Hey. From last 2-3 weeks i have a server problem. In random hours (4-5 times per week) server is stopping without any message/error in logs, VPS logs and oxide logs. Server is running on Linux 4.4 Ubuntu 16.04 64bit and 12 GB of RAM. I don't have to add logs, because there is nothing in them :P

Check your Event Log (I mean an alternative for Linux, because it's windows only). Also check your entities top (Install Object Remover - "objtop" command). Maybe there are placers who spam with items dropped or any other entities, and then find them if there are any

The same problem started yesterday. The server accidentally stops without any errors. Ubuntu 10 8 gb ram

Propably RUST increased amount of used RAM in servers, the same situation is with CPU usage. Maybe in near future 8 GB of RAM is too few for RUST server. I have 10-15% more RAM usage and nearly 25-35% more CPU usage. Check in your VPS command "dmesg". Maybe your server is Out of Memory (Thanks for help misticos).