Hi Rob,
Thank you for the reply,
Here below the output of dig command, it looks like is returing the right hostname of ipa server in SECTION SERVER:
#dig -x 172.16.x.y
; <<>> DiG 9.9.4-RedHat-9.9.4-74.el7_6.1 <<>> -x 172.16.x.y
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54279
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;y.x.16.172.in-addr.arpa. IN PTR
;; ANSWER SECTION:
y.x.16.172.in-addr.arpa. 86400 IN PTR ipa.server.example.com.x.16.172.in-addr.arpa.
;; ADDITIONAL SECTION:
ipa.server.example.com. 1200 IN A 172.16.x.y
;; Query time: 0 msec
;; SERVER: 172.16.x.y#53(172.16.x.y)
;; WHEN: Thu Aug 01 10:12:57 EDT 2019
;; MSG SIZE rcvd: 151