---
summary: Yet another MUC reliability module
rockspec:
dependencies:
- mod_track_muc_joins
labels:
- Stage-Alpha
...
This module reacts to [server-to-server][doc:s2s] connections closing by
performing [XEP-0410: MUC Self-Ping] from the server side to check if
users are still connected to MUCs they have joined according
[mod_track_muc_joins]. If it can't be confirmed that the user is still
joined then their client devices are notified about this allowing them
to re-join.
# Installing
```
prosodyctl install mod_ping_muc
```
# Configuring
No configuration. Enable as a regular module in
[`modules_enabled`][doc:modules_enabled] globally or under a
`VirtualHost`:
```lua
modules_enabled = {
-- other modules etc
"track_muc_joins",
"ping_muc",
}
```
# Compatibility
Requires Prosody 0.12.x or trunk