Basic server checklist
Useful first steps after installing a minimal Linux server.
Read noteLinux, networking and server administration notes.
A small collection of practical notes, command examples and troubleshooting checklists for day-to-day system administration.
Checking open ports
Simple commands for inspecting listening sockets and active network connections.
Read noteReading service logs
A quick guide to using journalctl when a service does not start correctly.
Read noteDNS troubleshooting
Basic dig and resolver checks for domains, A records and certificate issues.
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