mirror of https://github.com/zulip/zulip.git
64 lines
2.9 KiB
Markdown
64 lines
2.9 KiB
Markdown
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# Stream privacy settings
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There are three types of streams in Zulip.
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* **Public**: Anyone can join, and anyone can view the complete message
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history without joining.
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* **Private, shared history**: You must be added by a member of the stream. The
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complete message history is available as soon as you are added.
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* **Private, protected history**: You must be added by a member of the
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stream. You only have access to the messages that are sent after you are added.
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## Privacy model for private streams
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At a high level:
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* Organization admins can see and modify most aspects of a private stream,
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including the membership and estimated traffic. Admins cannot see stream
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messages or do anything that would indirectly give them access to stream
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messages, like adding members or changing the stream privacy settings.
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* Non-admins cannot easily see which private streams exist, or interact with
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them in any way until they are added. Given a stream name, they can figure
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out whether a stream with that name exists, but cannot see any other
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details about the stream.
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## Detailed permissions
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### Public streams
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| | Org admins | Stream members | Org members |
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|--- |--- |--- |--- |
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| Join | ✔ | — | ✔ |
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| Add others | ✔ | ✔ | ✔ |
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| See subscriber list | ✔ | ✔ | ✔ |
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| See full history | ✔ | ✔ | ✔ |
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| See estimated traffic | ✔ | ✔ | ✔ |
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| Change the privacy | ✔ | | |
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| Rename | ✔ | | |
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| Edit the description | ✔ | | |
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| Remove others | ✔ | | |
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| Delete | ✔ | | |
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### Private streams
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| | Org admins | Stream members | Org members |
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|--- |--- |--- |--- |
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| Join | | — | |
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| Add others | | ✔ | |
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| See subscriber list | ✔ | ✔ | |
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| See full history | | [1] | |
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| See estimated traffic | ✔ | ✔ | |
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| Change the privacy | [2] | | |
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| Rename | ✔ | | |
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| Edit the description | ✔ | | |
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| Remove others | ✔ | | |
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| Delete | ✔ | | |
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[1] Depends on the stream type.
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[2] Yes, but only if subscribed. If you have a private stream without an
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admin, you'll have to add an admin in order to change the stream's privacy.
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