Fixing matrix-synapse WAbridge issue: not connected to WA

Which port is set for the database in /opt/synapse/homeserver.yaml? See also Matrix - synapse

Which versions of rh-postgresql are installed?

rpm -qa rh-postgresql*

In general docker would make life much easier as regards python and postgresql upgrades but I don’t know if it’s worth the effort because of CentOS 7 EOL.

NS8 matrix app development already started, see GitHub - compgeniuses/ns8-matrix: NEthserver 8 matrix-Homeserver Module
I’m going to work on it together with @oneitonitram asap, after meshcentral and moodle.

If you need a solution for matrix now, we can have a look at your server together…

NS8 already provides Mail and Nextcloud as base apps.
Instead of fail2ban there’s crowdsec now.
Moodle is WIP and will be released soon.

In-place upgrade is in progress but much work.

As a workaround, if you have the possibility, you could

  • order a second VPS (ideally SSD/NVMe), migrate to the new VPS and quit the old one
  • restore a VPS backup on a local VM and do the migration to the VPS
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