Open DNS Server allow recursive lookups

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Open DNS Server allow recursive lookups

Last Modified: Nov 6, 2013, 7:37 pm

Open DNS Server allow recursive lookups

The error basically means that anyone can use your nameservers to do dns lookups on the internet.
It's considered a security risk to allow recursive lookups on an authoritative server. You can disable the recursion by adding

allow-recursion {localnets; };

to the "options {" section in your named.conf file.

Newer versions of named may require this setting instead

allow-query { any; };
allow-transfer { none; };
allow-recursion { localhost; };
recursion yes;

to allow local recursion, but block remote recursion.