Every day the server is unreachable and I need to unplug and replug it in. I cannot ping it and all web services are down. After a reboot the internet is back on again.
- There are no cronjobs
- fail2ban logs appear clean
- ufw logs appear to be clean
- Syslog is a mess and I don't know what I'm looking for
The "server" is a raspberry pi 4 with 4GB of ram running multiple docker containers and is wired to a switch. The switch itself appears to be fine also and all attached computers and servers are working properly. At first I thought it was always during the night (12am-1am), but yesterday it was a 6:30pm.
$ sudo ufw status verbose Status: active Logging: on (low) Default: deny (incoming), allow (outgoing), deny (routed) New profiles: skip To Action From -- ------ ---- Anywhere ALLOW IN 192.168.0.0/24 80/tcp ALLOW IN Anywhere 443/tcp ALLOW IN Anywhere 53/tcp ALLOW IN Anywhere 22/tcp ALLOW IN 192.168.0.0/24 22/tcp ALLOW IN 192.168.1.0/24 80/tcp (v6) ALLOW IN Anywhere (v6) 443/tcp (v6) ALLOW IN Anywhere (v6) 53/tcp (v6) ALLOW IN Anywhere (v6)
I have no idea where to look for hints on the issue or where to begin.