DBUS refused NetworkManager connection to system_dbus_socket

Eugéne Suter easuter at gmail.com
Wed Jan 10 09:33:13 PST 2007

Hi there,

I've just finished compiling NetworkManager 0.6.4 on VectorLinux 5.8.
This is my setup:

DBUS 1.0.1
PolicyKit 0.2
XFCE 4.4

Anyway, after installing NetworkManager, I tried to run "nm-applet" in a
terminal, to see if I got any errors. It seems to be a DBUS related problem:

# nm-applet

(nm-applet:20521): GnomeUI-WARNING **: While connecting to session manager:
Authentication Rejected, reason : None of the authentication protocols
specified are supported and host-based authentication failed.

** (nm-applet:20521): WARNING **: <WARNING>      nma_dbus_init ():
org.freedesktop.DBus.Error.NoServer raised:
 Failed to connect to socket /var/run/dbus/system_bus_socket: Connection

Is it a policy related issue? This is what my /etc/dbus-1/system.conf file
looks like:

<!-- This configuration file controls the systemwide message bus.
     Add a system-local.conf and edit that rather than changing this
     file directly. -->

<!-- Note that there are any number of ways you can hose yourself
     security-wise by screwing up this file; in particular, you
     probably don't want to listen on any more addresses, add any more
     auth mechanisms, run as a different user, etc. -->

<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus
Configuration 1.0//EN"

  <!-- Our well-known bus type, do not change this -->

  <!-- Run as special user -->

  <!-- Fork into daemon mode -->

  <!-- Write a pid file -->

  <!-- Only allow socket-credentials-based authentication -->

  <!-- Only listen on a local socket. (abstract=/path/to/socket
       means use abstract namespace, don't really create filesystem
       file; only Linux supports this. Use path=/whatever on other
       systems.) -->

  <policy context="default">
    <!-- Deny everything then punch holes -->
    <deny send_interface="*"/>
    <deny receive_interface="*"/>
    <deny own="*"/>
    <!-- But allow all users to connect -->
    <allow user="*"/>
    <!-- Allow anyone to talk to the message bus -->
    <!-- FIXME I think currently these allow rules are always implicit
         even if they aren't in here -->
    <allow send_destination="org.freedesktop.DBus"/>
    <allow receive_sender="org.freedesktop.DBus"/>
    <!-- valid replies are always allowed -->
    <allow send_requested_reply="true"/>
    <allow receive_requested_reply="true"/>
    <allow own="org.freedesktop.NetworkManagerInfo"/>

  <!-- Config files are placed here that among other things, punch
       holes in the above policy for specific services. -->

  <!-- This is included last so local configuration can override what's
       in this standard file -->
  <include ignore_missing="yes">system-local.conf</include>

  <include if_selinux_enabled="yes"


Any help is much appreciated.


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