Propose CAP_NET_BIND_SERVICE instead running synapse with root #18408
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There are alternative ways to use low numbered ports besides root. Users might be misleaded thinking they should run synapse with root privileges. Thanks to discussion with @bones_was_here.
"I think this is slightly more clear and explains the privileged port situation. Thoughts?" - @MadLittleMods https://github.com/element-hq/synapse/pull/18408/files#r2110102338 Co-Authored-by: Eric Eastwood <[email protected]>
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Thanks for the doc update @smoorg 🦒 |
Michael-Ixo
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Jun 25, 2025
- Improvements to generate config documentation from JSON Schema file. ([\element-hq#18522](element-hq#18522)) - Add support for [MSC4155](matrix-org/matrix-spec-proposals#4155) Invite Filtering. ([\element-hq#18288](element-hq#18288)) - Add experimental `user_may_send_state_event` module API callback. ([\element-hq#18455](element-hq#18455)) - Add experimental `get_media_config_for_user` and `is_user_allowed_to_upload_media_of_size` module API callbacks that allow overriding of media repository maximum upload size. ([\element-hq#18457](element-hq#18457)) - Add experimental `get_ratelimit_override_for_user` module API callback that allows overriding of per-user ratelimits. ([\element-hq#18458](element-hq#18458)) - Pass `room_config` argument to `user_may_create_room` spam checker module callback. ([\element-hq#18486](element-hq#18486)) - Support configuration of default and extra user types. ([\element-hq#18456](element-hq#18456)) - Successful requests to `/_matrix/app/v1/ping` will now force Synapse to reattempt delivering transactions to appservices. ([\element-hq#18521](element-hq#18521)) - Support the import of the `RatelimitOverride` type from `synapse.module_api` in modules and rename `messages_per_second` to `per_second`. ([\element-hq#18513](element-hq#18513)) - Remove destinations from sending if not whitelisted. ([\element-hq#18484](element-hq#18484)) - Fixed room summary API incorrectly returning that a room is private in the room summary response when the join rule is omitted by the remote server. Contributed by @nexy7574. ([\element-hq#18493](element-hq#18493)) - Prevent users from adding themselves to their own user ignore list. ([\element-hq#18508](element-hq#18508)) - Generate config documentation from JSON Schema file. ([\element-hq#17892](element-hq#17892)) - Mention `CAP_NET_BIND_SERVICE` as an alternative to running Synapse as root in order to bind to a privileged port. ([\element-hq#18408](element-hq#18408)) - Surface hidden Admin API documentation regarding fetching of scheduled tasks. ([\element-hq#18516](element-hq#18516)) - Mark the new module APIs in this release as experimental. ([\element-hq#18536](element-hq#18536)) - Mark dehydrated devices in the [List All User Devices Admin API](https://element-hq.github.io/synapse/latest/admin_api/user_admin_api.html#list-all-devices). ([\element-hq#18252](element-hq#18252)) - Reduce disk wastage by cleaning up `received_transactions` older than 1 day, rather than 30 days. ([\element-hq#18310](element-hq#18310)) - Distinguish all vs local events being persisted in the "Event Send Time Quantiles" graph (Grafana). ([\element-hq#18510](element-hq#18510))
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There are alternative ways to use low numbered ports besides root. Users might be mislead into thinking they should run Synapse with root privileges.
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EventStoretoEventWorkerStore.".code blocks.(run the linters)