I know that it is possible to run multiple instances of discourse on the same server using a multisite setup. I’m wondering if it would be possible for multiple instances of discourse to make use of the same user database? So that a user could sign-up on any one of several different forums and use t…

This would require us to use some 3rd party authentication correct? We’re quite happy with Discourse authentication, would it be possible to use Discourse’s Auth from one instance as SSO for the other instances?

You would be using your own auth, from your master website. (Do you not have a parent or master website people already log in to?)

No, the only portion of our website that requires auth is Discourse.

Aha in that case one of them will have to be the master auth, I suppose. Any thoughts on this @sam ?

Sure, Discourse can act as an SSO provider for another Discourse instance.

Awesome, is there any documentation that for setting something like this up?

Follow the breadcrumbs :bread: [afbeelding] Use Discourse as an identity provider (SSO, DiscourseConnect) Integrations So you want to use Discourse as an identity provider for your own web app? Great! Let’s get started. Enable DiscourseConnect provider setti…

I still think this is gonna be weird since one of the Discourse sites – and how do you tell the user which one is the “right” one – will be the master auth site. There still needs to be an understandable hierarchy here of some kind.

I’ve just enabled it SSO on our test forum, using our main forum as the SSO provider. Even without explicitly stating the hierarchy (which may be necessary if we start implementing multiple instances) signing in seems pretty user friendly.

Use the same user database and login credentials in multiple discourse instances

Support SSO

fefrei (Felix Freiberger) 12 juni 2016 om 13:28 2

You can set up single sign-on between both instances.

Topic		Antwoorden	Weergaven
SSO between two Discourse instances Support	1	762	11 augustus 2020
Can two Discourse Instances share and use One Database? Support	1	192	9 augustus 2024
SSO and multiple discourse apps SSO	3	1458	29 januari 2020
Discourse to discourse SSO Feature	8	1111	28 mei 2018
WP Multisite with multiple Discourse instances WordPress	6	1039	23 februari 2021

Use the same user database and login credentials in multiple discourse instances

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