What are the exact steps DNS based multi-tenancy?
I’ve seen this document Setup Multitenancy. Are there other changes I need to make besides what is written in this documentation?
If strictly speaking of the setup for DNS based muti-tenancy - the linked instructions is all you need.
Other steps may be needed depending on your hosting environment, like opening up ports in your firewall, etc…
Good luck.
I’ve seen that adding the host name to your site_config.json file is needed.
For more info: How to Enable Developer Mode in Frappe