I have a problem creating a reverse DNS record.
First of all, I have created a new zone. IP was aaa.bbb.ccc.ddd and Domain was ccc.bbb.aaa.in-addr.arpa.
Second, I have edited the just created zone and I added a PTR record:ddd IN PTR domain.com, TTL 14400
After I saved it and go again to edit the zone, I can see that system added .ccc.bbb.aaa.in-addr.arpa. to the record.
Anyway, after 24 hours, I connected to the console using SSH and run this command:
dig -x aaa.bbb.ccc.ddd I saw this output:
; <<>> DiG 9.11.4-P2-RedHat-9.11.4-16.P2.el7_8.6 <<>> -x aaa.bbb.ccc.ddd ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10280 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;ddd.ccc.bbb.aaa.in-addr.arpa. IN PTR ;; ANSWER SECTION: ddd.ccc.bbb.aaa.in-addr.arpa. 3600 IN PTR unknown.ord.scnet.net. ;; Query time: 11 msec ;; SERVER: 220.127.116.11#53(18.104.22.168) ;; WHEN: Sat Aug 15 17:33:52 -04 2020 ;; MSG SIZE rcvd: 91
As you see, this value is shown for the PTR record:
unknown.ord.scnet.net and I cannot get rid of it.
What is wrong?