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I'm setting up rDNS for use with a SolusVM server. I used PowerDNS on two servers for a slave and a master, and set up the MySQL replication successfully. When viewing the MySQL records table, I see the SOA, NS, and PTR records all there.

I've created two A records (rdns1.example.com, rdns2.example.com) and pointed them to the master and slave respectively.

I updated the IP reverse DNS nameservers on arin.net to point to the rdns1.example.com and rdns2.example.com

If I run 'host 146.71.84.4', it returns:

 Host 4.84.71.146.in-addr.arpa not found: 2(SERVFAIL)

If I run 'dig -x 146.71.84.4', it returns:

 ; <<>> DiG 9.9.5-9+deb8u10-Debian <<>> 146.71.84.4
 ;; global options: +cmd
 ;; Got answer:
 ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41971
 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

 ;; AUTHORITY SECTION:
 .                       73327   IN      SOA     a.root-servers.net. nstld.verisign-grs.com. 2017041600 1800 900 604800 86400

 ;; Query time: 14 msec
 ;; SERVER: 50.116.35.5#53(50.116.35.5)
 ;; WHEN: Sun Apr 16 09:07:33 UTC 2017
 ;; MSG SIZE  rcvd: 115
Liam Smith
  • 33

1 Answers1

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Neither nameserver was responding to queries at all.

Ensure that the nameserver software is running (check logs if not starting) and that no firewall is interfering.

Håkan Lindqvist
  • 36,421