Xnest – XDMCP protocol and virtual DM

XDMCP is protocol that allows remote connections and provides you with a working Display Manager like KDE, GNome, et al. Its a remote connection protocol that is mostly enabled on Solaris and disabled on most Linux boxes. If you need to have a remote session where you need the X Display to open some GUI applications then you can have a connection with the remote server with XDMCP.

using iTerm color schmes with gnome-terminal.

Found this great page and thought of sharing this:

http://www.sharms.org/blog/2012/08/using-iterm-2-themes-with-gnome-terminal/

When using this, you will need to install :

https://github.com/caseyhoward/nokogiri-plist

and when you install this, you will find that the permissions for the files are not appropriately set, so go to your ruby gems directory or the installation directory for nokogiri-plist and change the permissions.

script for changing gnome-terminal color schemes.

Earlier I had posted this. So, if you want to try all of these schemes, then you need not have to copy paste the schemes from the web page, you can try the below script.

gnome-terminal color schemes.

I was looking for a way to set the terminal colors for gnome. There is a GUI way to change the same by going to the Preferences->Colors. And then you can change the colors that you see in the color pallete in the bottom of the dialog box.

But I was looking at doing it faster and better, and finally I found this page.

tora installation on Fedora 17.

Here are the previous links on Tora:

Tora on F16

Tora on Fedora

And if you are interested in installing from source then you can always use this link:
http://blog.amit-agarwal.com/2012/02/06/tora-fedora-16-mysql-oracle/

And if you are interested in just installing it then you can always do:

rpm -ivh "http://amit-agarwal.co.in/mystuff/tora-2.1.3-1.fc17.i686.rpm"

Related articles

• Upgrade to Fedora 17 from 16.(amit-agarwal.co.in)

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• Fedora 17 warning: kernel panic after upgrade (part 2)(kparal.wordpress.com)

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• Fix Fedora 17 Kernel Panic after Preupgrade(loviniltra.com)

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Display X applications from virtual terminals

Here is a script that can help you set the proper envirionment to start a gnome-shell from one of the terminals.

#!/bin/bash - 
#===============================================================================
#
# FILE: xenv.sh
# 
# USAGE: ./xenv.sh 
# 
# DESCRIPTION: http://live.gnome.org/GnomeShell/Debugging
#
# 
# OPTIONS: ---
# REQUIREMENTS: ---
# BUGS: ---
# NOTES: ---
# AUTHOR: Amit Agarwal (aka), amit.agarwal@roamware.com
# CREATED: 09/14/2011 04:45:31 PM IST
# Last modified: Wed Sep 14, 2011 04:45PM
# REVISION: ---
#===============================================================================

gnome_session=$(pgrep -u $USER gnome-session)
eval export$(sed's/\o000/\n/g;' < /proc/$gnome_session/environ |grep DISPLAY)
eval export$(sed's/\o000/\n/g;' < /proc/$gnome_session/environ |grep XAUTHORITY)
eval export$(sed's/\o000/\n/g;' < /proc/$gnome_session/environ |grep DBUS_SESSION_BUS_ADDRESS)

So, once you have done that you have the correct environment to use the X display and thus you can start the gnome-shell as well or do any other fancy thing that you want 🙂

Set gnome-shell to start in fallback mode without GUI.

If you run into issues with gnome-shell then gnome-shell should allow you to disable all the plugins and get the gnome-shell. But since gnome-shell is still evolving, you might run into issue where the shell does not come up. What to do in that case. You can set the shell to start in fallback mode, where there are more chances that it will come up.

Alas, but you don’t have a shell or desktop session to do that. Simple, start the gnome-shell and before it is killed, do this: