I restarted apache2 and hurried to deactivate Mediawiki, then no more problem, web interface stays up. I tried restarting apache2, then the web interface is back, but it is gone again after a few minutes. I thought that I could try restarting some service with systemctl restart, so I tried restarting plinth, that does not bring the web interface back. Finally, I rebooted and connected with ssh early on and displayed the journal.

I asked to reboot, the web interface came back, but it very quickly died again. Apparently, postfix/dovecot, radicale, ejabberd and quassel were still working fine (I did not test further things).

Within a few minutes (2-3 at most) of installing Mediawiki, the web interface became unavaible while I could still ssh to my Pioneer. Yesterday, I installed roundcube and, a few hours later, Mediawiki.

The recent modifications are the addition of matrix (no public registration) added last week, not much used (only 2 active users to send a few messages between each other, trying it due to a situation where I can’t make Monal on iOS and Gajim on a new machine successfully decode each other with OMEMO). Except for the moving of the filesystem, everything is as installed by the official image and plinth, no tweaking of anything. I use the version with SSD and everything moved to the SSD except /boot. I have a Pioneer that have been working fine for months with radicale, ejabberd, coturn, quassel, post/fixdovecot and synthing.

Minetest connection timed out