linux内网机器如何查看本地外网ip

参考自：http://www.gaojinbo.com/linux%E5%86%85%E7%BD%91ip%E7%9A%84%E6%9C%BA%E5%99%A8%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E6%9C%AC%E5%9C%B0%E5%A4%96%E7%BD%91ip.html

非常简单，下面一条命令搞定

curl ifconfig.me

完成！

更多命令以及返回结果如下：

Command Line Interface

$ curl ifconfig.me	⇒	221.7.252.66
$ curl ifconfig.me/ip	⇒	221.7.252.66
$ curl ifconfig.me/host	⇒
$ curl ifconfig.me/ua	⇒	Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.79 Safari/535.11 QIHU THEWORLD
$ curl ifconfig.me/port	⇒	31255
$ curl ifconfig.me/lang	⇒	zh-CN,zh;q=0.8
$ curl ifconfig.me/keepalive	⇒
$ curl ifconfig.me/connection	⇒	keep-alive
$ curl ifconfig.me/encoding	⇒	gzip,deflate,sdch
$ curl ifconfig.me/mime	⇒	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
$ curl ifconfig.me/charset	⇒	GBK,utf-8;q=0.7,*;q=0.3
$ curl ifconfig.me/via	⇒
$ curl ifconfig.me/forwarded	⇒
$ curl ifconfig.me/all	⇒	ip_addr: 221.7.252.66 remote_host:  user_agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.79 Safari/535.11 QIHU THEWORLD port: 31255 lang: zh-CN,zh;q=0.8 connection: keep-alive keep_alive:  encoding: gzip,deflate,sdch mime: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 charset: GBK,utf-8;q=0.7,*;q=0.3 via:  forwarded:
$ curl ifconfig.me/all.xml	⇒	<info>     <charset>GBK,utf-8;q=0.7,*;q=0.3</charset>     <connection>keep-alive</connection>     <encoding>gzip,deflate,sdch</encoding>     <forwarded></forwarded>     <ip_addr>221.7.252.66</ip_addr>     <keep_alive></keep_alive>     <lang>zh-CN,zh;q=0.8</lang>     <mime>text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8</mime>     <port>31255</port>     <remote_host></remote_host>     <user_agent>Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.79 Safari/535.11 QIHU THEWORLD</user_agent>     <via></via> </info>
$ curl ifconfig.me/all.json	⇒	{"connection":"keep-alive","ip_addr":"221.7.252.66","lang":"zh-CN,zh;q=0.8","remote_host":"","user_agent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.79 Safari/535.11 QIHU THEWORLD","charset":"GBK,utf-8;q=0.7,*;q=0.3","port":"31255","via":"","forwarded":"","mime":"text/html,application/x