Install system-config-firewall-tui on CentOS 6.6

To use the Firewall CLI package ‘system-config-firewall-tui’ a few extra dependencies need to be installed that by default are not resolved.

Install dependencies and start required service, then the firewall utility should start without error.

yum install system-config-firewall-tui dbus dbus-python
service messagebus start
system-config-firewall-tui