Tutorial Proggraming Free

tutorial - Windows "Screen Of Death" now on Linux (GDM Theme)

Here is fantastic GDM Theme based on the famous M$ Screen Of Death.

Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2009/07/135781757112839.html

tutorial - Squid Authentication using RADIUS

Radius is a server for remote user authentication and accounting. Its primary use is for Internet Service Providers, though it may as well be used on any network that needs a centralized authentication and/or accounting service for its workstations.

In this article I wont go into detail about installation and configuration of RADIUS or Squid server and will assume that both are installed and configure properly.

Download the squid authenticating module -- Here.
Unpack it and compile it

# tar -zxvf squid_radius_auth-1.10.tar.gz
# cd squid_radius_auth-1.10/
# make

You will get a squid_radius_auth executable that you can move to a safe place. It needs a config file, squid_radius_auth that should contain the name of the RADIUS server and the secret:

server radius_server
secret secret_phrase

Now, configure Squid to use RADIUS server for Authentication, open your squid.conf file and find and replace the auth section with following ...

    auth_param basic program /path_to_auth/squid_radius_auth
    auth_param basic children 5
    auth_param basic realm Please enter your domain credentials
    auth_param basic credentialsttl 8 hours

Next you have to condition Squid to allow only authenticated users. In the following example users that are in the local LAN are allowed without logging in but users that don't show up in the local users file (localusers) are asked to login:

    acl passwd proxy_auth
    acl localusers src "/etc/squid/localusers"

    http_access allow localusers
    http_access allow all passwd
    http_access allow all

You'll also have a log of who and when logged on to use the web services on the RADIUS server's logs.

source:http://linuxpoison.blogspot.com/2009/07/135781757112222.html

tutorial - SQL client and front-end for multiple database- crunchyfrog

CrunchyFrog is a SQL client and schema browser mainly (but not solely) for the GNOME desktop. It's written in Python (PyGTK) and licensed under the GNU General Public License v3.

Features
    * Supports various databases (PostreSQL, MySQL, SQLite, Oracle, SQLServer, Firebird, Informix, MaxDB).
    * Lightweight user interface for daily tasks.
    * SQL editor with syntax highlighting, auto completion and SQL formatting.
    * Export results to CSV and OpenOffice.
    * Inspect database objects.
    * Supports multiple database connections at once (e.g. for switching between development and production environments).

Ubuntu / Debian:
To install CrunchyFrog add the following lines to /etc/apt/source.list:

deb http://ppa.launchpad.net/crunchyfrog/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/crunchyfrog/ppa/ubuntu jaunty main

Replace "jaunty" with "intrepid" or "karmic" if you're running Intrepid or karmic.

To import the repositories GPG key:
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 266d5f41c7f166d8

Finally to install CrunchyFrog run:
sudo aptitude update
sudo aptitude install crunchyfrog crunchyfrog-gnome

source:http://linuxpoison.blogspot.com/2009/07/135781757114451.html

tutorial - Getting System Information (OpenSuSe) - phpSysInfo

phpSysInfo is a PHP script that displays information about the host being accessed.
It will displays things like Uptime, CPU, Memory, SCSI, IDE, PCI, Ethernet, Floppy, and Video Information.

Why I need the phpSysinfo?, Like the description above. I need to know everything about the server with one click and the important is I could check them with the browser. So, now the phpSysinfo is the best choice.

Installation:
Download phpSysInfo - here

Extract the package and copy it to the web server directory

# tar -zxvf phpSysInfo-3.0-RC8.tar.gz
# cp -r phpsysinfo /srv/www/htdocs/phpsysinfo

Rename the config.php.new to config.php (inside phpsysinfo directory)

# mv config.php.new config.php

Now go to browser and access the "index.php" from within phpSysInfo directory and you should see something like ...

source:http://linuxpoison.blogspot.com/2009/07/135781757113437.html

tutorial - How to Install Perl modules

The simplest way to get Perl modules installed is to use the CPAN module itself. If you are the system administrator and want to install the module system-wide, you'll need to switch to your root user. To fire up the CPAN module, just get to your command line and run this:

    # perl -MCPAN -e shell

If this is the first time you've run CPAN, it's going to ask you a series of questions - in most cases the default answer is fine and finally you should see the cpan> command prompt, installing a module is as easy as install MODULE::NAME - for example, to install the HTML::Template module you'd type:

    cpan> install HTML::Template

CPAN should take it from there and you'll wind up with the module installed into your Perl library.

