Search Again: Re: Reverse Domain Problem From: Men & Mice Support Date: Saturday, November 13, 1999 Time: 1:17:00 am At 9:27 AM -0600 11/12/99, Steve Dannaway wrote: >NEWBIE OVERLOAD! > >How on earth do I check (and change) the delegation on the reverse >zone?! Use any DNS Query tool, starting at the root servers and working your way down. I use DNS Expert (of course), but you could also use the Un*x command-line tool nslookup, or any other such tool that allows you to make arbitrary DNS queries and directly view the responses. The delegation looks like this: from f.root-servers.net: 167.144.in-addr.arpa. NS ns.ualr.edu. 167.144.in-addr.arpa. NS passage.uark.edu. from ns.ualr.edu: 167.144.in-addr.arpa. NS ns.ualr.edu. 167.144.in-addr.arpa. NS ns2.ualr.edu. (Note: different records than the root server. This is a potential problem, but since both passage.uark.edu and ns2.ualr.edu are acting as secondary servers, it does not cause any functional problems.) Unfortunately, 25.167.144.in-addr.arpa is not delegated by these servers. from ns.dina.org: 25.167.144.in-addr.arpa. NS ns.dina.org. 25.167.144.in-addr.arpa. NS ns2.dina.org. This won't be true until these same records are added to the 167.144.in-addr.arpa zone file on ns.ualr.edu. Unfortunately, it looks like maybe you don't have the entire class C subnet; if this is the case, you may have to look at a more complex solution, called "classless delegation". Classless delegation is described in detail in RFC 2317 <http://www.faqs.org/rfcs/rfc2317.html>. Warning: this RFC is full of jargon, and can be downright confusing the first few times you read it. Talk to whoever assigned you your addresses regarding how they want to do this. >This is occurring on almost all of my domains including the ones that >have not been sitting anywhere other than my DNS. > >Example 1: russellville.org has not been on a machine other than mine >Example 2: arcf.org has been transferred to my DNS from our campus DNS Actually, one of these names has a proper PTR record on ns.ualr.edu: 64.25.167.144.in-addr.arpa. PTR russellville.dina.org. Such records will need to be removed after the delegation is put into place. ____________________________________________________________________ Chris Buxton cbuxton@menandmice.com Men & Mice http://www.menandmice.com Makers of: QuickDNS Pro

Messages In This Thread: Reverse Domain Problem by Steve Dannaway on Nov 11, 1999 at 9:54:00 pm Re: Reverse Domain Problem by Men & Mice Support on Nov 12, 1999 at 7:37:00 am Re: Reverse Domain Problem by Steve Dannaway on Nov 12, 1999 at 3:27:00 pm Re: Reverse Domain Problem by Men & Mice Support on Nov 13, 1999 at 1:17:00 am