Hide your BIND version

Posted October 18, 2003 by skreuzer in Linux security

Any user can discover the version of bind you are running with the following command: nslookup -q=txt -class=CHAOS version.bin.remote.dns.server. by altering you named.conf file, you can hind this information.

To hide your version of bind, add the following value to named.conf
version "[SECURED]"
in the options section section as follows:

options {
directory "/var/named";
version "[SECURED]";

Restart named.

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