Container VPS- Services like postfix, netfilter fails after a reboot

riviera

Hello,

I'm running Ubuntu 20.04 in a container VPS with ISPConfig but since the beginning I'm having troubles when it restarts.

First I have an error
[email protected] loaded failed failed User Manager for UID 1000

Also ach time Postfix stops working with the status:

postfix.service                                          loaded active exited    Postfix Mail Transport Agent                                            
[email protected]                                        loaded failed failed    Postfix Mail Transport Agent (instance -)    

in it's logs:

    Apr  9 18:45:45 server01 dovecot: auth: Error: auth worker: Aborted PASSV request for [email protected]: Lookup timed out
    Apr  9 18:45:45 server01 dovecot: auth: Warning: auth workers: Auth request was queued for 54 seconds, 3 left in queue (see auth_worker_max_count)
    Apr  9 18:45:45 server01 dovecot: auth-worker(547): Error: sql([email protected],2a01:xxxxx:xxxx:xxxx:xxx:ba27,<6TSwbTvcm+Qxxxxxx>): Password query failed: Not connected to database
    Apr  9 18:45:45 server01 dovecot: auth-worker(547): Warning: conn unix:auth-worker (pid=542,uid=0): auth-worker<1>: Auth master disconnected us while handling request for [email protected] for 60 secs (result=FAIL)
    Apr  9 18:45:45 server01 dovecot: auth-worker(772): Error: mysql(localhost): Connect failed to database (dbispconfig): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - waiting for 1 seconds before retry
    Apr  9 18:45:45 server01 dovecot: auth-worker(772): Error: mysql(localhost): Connect failed to database (dbispconfig): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - waiting for 1 seconds before retry
    Apr  9 18:45:46 server01 dovecot: auth-worker(772): Error: mysql(localhost): Connect failed to database (dbispconfig): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - waiting for 5 seconds before retry
    Apr  9 18:45:46 server01 dovecot: auth-worker(772): Error: mysql(localhost): Connect failed to database (dbispconfig): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - waiting for 5 seconds before retry

then if I reboot it manually it works
I checked mariadb it is working.

I have the same problem with netfilter-persistent, after a reboot it stops working.

Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[140]: run-parts: executing /usr/share/netfilter-persistent/plugins.d/15-ip4tables start
Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[143]: Another app is currently holding the xtables lock. Perhaps you want to use the -w option?
Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[140]: run-parts: /usr/share/netfilter-persistent/plugins.d/15-ip4tables exited with return code 4
Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[140]: run-parts: executing /usr/share/netfilter-persistent/plugins.d/25-ip6tables start
Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[145]: Another app is currently holding the xtables lock. Perhaps you want to use the -w option?
Apr 01 05:01:35 server01.XXXX.com netfilter-persistent[140]: run-parts: /usr/share/netfilter-persistent/plugins.d/25-ip6tables exited with return code 4

I searched for a solution for a long time but all the ones I tried didn't work.

Thanks