启动apache遇到错误：httpd: Could not reliably determine the server's fully qualified domain name
[root@server httpd-2.2.4]# /usr/local/apache/bin/apachectl start
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
查看端口被谁占用了 netstat -pan | grep 80 然后删除占用端口的进程 kill 端口号 最后重启一下就ＫＯ了！
默认的访问根目录在/var/www/html下面