[root@LetvWebServer-45C61C etc]# curl members.3322.org/dyndns/getip
xxx.xx.xxx.xxx
[root@LetvWebServer-45C61C etc]# curl ifconfig.me
xxx.xx.xxx.xxx
[root@LetvWebServer-45C61C etc]# ifconfig -a
能查出来内网ip
eth1 Link encap:Ethernet HWaddr E4:1F:13:45:C6:1E
inet addr:10.200.91.43 Bcast:10.200.255.255 Mask:255.255.0.0