Search Again: Re: Problem with Server getting a name From: Philip Chonacky Date: Tuesday, November 13, 2001 Time: 7:00:50 am I would try setting the dns server on the EIMS machine to the dns server of your ISP, and then see if the problem goes away. That would identify whether QDNS is responsible or not. Also, just to check, the EIMS server has tcp/ip set to "always loaded". I did have a similar problem with my last ISP where reverse lookups didn't always go through correctly for a single IP on my network, but I never resolved why, and it was sporadic enough that I just let it go. Hope this helps. /philip At 8:43 AM -0600 11/13/01, US Billing_John wrote: > > From: Philip Chonacky <pc@barrett.com> >> Date: Tue, 13 Nov 2001 09:25:21 -0500 >> To: US Billing_John <john@usbilling.com> >> Cc: "QuickDNS Talk" <quickdns-talk@lists.menandmice.com> >> Subject: Re: Problem with Server getting a name >> >> What does the EIMS server use for it's DNS server? If it queries your >> provider's server, it should return the reverse lookup correctly. > >It is querying my QDNS server running on another machine, with the provider >server as the backup. What is odd, is that when I assign 216.141.141.237 as >the mailserver's IP, EIMS will find its name (albeit the wrong name). >Changing to the actual IP x.253 and it does not. Very strange. > >> >> Are you running the EIMS server on the same box as the QDNS server? > >NO > >> >> Also, you can do the reverse DNS for a classless network, the provider has to >> make some entries that will delegate the reverse DNS for those addresses to >> your server. There is an RFC you can reference (2317) which describes one >> method of delegating reverse DNS. > >Yes - I am aware of this, but the provider didn't want to complicate things >for the moment. > >> >> I am in a similar situation. I have a block of 32 addresses and my provider >> delegates the reverse to my own server. >> I have EIMS 3.0.3 running on the same box as QDNS. I have the startup items >> named so that QDNS starts before EIMS and the dns server setting is >> "127.0.0.1". >> >> Even if EIMS can't find it's name, it will assume the default, or remember >> what it was last. What is important other nodes can resolve the name of your >> mail server from the address. >> >> Hope this helps. >> >> /Philip >> >> >> >>> I have posted this question to the QDNS and EIMS list because of the >>> potential overlap. Yesterday I noticed that when EIMS v3.03 starts it does >>> not return a valid host name. I am running QDNS Pro for my primary, and >>> DNSExpert reports no problems. I changed to one of my unused IPs and >>> restarted EIMS, and the server reported the correct name. I have a /26 >>> network so the provider is doing reverse DNS for me, and I do primary with >>> QDNS pro. >>> >>> what is strange is that using a query tool the IP address (216.141.141.253) >>> does report the name of the server "mail.cybernetvillage.com". I am >>> confused as to what would cause the EIMS program to not resolve this IP? >>> >>> -- >>> John Bernhoft >>> US Billing, Inc. >>> ************************** >>> http://www.usbilling.com >> >> >> -- >> >> ___________________________________________________ >> Philip Chonacky, IT Manager: Barrett Communications > > 139 Main St. Cambridge, MA 02139 USA > > ph: 617.577.9500 fx: 617.577.1010 > > pc @ barrett.com -- ___________________________________________________ Philip Chonacky, IT Manager: Barrett Communications 139 Main St. Cambridge, MA 02139 USA ph: 617.577.9500 fx: 617.577.1010 pc @ barrett.com

Messages In This Thread: Problem with Server getting a name by US Billing_John on Nov 13, 2001 at 6:03:12 am Re: Problem with Server getting a name by Philip Chonacky on Nov 13, 2001 at 6:25:48 am Re: Problem with Server getting a name by US Billing_John on Nov 13, 2001 at 6:44:27 am Re: Problem with Server getting a name by Philip Chonacky on Nov 13, 2001 at 7:00:50 am Re: Problem with Server getting a name by Mia''s Virtual Post Office on Nov 13, 2001 at 8:59:30 am