There is a Guest Session option in Ubuntu login screen. This user has limited access to the system. But I don't prefer to have this login. Here is how this login can be disabled. The display manager in Ubuntu is LightDM. We need to edit the configuration file of LightDM to get it done. In the configuration ...
How to to do parental control to keep track of kids time on Linux Mint Debian Edition Computer using timekpr application

timekpr is a nice GUI application to keep track of your kids time on Computer. Here is what this application claims - "This program will track and control the computer usage of your user accounts. You can limit their daily usage based on a timed access duration and configure periods of day when they can or ...
How to fix NVidia HDMI Audio in Ubuntu 12.04

I get HDMI video working fine with my Sony 32" LCD TV as external screen. But audio has been a problem for long time. Here is a simple technique to enable audio through HDMI so that you can enjoy the high quality sound through TV or Home Theatre System. Motherboard: M3N78-EM based on NVIDIA GeForce 8300 Chipset Operating ...
How to get LIRC (Infrared Remote Control) working in Debian 6.0 (Squeeze)
Recently I was trying to install LIRC (Linux Infrared Remote Control) software in my Debian 6.0 (Squeeze) Stable release. But it didn't do well with my remote's kernel module. The module called lirc_mceusb (for my Remote control hardware designed for Windows Media Center Edition) threw some kernel errors and was in pathetic state. I tried to ...
How to get Scheduled Power On feature working in Debian GNU/Linux on QNAP TS-110 Server?
QNAP TS-110 SOHO Server does support Scheduled Power ON feature with default QNAP firmware. But the Debian ARM Linux for QNAP device does not support this feature. While hacking further on kernel code and internet, I came to know that RTC Seiko S-35390A driver does not support wake-up alarm in default kernel. So I compiled the ...
U-Boot tools for Debian ARM Linux in QNAP Server
Here is a small note on how to install U-Boot tools to manage boot loader from linux environment. This will provide a tool for printing environment for the bootloader U-Boot (fw_printenv) and modifying the same (fw_setenv). 1. Install the necessary U-Boot support packages # apt-get install u-boot uboot-envtools You can find your MTD partition information in /proc/mtd file ...
How to build and install custom linux kernel for QNAP Server based on ARM Kirkwood platform?
Recently I had to install a custom kernel for my Home server based on ARM kirkwood platform powered by Debian GNU/Linux. Here I have documented this for my future reference and also for your reference. Hardware System QNAP Home Server TS-110 Marvell Kirkwood platform based on ARM Debian GNU/Linux 6.0 (Squeeze) based on 2.6.32 kernel Step-1: Download the kernel source ...
How to use C library in python? (Generating Python wrappers for C library)
Update: Thanks to reddit readers, I have updated this write-up with ctypes also. This is a simple example to quick learn how to generate a python wrapper for C library. I don't explain more. Just code example and console output should be sufficient to get the point. Here we have a shared library called flags (flags.c ...
How to prepare anaconda updates image for Red Hat Enterprise Linux and Fedora
Anaconda is the installer tool for Red Hat Enterprise Linux and Fedora. This tutorial is applicable for their derivatives like CentOS and Scientific Linux also. This tutorial empowers you to fix the bugs or missing features in installer without waiting for Red Hat. The update image you generated is used while installing. Anaconda update image involves ...
Tata Photon+ USB Modem (12d1:1446) configuration in Red Hat Enterprise Linux 5 and Legacy Fedora

This post details out the usage of Tata Photon+ USB Broadband Modems in Red Hat Enterprise Linux 5.X and legacy Fedora Linux. It should be applicable for other derivatives of Red Hat like CentOS and Scientific Linux also. This USB Modem is not supported out of box in the above said OS. We need a special ...
HOWTO: Damn simple backup script in Linux based on rsync and NFS share
M Home network setup is like this: A small NAS Box from QNAP (TS-110) powered by Debian (Here is how I setup this server) connected with network along with my laptop and Home PC. Laptop is powered by Linux Mint and Home PC by Ubuntu 11.10. I need to take backup of both the machines ...
How to get rid of “Enter password to unlock your login keyring” in Linux Mint Debian Edition (LMDE)

Recently I switched over to Linux Mint Debian Edition (LMDE). Here is my review on LMDE. There are some minor glitches I found while working on this system. I encounter Enter password to unlock your login keyring prompt dialog box once I logged in. In Ubuntu this dialog I have encountered after changing the user password. But ...
Review: Linux Mint Debian Edition (LMDE)

I always see the Debian as distro born for Linux, with its top class package management, stable system performance, huge repository, less customization of applications and easier configuration. Once it was my main development system at home. When Ubuntu was introduced I switched over to Ubuntu, seeing it as "user friendly Debian", with the features ...
How to fix GRUB rescue prompt without Live CD? (For GRUB2)
Recently most of the leading Linux distributions have moved to GRUB2 Boot loader. It has a long list of features. Given that it has some learning curve also. Since it is a boot loader, not an user space application, we don't care about it till it puts us in rescue prompt :-). As usual today I ...
DIY: Damn cheap laptop cooling pad out of waste materials.

Here is how I got a damn simple and cheap laptop cooling pad. In market, you can find hell lot of cooling pads in wide range of price. I just thought of trying to make a cooling pad with the materials available at home, so ultimately at the price of zero. This model does not ...
