just out of the blue maybe of interest
tail -f /var/log/mysql/mysqld.log
021-10-22 20:22:23 0 [Note] InnoDB: Buffer pool(s) load completed at 211022 20:22:23
2021-10-22 20:25:25 3 [Warning] Aborted connection 3 to db: 'grommunio' user: 'gromm' host: 'localhost' (Got an error reading communication packets)
2021-10-22 20:28:27 24 [Warning] Aborted connection 24 to db: 'grommunio' user: 'gromm' host: 'localhost' (Got an error reading communication packets)
changed from gromm.domain.com to localhost /etc/gromox/adaptor.cfg
reboot
2021-10-22 20:30:45 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
2021-10-22 20:30:45 0 [Note] Server socket created on IP: '127.0.0.1'.
2021-10-22 20:30:45 0 [Note] InnoDB: Buffer pool(s) load completed at 211022 20:30:45
2021-10-22 20:30:45 0 [Note] Reading of all Master_info entries succeeded
2021-10-22 20:30:45 0 [Note] Added new Master_info '' to hash table
2021-10-22 20:30:45 0 [Note] /usr/sbin/mysqld: ready for connections.
Version: '10.5.8-MariaDB' socket: '/run/mysql/mysql.sock' port: 3306 MariaDB package
maybe not a smart idea to change localhost / in adaptor.cfg
but i cant find if it was changed manually or during the initial setup
too much testing on ths machine and less not documenting ;)