linux use more than 7
systemctl status firewalld check the status of
systemctl enable firewalld permanent firewall is enabled
after systemctl stop firewalld stop firewall restart failure
systemctl disable firewalld disable the firewall permanently
systemctl start firewalld start
systemctl restart firewalld restart
view port netstat open -anp
add ports allow firewall-cmd --add-port = 8080 / tcp --permanent
if removal port firewall-cmd --permanent --remove-port = 8080 / tcp
Policy changes are complete, please reboot: systemctl restart firewalld
The following use linux 7
Status iptables-Service
-Service iptables Start
-Service iptables STOP
-Service iptables the restart
firewall port configuration rules permit to obtain the port / etc / sysconfig / iptables
-A INPUT -p tcp -m state --state NEW -m tcp --dport 21 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEP
-A INPUT -p tcp -m state --state NEW -m tcp --dport 8080 -j ACCEP
Policy changes are complete, please restart: service iptables restart
