Domain setup for one bench two sites

Hello,

I have a bench, with two sites on it.

Site1 ipv4:8000
Site2 ipv4:9001

For site 1, I have made the A records for app.site.com pointing to ipV4 Address. I have installed ssl certificate for apps.site.com
mapped apps.site.com → ipv4:8000

WHat do I need to do, to make sure I have correct DNS setitings for site 2.