DNS setup for GoDaddy
Setup an A record pointing from @ to 184.108.40.206.
Add a subdomain
To add a subdomain, you need to create another A record. For example, I want to setup portal.company.com for my portal. I will add the following record for the subdomain (‘portal’):
Type is A
Host is portal
Points to is 220.127.116.11
As a result, there will be two A records pointing to 18.104.22.168.
Once the DNS is set up, enter the custom domain (ex. portal.company.com) in your app settings (step #2 in help doc below):