[CentOS] firewalld-config Centos 7(1) fine tuning

Thu Oct 29 07:53:53 UTC 2015
Günther J. Niederwimmer <gjn at gjn.priv.at>


I have now update a System from Centos 7 to 7(1) with all updates now the 
firewall-config don't work anymore :-(.

Why is firewall-config working on a (old) Centos 7 but not on a CentOs 7(1)?

I have this Error now   

** (firewall-config:30598): WARNING **: Couldn't connect to accessibility bus: 
Failed to connect to socket /tmp/dbus-HNMIxNWkgn: Verbindungsaufbau abgelehnt
ERROR:root:Could not find any typelib for NetworkManager
Traceback (most recent call last):
  File "/usr/bin/firewall-config", line 34, in <module>
    from gi.repository import NetworkManager
ImportError: cannot import name NetworkManager

The Problem exist also when I start NetworkManager :-(.

Can any help to found the mistake?

firewall-config is a nice tool to tune the firewall.

Thanks for a answer,
mit freundlichen Grüssen / best regards,

 Günther J. Niederwimmer