Firewall Wizards mailing list archives
Re: DNS forwarding
From: trall () almaden ibm com
Date: Fri, 2 Oct 1998 23:05:39 -0700
For example if internal host foo.local.net asks for www.external.com, should the firewall forward the query directly to a root server or should it forward the query to, for example, the ISP's cacheing server? << Forwarding consists of sending a recursive query to the forwarder targets. The root servers, in general, do not allow recursive queries (they return a referral instead). Use your ISP's servers (or some other non-root server that supports recursive queries). Tony Rall My thought has always been to forward to the local cacheing server to take load off the root servers (in the example above, surely the info for an appropriate .com server is cached in the ISP's server). I have also heard that all firewalls should forward to the root server.
Current thread:
- DNS forwarding John McDermott (Oct 02)
- <Possible follow-ups>
- Re: DNS forwarding trall (Oct 05)
- Re: DNS forwarding Bill_Royds (Oct 05)
- Re: DNS forwarding Randy Garbrick (Oct 07)