Tutorial Proggraming Free

tutorial - Installing Apple's Safari Browser and Itunes 7 On OpenSuSe 11 With PlayOnLinux

There is no Linux version of Safari not Itunes but, can be run under Wine. We will use a tool called PlayOnLinux to install Safari under Wine and similar Itunes 7 .

With PlayOnLinux you can install lots of Windows games and some Windows applications (such as Office 2003, IE6, MS Money, etc.) on Linux. Installing Safari on Linux is good for people such as web designers who have switched to Linux but still need to test their web sites in other browsers.

1) Download PlayOnLinux using "1-click" installer - here

2) Sart "playonlinux" from command prompt using command - playonlinux, you should see something like ...

3) Click "Forward" to install any updates for playonlinux, this will also install Microsoft fonts if not installed.

4) After sucesfull operation, you should see the main window of playonlinux.

5) Now click on "Install" tab to open the installation windows from where you can navigate to different sections like "internet", "Games", etc ..., Navigate to "Internet" and select "Safari" and click "Apply" to install safari on OpenSuSe 11.0

6) Similarly navigate to the "multimedia" section and select "Itunes 7" for installation

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source:http://linuxpoison.blogspot.com/2008/11/135781757112844.html

tutorial - How to create System Image

Hard Disk Clone
Suppose you have a 40GB hard disk and a removable hard disk whose capacity is 60GB, and you want to backup all the files from the hard disk to the removable disk. With "dd", it is a very easy task. Again, suppose your hard disk's Unix device name is /dev/sda and the removable disk is /dev/sdb. The following command can copy all the content from /dev/sda to /dev/sdb:

dd if=/dev/sda of=/dev/sdb

Here, if=... sets the source and of=... sets the destination. "dd" doesn't care of the contents of the hard disk. It just reads bytes from /dev/sda and writes them into /dev/sdb. It doesn't know what are files. So, the hard disk file system and how many partitions it has are not important. For example, if /dev/sda is splitted into three partitions, the /dev/sdb will have the same partitions. i.e. "destination" is completely same with "source".

Notice: to execute "dd" you should login as "root" or switch to "root" using "su" command. And you must be careful, a small mistake may cause a serious problem!
Making a Hard Disk Image File

Most of time you don't want to make a complete duplication of your hard disk. You may prefer to creating an image file of the hard disk and save it in other storage devices. The following command will create an image file "disk1.img" in your user's directory from /dev/sda:

dd if=/dev/sda of=~/disk1.img

Since you have created an image file, you can compress it with "gzip" or "bzip2":

gzip disk1.img #generates disk1.img.gz or
bzip2 disk1.img #generates disk1.img.bz2

You can save much storage space with compression. But it will take very long time.

Partition Clone
Backing up a hard disk partition is much similar to backing up a whole hard disk. The reason is that Unix/Linux uses device name, such as /dev/sda1, /dev/sda5... to indicate the partitions. For example, if you want to create an image file from the first partition of /dev/sda, use "dd" like this:

dd if=/dev/sda1 of=~/disk2.img

Also, you can compress the image file:

gzip disk2.img

By the way, you can copy a partition to another partition completely, just set "of" to the partition's device name. For example:

dd if=/dev/sda1 of=/dev/sdb5

This command will copy all the contents from /dev/sda1 to /dev/sdb5. You must be sure that the capacity of /dev/sdb5 is larger than /dev/sda1.

Restoring from an Image File
To restore a partition or a hard disk from an image file, just exchange the arguments "if" and "of". For example, restore the whole hard disk from the image file "disk1.img":

dd if=disk1.img of=/dev/sda

Restore the first partition of /dev/sda from the image file "disk2.img":

dd if=disk2.img of=/dev/sda1

source:http://linuxpoison.blogspot.com/2008/11/135781757113560.html

tutorial - Adobe Flash Player 10 installation on OpenSuSe

With Flash Player 10, Adobe is focusing on building "expressive" applications for the Web, said Tom Barclay, Adobe senior product marketing manager for Flash Player. Applications can be deployed including online video, rich Internet applications, online games, and other interactive experiences.

