Port used by example 2
- nc
$ nc -l localhost 10000 > log.txt
$ telnet localhost 10000
$ sudo lsof -i :10000
$ sudo cat /proc/PID/cmdline
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$ nc -l localhost 10000 > log.txt
$ telnet localhost 10000
$ sudo lsof -i :10000
$ sudo cat /proc/PID/cmdline