linux 释放9090端口
因部署web服务，发现9090端口被系统占用
执行 sudo lsof -i :9090
[root@localhost ~]# sudo lsof -i :9090
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd 1 root 120u IPv6 95684 0t0 TCP *:websm (LISTEN)
然后执行 systemctl list-sockets
发现是系统cockpit.service占用的该端口
执行 systemctl stop cockpit.socket 关闭该服务
[root@localhost ~]# systemctl stop cockpit.socket
[root@localhost ~]# sudo lsof -i :9090
[root@localhost ~]# 端口释放成功