# Totally Walled-Off Groups
**URL:** https://meta.discourse.org/t/totally-walled-off-groups/116850
**Category:** Support
**Created:** [May 4, 2019, 5:55pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850 "2019-05-04T17:55:23Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@tedpearlman](https://meta.discourse.org/u/tedpearlman)
#### Post date: [May 4, 2019, 5:55pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/1 "2019-05-04T17:55:23Z")
I apologize for this question, as it must have been answered before. Just can’t find that answer.
I want to create three groups of people who use my Discourse instance. But I want members of a given group to ONLY see the posts, messages, categories, tags, members, etc., from their own group.
How do I set this up? Or do I need to have a separate Discourse instance for the kind of walled-off group I’m describing?
Thank you!
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### Author:  [@Stephen](https://meta.discourse.org/u/Stephen)
#### Post date: [May 4, 2019, 7:00pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/2 "2019-05-04T19:00:00Z")
You can make specific categories accessible to individual groups, but you can’t prevent members of group A from seeing members of groups B and C listed in /users or messaging them specifically.
PMs can be disabled site-wide though.
Your use case is too ambiguous to really make a recommendation, you’ve not said who these users are, if they’re coming from a different system, or anything really.
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### Author:  [@tedpearlman](https://meta.discourse.org/u/tedpearlman)
#### Post date: [May 4, 2019, 7:04pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/4 "2019-05-04T19:04:57Z")
I apologize, but the use case is private. You’ll just have to trust me that it makes sense for my organization. 😉
Thanks for replying, though!
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### Author:  [@schleifer](https://meta.discourse.org/u/schleifer)
#### Post date: [May 4, 2019, 9:01pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/5 "2019-05-04T21:01:36Z")
If you have essentially three separate fora that you want to run on the same server, then you can use multisite:
> [@Multisite configuration with Docker](https://meta.discourse.org/t/multisite-configuration-with-docker/14084):
>
> warning While multisite is supported in the Discourse application, this is an advanced sysadmin setup. If you don’t know what you’re doing, do not set up multisite. The Discourse team is unable to provide multisite configuration support. If you wish to host multiple domains on a singled Docker setup, you’ll need a multisite configuration. Here are the basic building blocks for one. Understand hooks Multisite is a fairly advanced topic. Before attempting a multisite build, spend some time…
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### Author:  [@tedpearlman](https://meta.discourse.org/u/tedpearlman)
#### Post date: [May 4, 2019, 9:02pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/6 "2019-05-04T21:02:17Z")
Ah, thank you, Anrdrew!
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### Author:  [@merefield](https://meta.discourse.org/u/merefield)
#### Post date: [May 4, 2019, 9:06pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/7 "2019-05-04T21:06:57Z")
> [@Stephen](#):
>
> you can’t prevent members of group A from seeing members of groups B and C listed in /users or messaging them specifically.
You can turn off the user directory though?
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### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [August 28, 2022, 11:37am UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/8 "2022-08-28T11:37:23Z")
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### Author:  [@Stephen](https://meta.discourse.org/u/Stephen)
#### Post date: [August 28, 2022, 3:10pm UTC](https://meta.discourse.org/t/totally-walled-off-groups/116850/9 "2022-08-28T15:10:16Z")