I have a Ubuntu machine, it keep going down after some(10-15) hours. It returns the error as no route to host when I try to SSH. But it works when I restart from hetzner console and again after few hours it goes down.
I checked:
- syslogs: there are lots of IPs trying to connect to machine but are being blocked by firewall (UFW).
- I checked auth.log but I could not find any suspicious login.
- I checked CPU utilization over time but that's also fine.
But now I don't have any clue what to look for. Any help would be really appreciated!