Networking & security

ss / netstat Codes & Tables

Inspect sockets and listening ports.All ss / netstat pages

TCP socket states in ss and netstat: ESTAB, TIME-WAIT, CLOSE-WAIT, SYN-SENT and moreTCP states shown by ss and netstat: LISTEN, ESTAB, TIME-WAIT, CLOSE-WAIT, SYN-SENT, FIN-WAIT. What each means and when large numbers point to a problem.