Another way -- Let's say you're on your system command line and you just want to install a module as quickly as possible - you can run the Perl CPAN module via command line perl and get it installed in a single line:

    # perl -MCPAN -e 'install HTML::Template'

Another way -- is to grab the required file using wget. Next you'll want to unzip it with something like:

    # tar -zxvf HTML-Template-2.8.tar.gz

This will unzip the module into a directory, then you can move in and look for the README or INSTALL files. In most cases, installing a module by hand is still pretty easy, though (although not as easy as CPAN). Once you've switched into the base directory for the module, you should be able to get it installed by typing:

    # perl Makefile.PL
    # make
    # make test
    # make install

source:http://linuxpoison.blogspot.com/2009/07/13578175713204.html

tutorial - HowTo: Regular cleanup the Tempfolders (OpenSuSe)

If you would like to cleanup regularly your System, here are the steps

Launch YaST:
Choose Category “System”, then “Editor for /etc/sysconfig Files”.
Then open “System” and after that open “Cron”.
Here you find the following Entrys:

CLEAR_TMP_DIRS_AT_BOOTUP = “no”
Change to: “yes”
That means: enable or disable the Cleanup Function global.
Default: “no” (=off!)

TMP_DIRS_TO_CLEAR = “/tmp”
That you can leave.
That means: First List from Folders, that can be deleted.
Default: /tmp

MAX_DAYS_IN_TMP = 0
Change to: “1″ (=deletes all Files who are older than 24h)
Means: Max. File Lifetime in days. That is for the Files, defined in TMP_DIRS_TO_CLEAR.
Default: 0 (=disabled)

Close the Editor. You see all changes and you can close the Editor.
In the next Systemstart cron cleans up your /tmp.
You can define an second List:

LONG_TMP_DIRS_TO_CLEAR = “”
Means: second Folderlist who can be deleted.
Default: “”
Possible Option: “/var/tmp”

MAX_DAYS_IN_LONG_TMP = 0
Means: Max File Lifetime in days, for all Files who are defined in LONG_TMP_DIRS_TO_CLEAR.
Default: 0 (= disabled)
Possible Option: “28″

Based on Reinhard Haase’s HowTo on: http://tiefenwirkung.wordpress.com/2009/07/19/temporare-dateien-unter-linux/

source:http://linuxpoison.blogspot.com/2009/07/13578175719255.html

tutorial - How to query Yahoo search engine and get results from Perl script

First, like all non-standard Perl modules, you will need to install Yahoo::Search perl module from CPAN, go to cpan> console and install Yahoo::Search perl module

cpan> install Yahoo::Search

Here is the simple perl script that use the Yahoo::Search perl module to query the yahoo search engine and get the results and display it on the console...

#!/usr/bin/perl
use Yahoo::Search;

my @results = Yahoo::Search->Results(
Doc => "linuxpoison",
AppId => "YahooDemo",
Start => 0,
Count => 5);

for my $result (@results) {
printf "Result: #%d\n", $result->I + 1,
printf "Url:%s\n", $result->Url;
printf "%s\n", $result->ClickUrl;
printf "Summary: %s\n", $result->Summary;
printf "Title: %s\n", $result->Title;
print "\n";
}

The Start and Count options let you pull the results in pages. Count tells Yahoo how many results to return at once, and Start determines the starting record, Doc is the search query

AppId => "YahooDemo" is the generic demo ID through which you can query the Yahoo search engine.

Save the file with name "yahoo_search.perl" make it executable (chmod 755 yahoo_search.perl) and execute it using command perl yahoo_search.perl to see something like ...

There are still lot of thing that you can do with this script like integrating with your application, adding exception handling, formatting the output and many more but this is a good starting point.

read more about Yahoo:Search perl module

source:http://linuxpoison.blogspot.com/2009/07/135781757119874.html

tutorial - HowTo add Repositories into OpenSuSe

Go to terminal and type command : yast2 to start the yast application
Select Software Repositories.

Click on Add, select Specify URL.

Then enter a Repository Name and a URL.

