nfs挂载问题

挂载nfs：

[root@host-172-16-0-2 ~]# mount -t nfs 172.20.0.1:/sms /smsback/
mount.nfs: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
mount.nfs: an incorrect mount option was specified

按照提示进行操作

[root@host-172-16-0-2 ~]# mount -t nfs -o nolock 172.20.0.1:/sms /smsback/
mount.nfs: Operation not permitted

经查找网上有说用这种办法可以挂载成功，但是我还是挂载不上

[root@host-172-16-0-2 ~]# mount -o resvport 172.20.0.1:/sms /smsback/

最后经过不懈的努力，终于找到了问题，防火墙的问题

[root@host-172-16-0-2 ~]# /etc/init.d/iptables stop