Frogus CloudHow to Run a Telegram Bot on a Server: systemd, Logs, Auto-Restart
A Telegram bot in Python (aiogram) or Node.js (grammY) as a systemd service: a separate user, the token outside the code, auto-restart, logs and updates.
Topic: systemd
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Linux OOM Killer: How to Tell Your Server Is Out of Memory
Use free, vmstat, dmesg and journalctl to tell a server is out of memory, find the process the OOM killer killed and limit a service's or container's memory.