What is the common configuration syntax for firewalls?

This article mainly introduces "what is the common configuration syntax of the firewall". In the daily operation, I believe that many people have doubts about the common configuration syntax of the firewall. The editor consulted all kinds of materials and sorted out the simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "what is the common configuration syntax of firewalls?" Next, please follow the editor to study!

Start the firewall (IPV4)

Service iptables start

Turn off the firewall (IPV4)

Service iptables stop

Open a port for a specific ip

Iptables-I INPUT-s 10.4.149.51-p tcp-- dport 3306-j ACCEPT

Open ports for all ip

Iptables-I INPUT-p tcp-- dport 9000-j ACCEPT

Save firewall configuration (IPV4)

Service iptables save at this point, on the "firewall commonly used configuration syntax what is the end of the study, I hope to be able to solve your doubts." The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!