Hi,
can we host our own into aws server? as I tried using this 
https://rocket.chat/docs/installation/paas-deployments/aws/
and I am stuck in step 4 because my domain.com is under host A and wanted to setup subdomain.domain.com to use this chat? is that possible? or ip based would be okay
so my website will be on host A and the chat will be on aws server? is that possible and any references?
thank you