Thanks for installing Rocket.Chat!
You’ll likely want a registered domain name to access Rocket.Chat.
We recommend setting up an A record from your domain to your server’s IP address. Ex: chat.mycompany.com
Rocket.Chat will not work with HTTPS out of the box because certificates are unique for each installation, but with this setup, HTTPS will be available using Let’s Encrypt certificates.
After the Rocket.Chat One-Click is finished and your domain is setup. You will need to login to your VM to finish the setup.