Search Again: Re: Forwarding Question From: Men & Mice Support Date: Wednesday, September 24, 2003 Time: 4:09:12 pm It would cause looping. A query doesn't have a way to indicate that it was forwarded, so the name server can't tell who originated a particular query. ____________________________________________________________________ Chris Buxton Men & Mice Customer Support Specialist Making DNS Easy At 4:20 PM -0600 9/24/03, Mac McClellan wrote: >There is a firewall NAT issue as well as the performance problem. The >forwarding worked very well going one way but I want to make sure that >it will not cause a problem going both ways. So I guess I'm still not >clear if that will cause a looping problem or does BIND know that if it >did not originate the query to not forward it? > >Mac > >>>> cbuxton@menandmice.com 9/24/2003 4:05:32 PM >>> >A better question is, do you need to forward at all? > >Usually, even from behind a firewall, a DNS server can resolve >outside domain names just fine. It's possible to configure a firewall >to block outgoing queries, and in such cases, forwarding is necessary >- you would forward to a server that can get through the firewall. > >Also, in cases where there's a performance problem (i.e. the server >can't resolve names fast enough to suit client web browsers), >forwarding can often alleviate the problem. >____________________________________________________________________ >Chris Buxton Men & Mice >Customer Support Specialist Making DNS Easy > >At 3:36 PM -0600 9/24/03, Mac McClellan wrote: >>I have two sets of DNS servers. Each set has a Primary and >Secondary: >> >>ns1.nameservercorporate.com >>ns2.nameservercorporate.com >> >>and >> >>ns1.nameserverclient.com >>ns2.nameserverclient.com >> >>The scenario is this... >> >>ns1 and ns2.nameserverclient.com have forwarders that point to ns1 & >>ns1.nameservercorporate.com. Can I also put forwarders on ns1 & >>ns2.nameservercorporate.com pointing to ns1 & >ns2.nameserverclient.com >>or would that create a "DNS loop"? >> >>Thanks! >> >> >> >>Mac McClellan >>Sr. Network Engineer >>Nu Skin Enterprises, Inc. >>75 West Center Street >>Provo, Utah 84601 >>801-437-7295

Messages In This Thread: Forwarding Question by Mac McClellan on Sep 24, 2003 at 2:46:36 pm Re: Forwarding Question by Men & Mice Support on Sep 24, 2003 at 3:05:57 pm Re: Forwarding Question by Mac McClellan on Sep 24, 2003 at 3:23:52 pm Re: Forwarding Question by Men & Mice Support on Sep 24, 2003 at 4:09:12 pm