How to Install Nvidia Video Drivers In 10.04 Lucid Lynx

1. Open your favorite terminal (ie. Applications->Accessories->Terminal) and uninstall any and all nvidia components installed.

$ sudo apt-get purge nvidia*

2. Next we need to blacklist “nouveau”. Do so by adding the following into /etc/modprobe.d/blacklist.conf with your favorite text editor.

$ sudo blacklist nouvea

3. Install the latest official stable driver from the

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How do I disable the ping response?

Usually a ping is used to check if a machine is up and to check the network status.

It is a small network packet sent to the machine. If the machine is up, an answer will be sent. The time needed to get the answer is called ping time or round-trip time.

The ping response from an IP indicates the machine is up.

Unfortunately this can be used to quickly scan an IP-range for reachable hosts.

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How To create RPM from Source

This is for the Redhat, SuSE and CentOS user out there. Sometimes when you try to search for rpm packages, the only thing that you find is the source file. You create rpm file using this source file:

1. save the source file(usually in tar.gz or tar.bz2 format)
2. extract the files-> tar -xvzf filename.tar.gz or tar -xvjf filename.tar.bz2
3. open the folder of the extracted file and find .spec

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How to Force fsck (Filesystem check) on next boot

If you want to force fsck on the next boot, just create a file called /forcefsck . If this file is present, then during next boot - the fsck is forced.

# touch /forcefsck

Now reboot the machine and when it comes up, fsck will be forced.

# reboot

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HOWTO setup Squid Proxy & DansGuardian Internet Content Filter

For Ubuntu
Installing Apache
$ sudo aptitude install apache2Setting a Static IP Address
Now make sure that you have a static IP address
$ sudo vi /etc/network/interfacesAnd change the following (bold) to match your network
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface

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Browse Internet faster in Linux with Ziproxy

Ziproxy is forwarding, non-caching, compressing HTTP proxy server.
Basically it squeezes images by converting them to lower quality JPEGs or JPEG 2000 and compresses (gzip) HTML and other text-like data.
It also provides other features such as: HTML/JS/CSS optimization, preemptive hostname resolution, transparent proxying and more.

Ziproxy is an option when dealing with low-bandwidth cases like:

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Check your unread messages in Gmail, from terminal

$ curl -u username --silent "https://mail.google.com/mail/feed/atom" | perl -ne 'print "\t" if //; print "$2\n" if /<(title|name)>(.*)<\/\1>/;'


replace username with your gmail username.

This command will promt for your password, enter it and view your unread in your gmail account .

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How to make a terminal remember sudo passowrd for ever

when you type sudo command for the first time in a terminal it will ask you the sudo password.
This password will be remembered by that terminal for 15 minutes by default.

If you want that terminal to remember your password for ever during its life time follow these steps.

1. Type at terminal



sudo visudo


2. Edit as shown below

Change

Defaults env_reset

to

Defaults env_reset,

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Change your xsplash Boot Screen with your desktop change in ubuntu 9.10 Karmic Koala

Ubuntu has gained new splash screen software called xsplash, and is introduced in ubuntu 9.10 karmic Koala. Here a simple nice script for changing your xsplash screen with respect to your desktop wallpaper. Every time you change the desktop wallpaper, it will automaticaly change the xsplash screen.

Download this Script from here

1. Download and extract the file wallpaper_daemon.py
(use command

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UNP a Universal File Unpacking Utility for Ubuntu / Debian

Unp is a small perl script which makes extraction of any archive files in easy way. It support several compressors and archiver programs, chooses the right one(s) automatically and extracts one or more files using a single command. It supports rar, zip, tar.gz, deb, tar.gz2, rpm etc..

How to Install unp in ubuntu / Debian

$ sudo apt-get install unp

Usage Method 1 (unpack all archives in a

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How to Change Sudo Password Remembering Time in Ubuntu

When You use 'sudo' command it will ask for password in First time and will remember password for 15 minutes. It is a security hole for sensitive systems.

You can change sudo Password Remembering Time in Ubuntu .


Open a terminal and type



$ sudo visudo


In Ubuntu, visudo uses nano text editor, and what it does is edit the / etc / sudoers.tmp


Check for the line as shown below



Defaults

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How to Hide Secret Data in image and audio files Ubuntu / Debian: Steghide

steganography is the technique used for hiding various data in different type of image and audio files with out changing the basic characteristics of file. Steghide is a utility for steganography. The color- respectivly sample-frequencies are not changed thus making the embedding resistant against first-order statistical tests.

Features include:
* Compression of embedded data
* Encryption of

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Howto Convert Ext3 filesystem to Ext4 Filesystem without Reinstalling OS in Ubuntu

You can convert your existing Ext3 filesystem to Ext4 with an easy procedure.

Things to remember

Unmount the filesystem before convert
Filesystem must be non-root
This way you can improve the performance, storage limits and features of your existing filesystem without reformatting and/or reinstalling your OS and softwares.

First, unmount the partition: umount /dev/sda2 (change sda2 with your

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How to Install GNOME 3 (GNOME-Shell) in ubuntu 9.10 Karmic Koala

GNOME (GNU Network Object Model Environment) is a desktop environment created for the operating system GNU / Linux Desktop Environment is recognized as the official GNU project. With the announcement of version 3.0 was introduced GNOME-Shell, which integrates various functions into a 'single window.  The desktop area is divided into several parts depending on the activities and workspaces is

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How to Recover / Hack / Reset Windows NT / 2000 / XP / Vista Password Using Ubuntu Live CD

You can easily hack Windows Password with Ubuntu. You may need to reset an admin password in windows (NT/2000/XT/Vista) for many reasons, such as you have  forgotten it or you  need to repair and don't have access to the admin password. You can Easily Reset Windows password with Ubuntu.

