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How to make a quick dns reverse check on a /24 in bash

Brain 0verride

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Sometime when you need to map networks, for example when you gain access to a LAN  server without security tools on it, it can be useful to retrieve reverses dns for a specified internal PI. You can do it directly in bash with this short command line (example for :  seq 1 254 |xargs -I{} -n 1 host 192.168.1.{}

It also works fine on a public PI of course. Don't hesitate to share your tips too :)

Christophe Casalegno

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