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Fix: /bin/dbus-launch terminated abnormally without any error message and solution

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I am a new Linux server user. I need to tunnel X over ssh. I type the following command on a CentOS/RHEL based remote host to get display on a local desktop:

ssh -X user@server1.cyberciti.biz
xeyes &
firefox &

But, I am getting an error that read as follows:

**error**: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details – 1: Failed to get connection to session: /bin/dbus-launch terminated abnormally without any error message)

How do I fix this error on a newly formatted/installed RHEL or CentOS Linux 6.x server?

X11 forwarding request failed on channel 0 Error and Solution

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I am a new Linux server user. I need to tunnel X over ssh. I type the following command from OS X Unix terminal to login into far_away_machine (a centos server):

ssh -X -o options -A -p 22 user@centos-far-away-server

But, I am getting the following error on screen:

X11 forwarding request failed on channel 0
Last login: Sun Mar 23 15:58:51 2014 from 1.2.3.4

How do I fix “X11 forwarding request failed on channel 0” on Linux or Unix-like systems?

Linux Gnome Desktop Windows Decoration Disappeared

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Sometime when I logged on to my Gnome Linux desktop I noticed that windows decoration disappeared i.e. minimize / maximaize / close buttons and other decoration gone. How do I fix this annoying problem under Fedora / Mint / Debian / Ubuntu Linux gnome desktop?

Where Is The Xorg.conf File Located under Unix / Linux / BSD?

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I want to find and edit my xorg.conf file for tweaking and configure it for new settings. The problem is that I’m unable to find the file. According to my research, xorg.conf should in /etc/X11 or /usr/X11R6/lib/X11/ directory. I found directories but not the file in directories. How do I find the xorg.conf under Unix or Linux like operating systems?