Ubuntu下apache启动出错：Permission denied: make_sock: could not bind to address

在Ubuntu下安装了Apache2，启动时竟然报错，提示：Permission denied: make_sock: could not bind to address

报错提示权限不够，用su命令切换到root，输入密码就OK了，至于有以下提示

注：若用su命令切换到root时提示su认证失败，请参考《Ubuntu输入su提示认证失败的解决方法 》

 

httpd: Could not reliably determine the server’s fully qualified domain name, using localhost.localdomain for ServerName

倒关系不大，因为我是在本机运行的，没有绑定域名。