Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Is reverse DNS required for a domain

Is reverse DNS required for a domain

Is reverse DNS required for a domain


I'm trying to set up a DNS for my own domain. I think I have the forward one working but then I got to the reverse domain I ran into some questions.

I only got one IP address from my ISP and am not in charge of a whole C-net that the reverse would cover. Should and could I set up a reverse domain? Do I need to have it at all? Is it the responsability of my ISP?


RE: Is reverse DNS required for a domain

You cannot (in theory) have a reverse domain that doesn't cover a whole class network. And yes, it's your ISP's responsibilty. Just ask them to do it.


Henrik Morsing
Certified AIX 4.3 Systems Administration
& p690 Technical Support

RE: Is reverse DNS required for a domain

Classless Reverse Zones do in fact exist and you need to work with your ISP to find out a couple of things.
    1. Can they delegate that IP to you for reverse
    2. What do they want you to use as a filename

Once they have delegated that IP to you then you simply create the correctly named reverse zone.

Now because you have only one IP it would not be practically possible to do this. If you had a /30 or above it would be possible.


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close