Need Help with Reverse DNS

I've created all of the reverse DNS records I need, but I can't get the system to respond to them.

most of the forums post complain and say that the ISP controls reverse, however, I'm trying to reverse none internet addresses..

[root@ns1 init.d]# nslookup Server: Address:

** server can't find NXDOMAIN [root@ns1 init.d]# dig

; <<>> DiG 9.9.4-RedHat-9.9.4-18.el7_1.1 <<>> ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28675 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ; IN A

;; AUTHORITY SECTION: . 10800 IN SOA 2015061800 1800 900 604800 86400

;; Query time: 40 msec ;; SERVER: ;; WHEN: Thu Jun 18 12:04:02 CDT 2015 ;; MSG SIZE rcvd: 114



It's true that in most cases, the ISP handles reverse DNS. If you're certain that the owner of the IP's has delegated that responsibility to you, it's possible to do that though.

Can you describe the process you used to setup the reverse DNS?

Normally, it's a matter of going into Webmin, and using the BIND module to create a reverse zone for the IP range. And then in that zone, add PTR records that point to the hostnames they should resolve to.

I created and empty zone for the forward and reverse. Then added a PTR record with A record.

So are your DNS clients that are trying to lookup this address using your nameserver, or a public or ISP-provided nameserver? Because they will only be able to perform the lookup correctly if they use your server.

The schools is using a virtumin machine locally and resolving dns from that for the local not internet addresses.

Are you sure that the /etc/resolv.conf file on the machine doing DNS lookups contains only the IP of the Virtualmin system?

Generated by NetworkManager

search nameserver

Generated by NetworkManager

search nameserver

That seems OK, assuming this is on the Virtualmin system itself. Did you restart BIND after adding the reverse zone?