I'm planning to run my hostings in the IPV4/IPV6 dual stack mode for a lot of hostings / IPs. Short Apache example:
Listen 220.127.116.11:80 NameVirtualHost 18.104.22.168:80 Listen [2607:ff50:0:21::2]:80 NameVirtualHost [2607:ff50:0:21::2]:80
<VirtualHost 22.214.171.124:80 [2607:ff50:0:21::2]:80>
I think, that's the common and recommended way. But maybe you have some experience with the integration of IPV6 on existing hostings and know a better way?
for example to forward IPV6:80 with iptables to IPV4:80? or to use rinetd?