How to Install system-config-firewall-tui on Linux CentOS 6.2 Server

Introduction:

system-config-firewall-tui is a tool used in CentOS 6.2 to configure the firewall settings through a text-based interface. It is a useful utility for server administrators who prefer a command-line interface for managing firewall settings. In this guide, we will show you how to install system-config-firewall-tui on a Linux CentOS 6.2 server.

Step 1: Enable EPEL repository

The first step is to enable the EPEL repository. EPEL is an additional repository that provides access to additional software packages for CentOS.

You can enable EPEL repository by running the following command:

sudo yum install epel-release

This will download and install the EPEL repository configuration.

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Step 2: Install system-config-firewall-tui

After enabling the EPEL repository, you can install system-config-firewall-tui by running the following command:

sudo yum install system-config-firewall-tui

This will download and install the system-config-firewall-tui package and its dependencies.

[root@centos62 ~]# yum install system-config-firewall-tui -y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.hostemo.com
 * epel: ftp.cuhk.edu.hk
 * extras: mirrors.hostemo.com
 * updates: mirrors.hostemo.com
CentOS6.2-Repository                                                         | 4.0 kB     00:00 ...
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package system-config-firewall-tui.noarch 0:1.2.27-5.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

====================================================================================================
 Package                          Arch         Version             Repository                  Size
====================================================================================================
Installing:
 system-config-firewall-tui       noarch       1.2.27-5.el6        CentOS6.2-Repository        37 k

Transaction Summary
====================================================================================================
Install       1 Package(s)

Total download size: 37 k
Installed size: 59 k
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : system-config-firewall-tui-1.2.27-5.el6.noarch                                   1/1

Installed:
  system-config-firewall-tui.noarch 0:1.2.27-5.el6

Complete!

Step 3: Start system-config-firewall-tui

After installing system-config-firewall-tui, you can start the tool by running the following command:

sudo system-config-firewall-tui

This will open the text-based interface for configuring the firewall settings.

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Step 4: Configure firewall settings

Once you have started system-config-firewall-tui, you can use the text-based interface to configure the firewall settings.

system-config-firewall-tui

Use the arrow keys to navigate the menu and the spacebar to select options.

Once you have made your changes, select “OK” to save the changes and exit the tool.

Restart iptables using this command:

[root@centos62 ~]# service iptables restart

or

[root@centos62 ~]# /etc/init.d/iptables restart

Commands Mentioned:

  • yum install – installs packages
  • sudo – runs a command with root privileges
  • system-config-firewall-tui – starts system-config-firewall-tui tool
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Conclusion:

In this guide, we have shown you how to install system-config-firewall-tui on a Linux CentOS 6.2 server. This tool provides a text-based interface for configuring the firewall settings, which can be useful for server administrators who prefer a command-line interface. Remember to start the tool with root privileges and save changes before exiting the tool.

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