no more recursive-clients

Michael Breton mbreton at commtel.net
Thu Oct 30 19:13:40 UTC 2003


> -----Original Message-----
> From: dvonlanken at illinois.net [mailto:dvonlanken at illinois.net]
> Sent: Wednesday, October 29, 2003 3:18 PM
> To: comp-protocols-dns-bind at isc.org
> Subject: no more recursive-clients
> 
> 
> 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?

You should allow recursive queries ONLY from your own network.

Michael Breton
Commtel


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