How to sort ip addresses

I don't know where I found this solution but it is very easy to remember.

$ cat ip_file
$ sort -t. +0n -1n +1n -2n +2n -3n +3n ip_file
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About Milosz Galazka

Milosz is a Linux Foundation Certified Engineer working for a successful Polish company as a system administrator and a long time supporter of Free Software Foundation and Debian operating system.