1, open ports
cmd = --zone public-Firewall-Port --add = 5672 / TCP --permanent # open port 5672
cmd = --zone public-Firewall-Port --remove = 5672 / TCP --permanent # 5672 closed port
cmd---reload Firewall # configuration takes effect immediately
2, view all open firewall ports
firewall-cmd --zone=public --list-ports
3, turn off the firewall
If you want to open ports too much, too much trouble, you can turn off the firewall, security self-assessment
systemctl stop firewalld.service
4, see the firewall status
firewall-cmd --state
5, view the listening port
netstat -lnpt
PS: centos7 no default netstat command, net-tools tools need to be installed, yum install -y net-tools
6, check the port is occupied by what process
netstat -lnpt |grep 5672
7 For more information, view the process of
ps 6832
8, abort the process
kill -9 6832