Package metadata will be downloaded and parsed - this takes time depending on mirror speed, your bandwidth, the size of the repository, the speed of your system.

source:http://linuxpoison.blogspot.com/2009/07/1357817571715.html

tutorial - Internet Explorer is helping users (at last)

Spending millions of dollars, Microsoft came up with a new version of Internet Explorer (not really):

Picture Source: DeadDog

source:http://linuxpoison.blogspot.com/2009/07/135781757112640.html

tutorial - HowTo Autostart application in KDE4

The easiest way to make application autostart in KDE is to create executable script within autostart folder.

Go to your Autostart folder, in case of default Autostart path you should just execute:

cd .kde4/Autostart/

Create a new file withing this folder (the name doesn't matter) using any editor, for example you can execute: vi start.script

The first line of your new file needs to be

#!/bin/bash

This makes the file a script (you will make it executable later).

Now in each line specify what do you want KDE to execute each time it starts up. For example if we you want to start ktorrent every time, add the command into this file:

ktorrent

After putting all lines save changes to this file and exit
The last thing you need to do is make this script executable, so just execute:

chmod +x start.script

At this moment you may reboot KDE to see the changes during startup. Please take a note that this only affects current user.

source:http://linuxpoison.blogspot.com/2009/07/13578175714788.html

tutorial - Photo Collage Maker - Shape Collage

Now making photo collage in linux is made easy. This program is called shape collage and being developed in Java, offers the advantage of being multi-platform. You can download it for the linux, windows and mac os.

The shape collage is very simple and well made and with an interface very intuitive.

The process of creating the final image is very simple: you choose the photos individually (or an entire folder), you set various parameters (shape, spacing, size, colors, etc.) and you save the final image.

Feature:

* Create picture collages in less than a minute with just a few mouse clicks

    * Photos are automatically and intelligently placed using a very fast patent pending method
    * Use photos on your computer or from the web to make collages
    * Make collages in any imaginable shape or form
    * Rectangle, heart, circle, letters, or even draw your own shape!
    * Adjust the collage size, size of the photos, number of photos, and spacing between photos
    * Change the background, the colour of the border, and more
    * Save as JPEG, PNG, or Photoshop PSD
    * Cross-platform and free for personal use with no ads, viruses, spyware, stds, trial periods, or watermarks

source:http://linuxpoison.blogspot.com/2009/07/13578175715000.html

tutorial - Search Google Using UNIX Command Line Shell - Goosh

"Stefan Grothkopp has come up with a pretty neat tool called goosh. It's essentially a browser-oriented, shell-like interface that allows you to quickly search Google (and images and news) and Wikipedia and get information in a text-only format.

The interface looks quite similar to a Unix Shell and can be easily adapted by anyone who is bored using the normal web browser way of searching.

All you get is a blank screen and a prompt to enter commands. This command prompt behaves as both search box and control button. For example, if you have entered linux and pressed enter, you will be having Google search results for linux. To search, linux in Wikipedia, you will have to enter wiki linux in command prompt. Type h or help to get list of other available commands, like images to search for images only or lucky which acts like I’m feeling lucky button.

source:http://linuxpoison.blogspot.com/2009/07/135781757112350.html

tutorial - Few OpenSuSe mirrors to serve Indian requests

Recently, it became evident that users in India don’t get good mirrors. This was solved by configuring a few German and US mirrors to serve users from India.

Courtesy of Adrian Reber from Esslingen University of Applied Sciences, there is an illustrative screenshot that visualizes the efficacy of this. The world map shows accesses to their openSUSE mirror by country (live view). In openSUSE’s MirrorBrain configuration, this mirror is set up to receive German, Danish, Polish, and Indian requests.

The background is that India has bad connectivity to neighbouring countries, but good connection to German and US mirrors. Therefore, now a few German and US mirrors are configured to serve India. The screenshot below demonstrates this for the mirror of the Esslingen University of Applied Sciences:

The world map clearly shows how the mirror gets nearly exclusively German requests, as well as those from India. The same happens for some other German and some US mirrors.

Note that if a mirror in India should become available (would be nice!), it would automatically be preferred, and the other mirrors become fall-back mirrors.

source:http://linuxpoison.blogspot.com/2009/07/13578175717797.html