On Wed, Nov 18, 2009 at 11:03:27PM -0500, Dave Anderson wrote: > On Wed, 18 Nov 2009, stan wrote: > > >On Wed, Nov 18, 2009 at 05:00:02PM -0500, Dave Anderson wrote: > >> On Wed, 18 Nov 2009, stan wrote: > >> > >> >Can anyone xplain this behavior to me? > >> > >> Without access to your nameservers it's not possible to be sure, but see > >> below -- this looks normal to me. > >> > >> >Given the following resolv.conf file: > >> > > >> >r...@pm3fw:root# cat /etc/resolv.conf > >> >lookup file bind > >> >search mcn.chs kapstonepaper.com pm3.charleston.meadwestvaco.com > >> >nameserver 127.0.0.1 > >> >nameserver 10.209.128.20 > >> >nameserver 10.209.128.26 > >> >nameserver 10.209.142.158 > >> > > >> >And: > >> > > >> >r...@pm3fw:root# nslookup > >> >> cvsup > >> >Server: 127.0.0.1 > >> >Address: 127.0.0.1#53 > >> > > >> >Non-authoritative answer: > >> >Name: cvsup.mcn.chs > >> >Address: 10.209.142.151 > >> >> 10.209.142.151 > >> >Server: 127.0.0.1 > >> >Address: 127.0.0.1#53 > >> > > >> >151.142.209.10.in-addr.arpa name = cvsup.meadwestvaco.com. > >> >> exit > >> > > >> >Why does this happen ? And how? > >> > >> You apparently have a system with multiple names and a single IP > >> address. Both cvsup.mch.chs and cvsup.meadwestvaco.com are assigned > >> address 10.209.142.151, but the reverse-lookup entry can't return both > >> names. Given the order of domains in your 'search' directive, > >> cvsup.mcn.chs is looked up first and so is the name that nslookup > >> reports, but cvsup.meadwestvaco.com was chosen as the 'official' name > >> for the reverse lookup by whoever set up your DNS. > >> > >Your analysis is correct, in that thier are multiple names (don't ask :-(). > >I have control of some of the nameservers. They are bind 9 on OpenBSD, can > >you clarify what you mean by "offical name" are you talking about a A > >entry, as oposed to a CNAME entry? > > Sorry I wasn't clear. I was referring to the *.in-addr.arpa 'PTR' DNS > entry which provides the translation from IPv4 address to host name. K, I am starting to understand this now, thequestion is how to fix it. I do have a PTR record in my 10.in-addr.arpa db. If I wan this NOT to be the authortative entry for this IP -> name tarnsaltion, so that an authortative eoll 'pass on by" this Bind instnace and go on to one further down, how can I acomplis htis? >
-- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
