Mar 30, 2010 | Gnu/Linux, linux, QuickFix, Virtualization, XEN
Linux: In general tab of VM in XenCenter, you get an option to install the tools. Another way is to select VM Menu -> Install Xen Server Tools option. Issue: When you try installing XenServer Tools on to Linux VMs you might find that the virtual cd device won’t...
Mar 30, 2010 | Gnu/Linux, QuickFix, Technical, Virtualization, XEN
By default CentOS base repositories won’t be configured on XenServer. To compile and install nagios/bacula or any other app on server you might end up searching for compiler tools like gcc etc. Here is a simple way to enable base repo and install gcc on your...
Mar 17, 2010 | Gnu/Linux, linux, QuickFix, Technical, Ubuntu
For security reasons root login has been disabled in Kubuntu/Ubuntu. Here are the quick steps to enable root access to KDE 1. Edit kdmrc file in /etc/kde4/kdm and change AllowRootLogin=false to AllowRootLogin=true Use the following command line option to achieve this:...
Mar 14, 2010 | Gnu/Linux, linux, QuickFix, Technical, Ubuntu
Long back I had changed my theme to MacOS theme on my Ubuntu. Since then, my metacity theme retained the windows controls on left hand side and it never changed for any theme since then. I did try looking for an easy option to revert that change but found none in...
Dec 10, 2009 | Bug Fix, Gnu/Linux, QuickFix, Technical, Virtualization, Webhosting
Virtual Ethernet devices of the OpenVZ VM’s inside ProxMox is connected to a bridge. After installing ProxMox and creating virtual nodes, I found that public ips allocated inside VM’s were not reachable to world. A quick fix for this issue is to ensure...
Nov 26, 2009 | Gnu/Linux, QuickFix, Technical
To reset the password of postgres user follow the instructions given below. First change the password of system user postgres: # passwd postgres Changing password for user postgres. New UNIX password: Retype new UNIX password: passwd: all authentication tokens updated...
Nov 15, 2009 | Gnu/Linux, linux, QuickFix, Technical
Still running some old boxes on Redhat 9? Here is a way to get it upgraded. Caution: Try this at your own risk Before proceeding, make sure all your hardware is supported by your chosen target OS Upgrade Red Hat 9 to CentOS 3.x: 1. Make a full backup of all your...
Nov 9, 2009 | Gnu/Linux, linux, QuickFix, Technical
If you’re new to work with PostgreSQL, surely you will come across this issue while logging into postgres via psql command. # psql -U postgres postgres psql: FATAL: Ident authentication failed for user “postgres” You might have...
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