Search Again: Re: Setup QuickDNS From: andrew kagan Date: Thursday, July 29, 1999 Time: 12:59:00 pm Ahhh....yes I forgot to ask the last part of the question! If you have two A records pointing to the same IP, let's say for mail and DNS, which one is more important to use in the PTR record? Does it matter if there's no PTR record for DNS? Andrwe ----- Original Message ----- From: Farokh Irani <farokh@mcf.com> To: QuickDNS Talk <quickdns-talk@lists.menandmice.com> Sent: Thursday, July 29, 1999 8:41 AM Subject: Re: Setup QuickDNS > >andrew kagan said: > > > > >shouldn't one use a CNAME instead of an A record for the second record? I > > >thought it was not recommended to use multiple A records pointing to the > > >same IP? > > > > >It is kind of ironic, considering that both DNS and BIND and DNS Expert > >complain about using a CNAME for a mail server record, however what if > >you run DNS and Mail on the same machine? Are you supposed to have an A > >record for both,(hence pointing to the same IP) which is also a no, no? > > > >jer > > You must have an A record for MX entries. If you don't, some mail > servers will refuse to connect. I'm not sure who/what is telling you > that multiple A records pointing to the same IP is a no-no. The only > issue is that the reverse lookup on the IP can only return one name, > and that could be an issue. However, what I did on my DNS/EIMS > machine is set the PTR to return the mail name, since a lot of mail > servers now do reverse lookups to combat spam. Haven't had a problem > since. > > Farokh > > -------------------------------------------------------------------------- -- > Check out my WWW server at http://www.mcf.com/ > Suzuki Cavalcade/VX800 rider; list owner for suzuki-l, sheltie-list, others. > Send mail to listserv@mcf.com with the command "help" (without the quotes). > Or check out http://lists.mcf.com/ >

Messages In This Thread: Setup QuickDNS by Charles Heizer on Jul 28, 1999 at 5:00:00 pm Re: Setup QuickDNS by Men & Mice Support on Jul 29, 1999 at 6:20:00 am Re: Setup QuickDNS by andrew kagan on Jul 29, 1999 at 11:31:00 am Re: Setup QuickDNS by Mia''s Virtual Post Office on Jul 29, 1999 at 12:27:00 pm Re: Setup QuickDNS by Farokh Irani on Jul 29, 1999 at 12:41:00 pm Re: Setup QuickDNS by Mia''s Virtual Post Office on Jul 29, 1999 at 12:55:00 pm Re: Setup QuickDNS by andrew kagan on Jul 29, 1999 at 12:59:00 pm Re: Setup QuickDNS by Michael Ayotte on Jul 29, 1999 at 2:49:00 pm Re: Setup QuickDNS by Charles Heizer on Aug 10, 1999 at 3:01:00 pm Re: Setup QuickDNS by Men & Mice Support on Aug 10, 1999 at 3:31:00 pm Re: Setup QuickDNS by Paul Willis on Aug 10, 1999 at 4:13:00 pm