rDNS multiple IPs same interface

Question

I have three different IPs on the same interface:

eth0      192.168.1.103
eth0:0    192.168.1.104
eth0:1    192.168.1.105

and I have the following in /etc/hosts:

192.168.1.103  host.example.com  host
192.168.1.104  host.example.com  host
192.168.1.105  host.example.com  host

Now, I'm wondering what are the proper entries for my 192.168.1.rev, so far I have it as:

103 IN PTR host.example.com.
104 IN PTR host.example.com.
105 IN PTR host.example.com.

Answer 1

That is the correct structure, although you'll probably want to put trailing dots on the rrdata so it doesn't append the zone name (host.example.com.1.168.192.in-addr.arpa).