no more recursive-clients

David Botham DBotham at OptimusSolutions.com
Thu Oct 30 17:37:12 UTC 2003


bind-users-bounce at isc.org wrote on 10/29/2003 03:17:31 PM:
> I am getting the following error on a DNS caching server:
> Oct 29 12:31:25 ns1 named[21440]: client 209.175.98.2#39641: no more
> recursive clients: quota reached
> I have raised the recursive-clients running on Bind 9.2.0 to 5000:
> options {
>         directory "/etc/named.data";
>         pid-file "/var/run/named.pid";
>         version "version id withheld";
>         datasize 256m;
>         max-ncache-ttl 60;
>         recursive-clients 5000;
> };
> What else can I do to stop the server from getting the quota reached
> error?
> How do I check/stop a DoS if that is what is happening?

Allowing recursion only for client on your network(s) will go a long way 
in limiting DoS attacks.

See "allow-recursion" in the ARM.

Dave...

> 




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