changing the site_url dynamically

Hi

I need to be able to have 1 modx install the ability to run 2 domains. Can anybody tell me how I can do this please? Is it just a case if dynamically changing the site_url (config)?

please advise.

thanks

unfortunitly the only article I can see is once from about 5 years ago

https://forums.modx.com/index.php/topic,30520.msg185334.html

ContextRouter should be able to handle this:
http://modx.com/extras/package/contextrouter

First time I ran multiple sites from one MODX install I set it up manually based on information from the documentation or Bobs Guides. Second time I used ContextRouter.

If you run MODX 2.3.0 or 2.3.1 you might need to check ContextRouter is confirmed to work.

I think Gateway Manager is pretty similar:
http://modx.com/extras/package/gatewaymanager

Actually, there may be a bug in Gateway Manager on 2.3.1

https://forums.modx.com/thread/94270/gatway-manage-not-working-in-2-3-1#dis-post-510974