Linux – Hide Bind version

If we would like to hide version of our bind server and make it harder for bot to sniff what version you use (assuming you always update 😉 ) you can make it by editing file: /etc/bind/named.conf.options:

#lets add this into 'options {'
version "unknown";
#or use other text in brackets

Restart service:

service bind9 restart

Use dig to check that version you use now:

dig @example.com -c CH -t txt version.bind

 

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