Powerdns setup

If you need to set up PTR (rDNS) records, this is usually done with your network provider.

 

When you have an address allocation from ARIN, you need to list your own nameservers as authoritative for your reverse addr zones, then just create the PTR records as @Th0m said. @Taleman wrote a nice dns tutorial, which I believe covers that if your using ISPConfig.

 

You simply as the zone(s), then add PTR records. Use the aforementioned dns tutorial, which is readily found searching the forum here.

 

To clarify, the tutorial is for ispconfig, but explains reverse dns and shows how to set it up with screenshots of the fields; just translate the info to the power dns admin interface.

 

Likewise I don't mean to be rude, but I've never heard of powerdns admin before, so completely unfamiliar with it's documentation or resources, and found this guide including a screenshot example of adding a reverse zones in less than 20 seconds: https://kifarunix.com/easily-install-and-setup-powerdns-admin-on-ubuntu-20-04/ Surely there is more info specific to powerdns admin in further searching if you need it, but it really is as simple as creating the reverse zone, and adding your desired PTR records to it. A web search for something like "understanding reverse dns" shows pages of links explaining the concepts (eg. the naming of your in-addr.arpa reverse zone).

 

You would add 254 PTR records, one for each IP. (Or 255 if you prefer.)

 

I'm not familiar with webmasters.com, which could probably explain why I don't understand what you mean there. To handle the reverse dns for your addresses, you will need to have at least 2 nameservers, both/all of which must have a name in dns pointing to their ip address(es) (ie. A and AAAA records); you cannot use CNAME for your nameservers (neither MX nor NS can point to a CNAME alias).

 

Add A records for your nameservers at webmaster.com (and AAAA if you have ipv6 added) prior to delegating your reverse zones to those nameservers at ARIN. (It's possible you could set those in ARIN first, I don't know, but it's safe to do it the other way.)