Problems on Multi-IP Host

[g0lgs]

I tried this script yesterday on my Ubuntu 20.04 Hosting Server which has multiple (4) IPV4 and multiple IPV6 (/64) addresses available on the same eth0 interface, but found that it only seems to work if I configure the first IPV4 address and does not appear to work if I allow it to enable IPV6 (as I only have IPV4 available away from the hosting server itself I can't really tell).

When IPV6 is enabled 'netstat -ln' shows listening on IPV4 but not listening on IPV4 (Hence I cannot get a connection).

When IPV4 is enabled using the first available IP4 address 'netstat -ln' shows as listening on 0.0.0.0:1194 - so presumably should respond on any of my available IPV4's but changing the generated .ovpn file to use any of the others appeared to cause a problem.

As each of the IPs on my server has a DNS entry I would really like to use a DNS Name instead of IP in the generated .ovpn is this possible ?