Requirements

A little knowledge in Command Line , An Ubuntu Live CD. And a Wonderful package called chntpw.

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How to build debian package from source

1. Edit your /etc/apt/sources.list file with an entry
"deb-src http://host/debian distribution section1 section2 section3" like this.

2. apt-get update

3. apt-get source

This will download three files: a .orig.tar.gz, a .dsc and a .diff.gz. In the case of packages made specifically for Debian, the last of these is not downloaded and the first usually won't have "orig" in the name.

The .dsc

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How To Create And Configure Multiple Virtual Network Interfaces In Ubuntu

Create And Configure Multiple Virtual Network Interfaces In Ubuntu Linux with ease.



Configuring Virtual Networks:
Let's start, go to Applications, Accessories, Terminal and type:

$ sudo gedit /etc/network/interfaces


Duplicating the eth0 interface create virtual network cards and IP addresses. And adding a unique number starting from 1 to 9.



auto eth0:x allows that the network interface

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How to Control the CPU Usage of a Process in Ubuntu / Debian Linux with cpulimit

CPULIMIT is a very good utility, this can be utilized for limiting the cpu usage of a process.  Limits are expressed in percentage, not in cpu time. This  does not act on the nice value or other scheduling priority , but on the real cpu usage. System administrators can effectively use this for avoiding there headace. The % limit from 0-100 for single processor 0-200 for dual processor.
How to

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8085 Microprocessor Simulator for Ubuntu / Debian /Fedora Linux:GNUSim8085

GNUSim8085 is a graphical simulator, assembler, debugger  for Intel 8085 microprocessor.It is very helpful for Engineering and Polytechnic students with Microprocessor as a subject.
It is available in Ubuntu and Debian repository

$sudo apt-get install gnusim8085

Fedora

$ yum install gnusim8085

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How to Change the position of the Restore / Max / Close buttons on windows in ubuntu 9.04 , 9.10 , 10.04

Many you might have already seen that the position of the buttons on the window decorated had been left justified in ubuntu 10.04.
Actually it is very easy to change the justification.

1. Press Alt+F2 and type in

gconf-editor2. Navigate to
app->metacity->generaldouble click the "button_layout" option and change it to "menu:maximize,minimize,close"
rather than "minimize,maximize,close:menu

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How to Setup a transparent proxy with Squid in three easy steps

Modify or add following squid directives to /etc/squid/squid.conf


httpd_accel_host virtual
httpd_accel_port 80
httpd_accel_with_proxy on
httpd_accel_uses_host_header on
acl lan src 192.168.1.1 192.168.2.0/24
http_access allow localhost
http_access allow lan


Where,

httpd_accel_host virtual: Squid as an httpd accelerator
httpd_accel_port 80: 80 is port you want to act as a proxy

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[ How to ] Improve NVidia Laptop Graphics Performance in Ubuntu

NVidia laptop cards come with a feature called PowerMizer that dynamically underclocks the GPU when it's not being used much. This is great for battery power but horrible for performance when usingDesktop Effects (compiz). Unfortunately, NVidia does not provide a way to configure PowerMizer on Linux however, it's not difficult to create a script that will give you maximum speed while on AC power

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How to install 32bit deb applications in 64bit Ubuntu Linux system

Here you can see a Tip for installing 32 Bit applications i 64 bit Ubuntu
Most of the 64 bit ubuntu users need to install their popular 32 applications.  Some times it will return an error you have to use ia32 libraries. .In ubuntu Linux you can easily install ia32 Libraries.




Open a terminal type:

$ sudo apt-get install ia32-libs

Now You can install your application

$sudo dpkg -i - -

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How to Backup using Rsync in Ubuntu

rsync is a software application for Unix systems which synchronizes files and directories from one location to another while minimizing data transfer using delta encoding when appropriate. An important feature of rsync not found in most similar programs/protocols is that the mirroring takes place with only one transmission in each direction. rsync can copy or display directory contents and copy

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[ How to ] Auto-mounting internal drives in Ubuntu

sudo gedit /etc/hal/fdi/policy/preferences.fdi

To fix it so that internal drives will show up on your desktop when you boot up, change this line

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How To hide Apache2 version Information from hackers

Some times we need to hide apache banner information, because hackers check version details, before attacking a sever, If you close this door, it is more difficult for them to exploit any system holes and thus making vulnerability scanners work harder and in some cases impossible without knowing version information.


Do the following steps
Modify /etc/apache2/apache2.conf
Change the

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Control Your Children's Internet Access with Gnome Nanny in Ubuntu / Debian

Gnome Nanny is a parental control system. By using Gnome Nanny you can easily  control what your kids are doing in the computer. You can limit how much time a day each one of them is browsing the web, chatting or doing email. You can also decide at which times of the day they can do this things. Gnome Nanny filters what web pages are seen by each user, so you can block all undesirable webs and

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HowTo Find out if Installed Linux is 32 bits or 64 bits

To figure out  whether we have installed Linux is of 32 bits or 64 bits, you can run the following command in a Terminal:
uname -mThe possible outcomes and their meanings are:

    * i686       : Installed 32-bit version.
    * x86_64 : Installed 64-bit version.



or try 


[root@rhel55 basil]# file `which file`
/usr/bin/file: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/

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