allow-recursive question

Mariano Cunietti mcunietti at
Wed Mar 30 09:28:53 UTC 2005

I have a problem with bind 9.2.1: I get thousands of these entries in
/var/log/messages saying "no more recursive clients: quota exceeded".

I run DNS service for an ISP with 5000 users. As far as I know, the
default limit for concurrent recursive clients is set to 1000. 

Should I disable recursive queries for users outside my networks? Would
there be any side effect? Which is a common policy for ISP's about
allowing external users to submit recursive queries?

Thanks in advance


Mariano Cunietti
System Administrator
Enter S.r.l.
Via  Stefanardo da Vimercate, 28
20128 - Milano - Italy
Tel.  +39 02 25514319
Fax   +39 02 25514303
mcunietti at -
Gruppo Y2K -

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