How to Disable Iptables Firewall in CentOS

The program iptablesis the firewall, which is installed by default on most Linux distributions, including CentOS.

Sometimes you need to stop iptablesto troubleshoot network-related problems.

Also, if there is a problem with the newly installed program – in the appropriate forums you can find an advice to temporarily stop the firewall to check whether the program will work without it.

From this article, you will learn how to check the current status of the firewall iptablesand how to turn it off or turn it on in CentOS.

Privileges: The following commands must be executed with rootprivileges.

Iptables: Check Status

Good advice: Disconnected iptables, and the necessary program did not work? Try disabling SELinuxRead more →

Check status iptablesfor IPv4:

Check status iptablesfor IPv6:

Iptables: Disable Firewall

Before disabling iptables, you must understand that it serves the security of the Linux system and, when properly configured, helps protect the server from various network attacks.

Deactivation iptablesis not the best idea, if you clearly do not know what you are doing and why.

Disabling is iptablesacceptable only if you do this on your local machine for tests and security can be neglected, or if there is already another configured firewall in front of the server.

Stop and remove from startup (disable) iptablesfor IPv4:

Stop and remove from startup (disable) iptablesfor IPv6:

Iptables: Enable Firewall

Enable and add to startup iptablesfor IPv4:

Enable and add to startup iptablesfor IPv6:

Authored By Imran Yousaf

I am Imran Yousaf, a computer geek, founder of the site Smashinglab.com. I am a die hard fond of open-source software and Linux operating system. In addition to Linux, I am interested in everything related to information technology and modern science.

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