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

**URL:** <https://meta.discourse.org/t/use-the-same-user-database-and-login-credentials-in-multiple-discourse-instances/45584>\
**Category:** SSO\
**Created:** [2016 年6 月 12 日 11:53 UTC](https://meta.discourse.org/t/use-the-same-user-database-and-login-credentials-in-multiple-discourse-instances/45584 "2016-06-12T11:53:50Z")\
**Posts on this page:** 1\
**Showing post:** 1

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作者： ![auryn\_macmillan](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/auryn_macmillan/32/56633_2.png) [@auryn\_macmillan](https://meta.discourse.org/u/auryn_macmillan)\
发布日期： [2016 年6 月 12 日 11:53 UTC](https://meta.discourse.org/t/use-the-same-user-database-and-login-credentials-in-multiple-discourse-instances/45584/1 "2016-06-12T11:53:50Z")

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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 those same credentials to log in to all of the others. If a user’s whole profile (trust level, profile detail, pictures, etc) could be synced across each instance, this would be ideal for our use-case.

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_[View the full topic](https://meta.discourse.org/t/use-the-same-user-database-and-login-credentials-in-multiple-discourse-instances/45584)._