How to open firewall port for specific IP on CentOS 7

How to open firewall port for specific IP on CentOS 7

This tutorial will tell you How to open firewall port for specific IP on CentOS 7

You will see that while we can manually open a specific port, it is often easier and beneficial to allow based on predefined services instead.

Check the updated rules with Firewalld Zone: Refer Article for understanding zone

]#firewall-cmd –zone=public –list-all

Below command will allow the IP address in zone.

]#firewall-cmd –zone=public –add-source=192.168.7.177

Below command will allow the port number in zone.

]#firewall-cmd –zone=public –add-port=1241/tcp

Check the update rules using below command.

]#firewall-cmd –zone=public –list-all

Now make it as permanent rules.

]#firewall-cmd –runtime-to-permanent

Reload the firewalld service.

]#firewall-cmd –reload

Enjoy 🙂