sudo firewall-cmd --state
或者使用如下命令
sudo systemctl status firewalld
sudo systemctl start firewalld
sudo systemctl restart firewalld
sudo systemctl stop firewalld
sudo firewall-cmd --list-ports
# 放行新端口
sudo firewall-cmd --zone=public --add-port=8080/tcp --permanent(8080 替换为需要放行的端口)
#重启防火墙
sudo systemctl restart firewalld
sudo firewall-cmd --zone=public --add-port=**/tcp --permanent
#重启防火墙
sudo systemctl restart firewalld
sudo firewall-cmd --zone=public --remove-port=8080/tcp --permanent(8080 替换为需要关闭的端口)
#重启防火墙
sudo systemctl restart firewalld
netstat -lntp |grep 8080(替换为需要查询的端口)
firewall-cmd --reload
树苗如果因为怕痛而拒绝修剪,那就永远不会成材。