LISTEN Port확인
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Linux
-bash-4.1$ netstat -atnp Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:32888 0.0.0.0:* LISTEN - tcp 0 0 :::55138 :::* LISTEN - tcp 0 0 :::3306 :::* LISTEN - tcp 0 0 :::111 :::* LISTEN - tcp 0 0 :::22 :::* LISTEN - tcp 0 0 :::23 :::* LIST..