Document one-way bridging (#921)

7 years ago · 06f996c5d1
parent 19288b7759
commit 06f996c5d1
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--- a/supporting-docs/guides/2017-03-11-types-of-bridging.md
+++ b/supporting-docs/guides/2017-03-11-types-of-bridging.md
@ -62,6 +62,10 @@ Some remote protocols (IRC, XMPP, SIP, SMTP, NNTP, GnuSocial etc) support federa

 We’re not aware of anyone who’s done this yet.

+### One-way bridging
+
+One-way bridging is rare, but can be used to represent a bridge that is bridging from the remote system into matrix. This is common when the remote system does not permit message posting, or is simply not capable of handling posting outside their system. The users bridged from the remote system often appear as virtual users in matrix, as is the case with [matrix-appservice-instagram](https://github.com/turt2live/matrix-appservice-instagram).
+
 ### Sidecar bridge

 Finally: the types of bridging described above assume that you are synchronising the conversation history of the remote system into Matrix, so it may be decentralised and exposed to multiple users within the wider Matrix network.