There's another way. Partial Class-c reverse DNS can be delegated. I didn't think that was the case, so when I asked my ISP (Sprint) to set up reverse for my 63.171.93.0/27 with host01.visioncomm.net, host02.visioncomm.net, host03 ... host31.visioncomm.net, they said they'd be happy to, but wouldn't I rather do it myself?
So, I now do authoritative, delegated, reverse DNS for my own eighth of a class-C. Now addresses like those assigned to mail.visioncomm.net, router.visioncomm.net, weather.visioncomm.net etc. resolve as one would expect, and as I control. I don't know HOW they do it, but it's working fine<g>. hth Dan Barker -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ken Weise Sent: Monday, April 25, 2005 9:19 AM To: [email protected] Subject: RE: Re[2]: [IMail Forum] PTR records on our own Class C Sorry all, I was out of town over the weekend. I had previously checked on ARIN, and saw that Valueweb is authoritative for our IP block. However, they say that since they don't manage the domain (econocaribe.net), they can't create the PTR records for it. I've been back and forth with them many times, and have made no headway. That's why I came to the list with the question, because I wanted to make sure I was interpreting the info correctly. I was in a hurry in the original email, and didn't specify that I had already saw this info, that was my fault. Anyway, thanks to everyone for confirming what I thought, now I have to figure out how to make Valueweb understand that they can create a PTR record for us. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sanford Whiteman Sent: Friday, April 22, 2005 7:28 PM To: Bill Landry Subject: Re[2]: [IMail Forum] PTR records on our own Class C > Yes, but it's the wrong answer that sends someone off on an > unnecessary wild-goose chase. . . Not truly a wild-goose chase, as the ISP -- usually much more responsive by phone than a registrar -- would be able to rapidly discern the extenuating routing circumstances and would direct the client to the proper place. And I'd say that Darin's 999/1000 is actually much too low. It's probably more like 99,999/100,000 times that a person who. . . a) doesn't have a PTR for their mailserver in April 2005; b) doesn't know that forward DNS is unrelated to reverse DNS; c) exhausts the DNS resources on the net without finding guidance there; d) posts to an IMail list with this FAQ, without noting that they have already consulted their bandwidth provider, as the archives (until now) always recommend; and e) is the sole IT person charged with solving this problem . . . does not own their Class C. This is not meant as a slur on Ken, who certainly has skills outside this arena that we do not, but based on experience. --Sandy This email is intended solely for the intended recipient. If you are not the intended recipient, then any copying of this email is strictly prohibited. If you received this message in error, then you should immediately notify the sender by telephone or return email and then delete it from your computer. To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
