Zee’s Blog

Problem

On Ubuntu remote display in X doesn not work.

Analysis

We need to remove “-nolisten tcp” from X command line.

Solution

1. This is sometimes in “/etc/X11/xinit/xserverrc”, but in Ubuntu you just need to configure GDM:Create or edit file /etc/gdm/custom.conf with the following content:

   [security]
   DisallowTCP=false

2. Restart X or reboot.
3. On the remote machine

   $ export DISPLAY=yourcomputer:0.0

4. On local machine

   $ xhost + remotemachine

1. SysCP is a easy-to-use System Control Panel for LAMP Servers
   http://www.syscp.de/
2. dtc-toaster - Domain Technologie Control (DTC) is a control panel aiming at commercial hosting. Using a web GUI for the administration and accounting all hosting services, DTC can delegate the task of creating subdomains, email, ssh,database, mailing lists, and FTP accounts to users for the domain names theyown.
   http://packages.debian.org/sid/dtc-toaster
3. ISPConfig - open source control panel
   http://www.ispconfig.org/

Resources

1. http://ubuntuguide.net/how-to-install-vmware-player-in-ubuntu-9-10
2. VMWare Player Documentation

Problem

VirtualBox does not want to start in Ubuntu. Error messages are:

VirtualBox can't operate in VMX root mode.
Please disable the KVM kernel extension,
recompile your kernel and reboot.

Analysis

.

Solution

First setup vbox:

# sudo /etc/init.d/vboxdrv.dpkg-bak setup

The suggested:

# sudo /etc/init.d/vboxdrv setup

from [2] did not work for me.

Uninstall module:

# modprobe -r kvm_intel

Resources

1. https://bugs.launchpad.net/ubuntu/+source/virtualbox-ose/+bug/292588
2. http://ubuntuforums.org/showthread.php?t=1163811&page=2

Problem

How to manage services in Ubuntu - looking for similar thing as “service” used in RedHat-clones.

Analysis

List of available software is the following:

• sysv-rc-conf - best
• rcconf - does not enable to set runlevel
• bootup-manager
• System -> Preferences - > Startup Applications - very simple

Solution

sysv-rc-conf is our choice and recommendation.

Resources

1. http://blog.ubuntu-tweak.com/2007/09/30/how-to-control-ubuntus-services-easily.html
2. http://ubuntuforums.org/showpost.php?p=35858&postcount=8