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View Full Version : Heads - UP PTR Records


nudetravel
09-14-2001, 10:38 PM
Ok, nobody has responded to my last two posts. Maybe if I show some good citizenship I will get some help next time I need it.

I run my own DNS server on my raq. I ahve only one IP. Recently I had a problem with a domain not resolving. I had my primary domain, domain2 and then added domain3. Domain and domain2 worlkd fine, but I couldn't get domain3 to resolve to save my life. Domain3 wouldn't even ping when I telnetted into the raq and pinged it from inside. I checked, rechecked dns and soa settings.

Then, on a whim, I deleted the ptr records for the domain and **Kazaam** it worked.

I don't know why this is as domain2 has ptr records - I am going to do some experimenting and if I figure it out I'll elt you all know.

Chicken
09-14-2001, 11:13 PM
Sometimes overly technical questions have a tough time (with replies). You can search the cobalt mailing list, though sometimes this is difficult. Your questions also happened around the time of a rather sad incident, and I know I've been on the forums less lately. I'll try to see if I can help the other posts...

seattlite
09-15-2001, 02:15 AM
yeah, I havent checked in as much as I usually do as of late...

jks
09-15-2001, 08:13 AM
Originally posted by nudetravel
Ok, nobody has responded to my last two posts. Maybe if I show some good citizenship I will get some help next time I need it.

I run my own DNS server on my raq. I ahve only one IP. Recently I had a problem with a domain not resolving. I had my primary domain, domain2 and then added domain3. Domain and domain2 worlkd fine, but I couldn't get domain3 to resolve to save my life. Domain3 wouldn't even ping when I telnetted into the raq and pinged it from inside. I checked, rechecked dns and soa settings.

Then, on a whim, I deleted the ptr records for the domain and **Kazaam** it worked.

I don't know why this is as domain2 has ptr records - I am going to do some experimenting and if I figure it out I'll elt you all know.

I think you may have confused some things. A domain can't have PTR records -- they are only for IP addresses. Each should have one (and just one) PTR record associated.

The reasons why your domain didn't work could be many:

* You had a syntax error in your PTR record, that stopped the zone from loading before you deleted the PTR record

* The zone was cached somewhere, and it was reloaded when you deleted the PTR records

* You forgot to update the serial number when adding A records, but remembered it after deleting the PTR records