Enable iptables firewall in CentOS7.2

In fact, these things should be clearly written as soon as they are completed. they have been written for a long time. maybe they have not been written in some places. I hope to see the kids shoes for help and I will update them again, if any error occurs, please criticize and correct it. I used iptables as a firewall before 7.0 and firewall after 7.0. I don't know why, but most people use iptables, so I also use it. 1. disable firewallViewCode

In fact, these things should be clearly written as soon as they are completed. they have been written for a long time. maybe they have not been written in some places. I hope to see the kids shoes for help and I will update them again, if any error occurs, please criticize and correct it.

I used iptables as a firewall before 7.0 and firewall after 7.0. I don't know why, but most people use iptables, so I also use it.

1. disable firewall

View Code

2. install the iptables firewall.

1. install

View Code

2. configuration

View Code

OK. Now, your iptables has been configured. if you want to add a port later, proceed to the next step.

3. open ports

View Code

Well, these are some basic configurations related to iptables. I hope you can tell me something that is difficult.