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find out public ip address by using any host that have 'efingerd -n'

Terminal - find out public ip address by using any host that have 'efingerd -n'
finger @www.linuxbanks.cn | grep -oE '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}' | head -n1
2010-05-05 14:58:55
User: zhangweiwu
Functions: finger grep head
-4
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find out public ip address by using any host that have 'efingerd -n'

This is useful when you got a reserved IP address like 192.168.0.100 and want to find out what IP address is used to access the Internet. You have to know a server with 'efingerd -n' configured, like www.linuxbanks.cn as above.

Other method to find out this information are for example access www.tell-my-ip.com and grep the output. The finger method have the advantage that it is easy to deploy a service like www.tell-my-ip.com, as you only need to get efingerd installed.

Add to favourites | Report as malicious

Alternatives

There are 4 alternatives - vote for the best!

Terminal - Alternatives

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What others think

why is this practical at all?

curl icanhazip.com
Comment by spiffwalker 107 weeks and 1 day ago

Grep the archive:

http://www.commandlinefu.com/commands/view/2966/return-external-ip

Comment by dooblem 107 weeks and 1 day ago

Your point of view

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