# Multiple users for private Docker registry?

**URL:** <https://forums.docker.com/t/multiple-users-for-private-docker-registry/57212>\
**Category:** Docker Hub\
**Created:** [August 27, 2018, 10:48pm UTC](https://forums.docker.com/t/multiple-users-for-private-docker-registry/57212 "2018-08-27T22:48:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![collab1](https://avatars.discourse-cdn.com/v4/letter/c/9dc877/32.png) [@collab1](https://forums.docker.com/u/collab1)\
**Post date:** [August 27, 2018, 10:48pm UTC](https://forums.docker.com/t/multiple-users-for-private-docker-registry/57212/1 "2018-08-27T22:48:59Z")

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I have a private Docker registry running.

Any user should be able to push and pull any image. Therefore, right now I am not using any user identification at all.

However, a user should not be able to trick the registry to overwrite the Images of other users.

If user A uploads ourRegistry/myProgram:version\_1, then user B should not be able to upload something tagged ourRegistry/myProgram:version\_2.

Is there a way to add user authentification to a private registry to do this?

Additionally, the registry is part of a server that already has its own database of registered users. Is there a way to synchronize the users, so that the users don’t have to remember two passwords?