root@exampleuser-X55CR:~# fuser -v -n tcp 80 root@exampleuser-X55CR:~# fuser -v -n tcp 80 USER PID ACCESS COMMAND 80/tcp: root 3846 F.... nc root@exampleuser-X55CR:~#
root@exampleuser-X55CR:~# fuser -k 123/tcp 123/tcp: 11543