Hostname as a common name in node certificate

General
1

As per docs server certificate generation , common name in the node certificate is node I.P. address. I tried generating node certificate with commonName = node_host_name and installed it on node
Yugabyte node failed to restart with this certificate. Certificate works fine if it is generated with commonName = node IP address

Does Yugabyte node certificate accepts hostname in common name? or it must be IP address only? Any suggestion?

2

YugabyteDB does support hostnames or IPs in the common name (CN) field. If applicable, you can also put the IP in the Subject Alternative Name (SAN), if it is a fixed address in your network.
The CN or SAN must match the specification of rpc_bind_address when you start your yb-master and yb-tserver processes. So if you want to use CN = hostname, then you should have the hostname in the rpc_bind_address flag.