User session limiter does not work

1

Hello everyone. It has been over a month that I am trying to set user session limit for 1 session on keycloak 17. I’ve tried every combination I have found on internet, be it from forum or official documentation, still it does not work. What can be the cause? Thank You

2

Without knowing what you did/tried, we can’t help that much.
If you can post the config of your auth flow here, perhaps(!) we can help.

3

Sorry can’t post images, but I made config like the one in documentation Server Administration Guide , however I’ve tried many different combinations I can’t even recall them all, I had session limiter in every subflow, but keycloak keeps adding new sessions.

4

KC17 user session limiter does not work · keycloak/keycloak · Discussion #25334 · GitHub here are the images of my config

5

Found this flow that helped me:

SSO Version

  • From the Keycloak sidebar, click Authentication.

  • Click New on the Flow Definition page.

  • Name the new flow, set the flow type to generic and click Save.

  • Click Add Execution on the Actions menu.

  • Click User Session Count Limiter if the limit should be applied to a single user. Click Realm Session Count Limiter if the limit should be applied to a group of users.

  • Return to the flow page.

  • Set the execution you just created to Required and click Config from the Actions menu in the same line.

  • Create a name for the execution and configure the authenticator. For User Session Count Limiter, you can select Deny new session or Terminate oldest session as the desired behavior.

  • From the sidebar, click Identity Providers and click your SSO provider.

  • Open the Post Login Flow menu and click the flow you just created.

  • Click Save.