Not sure if I missed something when I set up the PTR records for the hostnames on FreeIPAv4. We use FreeIPAv4 to manage the identity and policy on the LAN.

When I conducted the reverse DNS lookup against the reverse zone 2.10.10.in-addr.arpa, some returned domain names were appended with the reverse zone name, while others were not.

Here are two examples. returned the hostname correctly, while returned the hostname appended with the reverse zone name.

[root@rep02.ipa.example.com ~]# nslookup
> nginx02.prd.example.com

Name:   nginx02.prd.example.com
> name = nginx02.prd.example.com.2.10.10.in-addr.arpa.
> tomcat.sbx.example.com

Name:   tomcat.sbx.example.com
>    name = tomcat.sbx.example.com.

Can anyone shed some light on this? I tried several other tools, like dig and host, but I got the same results.

1 Answer 1


You missed the trailing dot in the ptr record value in the bind zone file.

  • Yeah, you are right! what a shame! Mar 11, 2021 at 19:53
  • thank you very much. Mar 11, 2021 at 20:00

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