#ss (2)

Cheat sheets (2)

lsof & ss — Open Files and Sockets

Diagnose what's holding a port, which files a process has open, and the state of every TCP/UDP socket using lsof and the modern iproute2 ss utility.

lsof ss lsfd sockets networking processes debug cli sysadmin web-researched

ps, ss & netstat — Processes & Sockets

Inspect running processes (ps), list network connections and listening ports (ss / netstat). Covers output formats, filtering, process trees, and socket state analysis.

ps netstat ss processes networking sockets cli sysadmin web-researched

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