當端口被佔用是，可以使用如下方法進行查找:
[root@engineer /]# netstat -tlunp |grep 443
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 2201/vmware-hostd
tcp 0 0 :::443 :::* LISTEN 2201/vmware-hostd
You have new mail in /var/spool/mail/root
[root@engineer /]# kill -9 2201