Reverse DNS

Forums › Spark New Zealand (including Skinny and BigPipe) › Reverse DNS

chriswiggins

413 posts

Ultimate Geek

#29905 22-Jan-2009 23:24

Will telecom do reverse dns? would be nice if they did

Ragnor

8219 posts

Uber Geek

Trusted

#191425 23-Jan-2009 00:41

Isn't reverse dns pretty pointless thesedays given an single ip address can actually point to a multitude of different domains either on different ports or host headered?

PenultimateHop

637 posts

Ultimate Geek

Trusted

#191430 23-Jan-2009 02:12

chrisjunkie: Will telecom do reverse dns? would be nice if they did

Evidence is that yes, they will, if you have a Static IP.

Ragnor: Isn't reverse dns pretty pointless thesedays given an single ip address can actually point to a multitude of different domains either on different ports or host headered?

No, it isn't pointless.

Shash

157 posts

Master Geek

#191480 23-Jan-2009 10:43

Yes Telecom do revers PTR -give your "hostname.domainname.co.nz" with your static ip and account number.This is very easy to request nowadays with Telecom

nate

6473 posts

Uber Geek

Retired Mod

Trusted

Lifetime subscriber

#191592 23-Jan-2009 15:49

PenultimateHop: No, it isn't pointless.

I'm curious as to why you would want to do this.

PenultimateHop

637 posts

Ultimate Geek

Trusted

#191600 23-Jan-2009 16:11

nate:
PenultimateHop: No, it isn't pointless.

I'm curious as to why you would want to do this.

Matching A and PTRs is good practice for many things, including mail servers, if you happen to be running one from your DSL connection. It is particularly important to match your SMTP hostname (i.e. what is sent in the HELO/EHLO) with the PTR, and the A record with the PTR.

Of course, there are other reasons (such as vanity, or professional pride) people may wish to have a matching A/PTR set which is not the usual ISP hostname.

raytaylor

4014 posts

Uber Geek

Trusted

#191625 23-Jan-2009 17:03

PenultimateHop:
nate:
PenultimateHop: No, it isn't pointless.

I'm curious as to why you would want to do this.

Matching A and PTRs is good practice for many things, including mail servers, if you happen to be running one from your DSL connection. It is particularly important to match your SMTP hostname (i.e. what is sent in the HELO/EHLO) with the PTR, and the A record with the PTR.

Of course, there are other reasons (such as vanity, or professional pride) people may wish to have a matching A/PTR set which is not the usual ISP hostname.

Spam / Junk filters will also do a reverse dns query to check that everything matches up too. Its also helpful for finding out what domains or how full your shared hosting server is.

Ray Taylor

There is no place like localhost

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shame2

19 posts

Geek

#191632 23-Jan-2009 17:37

since i have static ip ive sent mail to telecom for ptr or delegation
and they replied

Our Response 23/01/2009 10:27
Dear John

Thank you for your email.

If you have a static IP provided by telecom, I can arrange a PTR record for you. Please provide your static IP and the PTR record you require.

Kind regards

Terry
Customer Care Online

yeah .. goodbye boring *.adsl.xtra.co.nz reverse lookup

Equinox IT

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chriswiggins

413 posts

Ultimate Geek

#191696 23-Jan-2009 23:33

Rang up customer service today. The lady seemed to slightly understand what I wanted and then elevated me. The guy I spoke to was very knowledgeable and quickly set up the PTR for me. It was a quick, hassle free thing to do.

Reason I want to do it: Looks better in a tracert (geek pride

) and of course the SMTP side of things. In fact Telecom has a page that says their junk email filter likes PTR records that are properly assigned.

Cheers
Chris

jfnz

211 posts

Master Geek

Trusted

#191791 24-Jan-2009 13:00

Yep, to clarify you can call the BBHD on 0800 22 55 98 and they will transfer you through to Complex Technical Support to run the request, though they should really train the first level reps as it's not all that difficult a request to manage.

Please note: Any posts, comments, or contributions in this forum are posted by me as an individual acting in my own right and do not necessarily reflect the views of any company I work for, clients I've consulted for, or anyone else.

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