我们用lsof来查询下
[wei@vm-cbu-qa-168-13 web-deploy]$ lsof -Pnl +M -i4 | grep 20880 java 15239 710 260u IPv4 87019792 TCP 10.20.168.13:35822->10.20.172.31:20880 (ESTABLISHED) java 15239 710 285u IPv4 87038933 TCP 10.20.168.13:43058->10.20.172.93:20880 (ESTABLISHED) java 25755 712 544u IPv4 87265535 TCP *:20880 (LISTEN) java 25755 712 562u IPv4 87265755 TCP 10.20.168.13:40151->10.20.168.16:20880 (ESTABLISHED) java 25755 712 563u IPv4 87265695 TCP 10.20.168.13:59947->10.20.151.21:20880 (ESTABLISHED) java 25755 712 564u IPv4 87265696 TCP 10.20.168.13:47042->10.20.142.80:20880 (ESTABLISHED) java 25755 712 565u IPv4 87265703 TCP 10.20.168.13:40939->10.20.141.52:20880 (ESTABLISHED) java 25755 712 570u IPv4 87265751 TCP 10.20.168.13:43361->10.20.141.141:20880 (ESTABLISHED) java 25755 712 571u IPv4 87265753 TCP 10.20.168.13:40960->10.20.143.111:20880 (ESTABLISHED) java 25755 712 572u IPv4 87265752 TCP 10.20.168.13:45368->10.20.141.63:20880 (ESTABLISHED) java 25755 712 573u IPv4 87265754 TCP 10.20.168.13:34315->10.20.168.17:20880 (ESTABLISHED) java 27709 713 339u IPv4 87271862 TCP 10.20.168.13:50212->10.20.172.11:20880 (ESTABLISHED) java 27709 713 341u IPv4 87271859 TCP 10.20.168.13:41128->10.20.172.88:20880 (ESTABLISHED) java 27709 713 347u IPv4 87271865 TCP 10.20.168.13:46782->10.20.172.1:20880 (ESTABLISHED)可以看到监听20880端口的是进程pid是25755，user是 712