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hpr4041 :: Using grepcidr to find IPs in a netblock

An introduction to the grepcidr command, which makes finding IPs from a netblock in log files easier

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Hosted by Deltaray on 2024-01-29 is flagged as Clean and is released under a CC-BY-SA license.
cli, command line, linux, sysadmin, networking. 1.
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Duration: 00:11:20


grepcidr is usually available from your distribution's default repositories, so on Debian based systems you could install it with:

sudo apt install grepcidr

Example of grepcidr use:

grepcidr /var/log/syslog

You can read more about CIDR notation on the Wikipedia page for CIDR


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Comment #1 posted on 2024-02-04 15:37:42 by Kevin O'Brien

Great show

I really enjoyed this show. This is a useful tool.

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