View network connections, ports and process


View network connections, ports and process:

lsof command example

Type the following command to see IPv4 port(s), enter:
# lsof -Pnl +M -i4

Type the following command to see IPv6 listing port(s), enter:
# lsof -Pnl +M -i6

Process information
# lsof -p PID

netstat command example


Type the command as follows:
# netstat -patun

OR
# netstat -netpl


Command ip examples

  # Forcefully close a connection to a specific destination sudo ss -K dst 192.168.1.100 # view routes ip r ip route # To reject a route (bl...

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