On 2/22/22 16:08, Paolo Galtieri wrote:
On 2/21/22 15:56, Jamie Fargen wrote:
dig 172.16.96.20
Do you mean dig -x 172.16.96.20
dig 1.1.1.1 doesn't return the host name:
dig -x 172.16.96.20
returns
; <<>> DiG 9.16.24-RH <<>> -x 172.16.96.20 ;; global options: +cmd ;; connection timed out; no servers could be reached
but
dig centos8-opstcore-vm.homenet172-16-96.com
returns
;; ANSWER SECTION: centos8-opstcore-vm.homenet172-16-96.com. 259200 IN A 172.16.96.20
Tim is correct.
If you are using a hosted nameserver you will have to contact them and request a PTR record for 172.16.96.20 that points to centos8-opstcore-vm.homenet172-16-96.com.
If you are managing your own nameserver and it uses BIND format you need to have a zone file with the correct nameserver name(s).
$TTL 3d $ORIGIN 16.172.in-addr.arpa. @ IN SOA your.name.server. email.your.name.server. 1645631337 16384 2048 1048576 2560 ;; the @ record is all on one line IN NS your.name.server. 20.96 IN PTR centos8-opstcore-vm.homenet172-16-96.com.
Hope this helps, Mike Wright