sockstat

List open Internet or UNIX domain sockets. See also: netstat. More information: https://manned.org/sockstat.

• Show information for IPv4 and IPv6 sockets for both listening and connected sockets:

sockstat

• Show information for IPv[4]/IPv[6] sockets [l]istening on specific [p]orts using a specific p[R]otocol:

sockstat -4|6 -l -R tcp|udp|raw|unix -p port1,port2…

• Also show [c]onnected sockets and [u]nix sockets:

sockstat -cu

• Only show sockets of the specified pid or process:

sockstat -P pid|process

• Only show sockets of the specified uid or user:

sockstat -U uid|user

• Only show sockets of the specified gid or group:

sockstat -G gid|group