On a centos7.1, when I run netstat -antp, there is one line, that contains a listening tcp port, without process ID.tcp        0      0 0.0.0.0:35598           0.0.0.0:*               LISTEN      -                   I can actually connect to this port:root# telnet 127.0.0.1 35598 Trying 127.0.0.1...Connected to 127.0.0.1.Escape character is '^]'.Connection closed by foreign host.How can I find which process actually listens/uses on this port?How is it possible not to have a process association?
Listening socket without process? What it means?
tcp;netstat