In order the find the IPv6 address(es) of your server, you can use the Console as described bellow.
1. 1. Log in into the NatVPS Portal
2. Choose the desired service in the Client Area or Dashboard.
3. As shown in the screenshot bellow, click on Console so that the console window appears.
4. Type ip a and as shown bellow, under venet0 interface, you can find the the IPv6 address(es) of your server.