user@ubuntu:~$ sudo tcpdump port 9392
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on enp0s3, link-type EN10MB (Ethernet), capture size 262144 bytes
07:53:01.322339 IP MyPC.62954 > ubuntu.9392: Flags [S], seq 2754395230, win 8192, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0
07:53:01.322368 IP ubuntu.9392 > MyPC.62954: Flags [R.], seq 0, ack 2754395231, win 0, length 0
07:53:01.322796 IP MyPC.62955 > ubuntu.9392: Flags [S], seq 1949529448, win 8192, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0
07:53:01.322814 IP ubuntu.9392 > MyPC.62955: Flags [R.], seq 0, ack 1949529449, win 0, length 0

user@ubuntu:~$ sudo ss -antp
State          Recv-Q     Send-Q     Local Address:Port    Peer Address:Port
LISTEN         0          128            127.0.0.1:9390         0.0.0.0:*      users:(("openvasmd",pid=1693,fd=4))
LISTEN         0          128            127.0.0.1:80           0.0.0.0:*      users:(("gsad",pid=1732,fd=5))
LISTEN         0          128            127.0.0.1:9392         0.0.0.0:*      users:(("gsad",pid=1718,fd=5))