Built-in support for 3D is featured, as opposed to the third-party support previously offered. Developers can work in 2D and transform 2D objects into the 3D space

Version 10 also features the ability to build custom filters and effects via Adobe Pixel Bender technology, which previously was featured in Adobe After Effects CS4 software. Developers can build motion graphics and special effects.

A new text engine in Flash Player 10 offers multilingual text capabilities and flowable text that can be laid out vertically and horizontally. Other major features in version 10 include dynamic streaming for video playback, supporting multiple bit rates, and advanced audio processing, which enables development of applications like music sequencers. For more details, click here to view the release notes for Adobe Flash Player 10

Install Adobe Flash Player 10

To install Adobe Flashplayer 10, it is important that you uninstall any previous versions of flashplayer installed on your openSUSE.

To check if flashplayer is already installed on your system

    # rpm -qa | grep flash
    flash-player-9.0.124.0-10.1

If any is uninstall as a root user as follows:

    # rpm -e flash-player

Now, download Adobe Flash Player 10 (tar.gz) from here.
Once downloaded, unzip, untar the downloaded file.

# tar -zxvf install_flash_player_10_linux.tar.gz
# cd install_flash_player_10_linux

Before installing make sure you close all your browsers and run the following command as a normal user
nikesh@poison:~> ./flashplayer-installer

Copyright(C) 2002-2006 Adobe Macromedia Software LLC. All rights reserved.
Adobe Flash Player 10 for Linux
Adobe Flash Player 10 will be installed on this machine.
You are running the Adobe Flash Player installer as the "root" user.
Adobe Flash Player 10 will be installed system-wide.
Support is available at http://www.adobe.com/support/flashplayer/
To install Adobe Flash Player 10 now, press ENTER.
To cancel the installation at any time, press Control-C.

----------- Install Action Summary -----------

Adobe Flash Player 10 will be installed in the following directory:
Mozilla installation directory = /home/nikesh/.mozilla
Proceed with the installation? (y/n/q): y

"Enter" to begin the installation and finally press "y" to complete the installation of Adobe Flash Player in your openSUSE.

To confirm successful installation launch your Firefox browser and in the address bar type “about:plugins” and press enter. This show the installed plugins of which one should be your newly installed Adobe Flashplayer 10

or go to -- http://www.macromedia.com/software/flash/about/ to check the version of the Flash player installed

source:http://linuxpoison.blogspot.com/2008/11/13578175715175.html

tutorial - Webmin installation and configuration on OpenSuSe

Webmin, developed by Jamie Cameron, acts as a comprehensive interface to the underlying applications on servers, including support for configuring applications like ftp, ssh, mail, Web, databases and more. Differing from other control panels, the core Webmin interface is intended for system administrators with root access to their servers, and includes a user-based package to enable your users (or clients) to access their own domains, email, and more, within a limited scope. Webmin supports running under SSL.

The application runs on its own mini-Web server so as to be available even when your primary Web server software is not running (i.e. Apache, etc.), and is powered by a number of Perl-based applications that directly interface with your system configuration files. According to Webmin, the entire solution is built on Perl 5 and uses no non-standard Perl modules.

Installing the RPM

You need to use RPM version of Webmin, first download the file and then run the command :

# rpm -ivh webmin-1.441-1.noarch.rpm

The rest of the install will be done automatically to the directory /usr/libexec/webmin, the administration username set to root and the password to your current root password. You should now be able to login to Webmin at the URL http://localhost:10000/

Configuring Your Firewall For Webmin

Many operating systems block access to port 10000 by default, as they have a firewall activated as part of the installation process. This may prevent you from logging into http://yourserver:10000/ from another system on your network or over the Internet.

The simplest way to open up port 10000 is to use one of the Webmin firewall management modules, such as Linux Firewall, BSD Firewall or IPFilter Firewall. However, to access this you'll need to run a brower on the same system as Webmin, and access it via the URL http://localhost:10000/.

The alternative is to login as root via SSH, and manually edit the firewall configuration file. On Redhat and derived systems, this is /etc/sysconfig/iptables, while on Debian it is /var/lib/iptables. The line you need to add is :

-A INPUT -p tcp -m tcp --dport 10000 -j ACCEPT

It should be added in the file just after similar lines which grant access to ports 80, 22 and so on.

Once this line has been added, you will need to apply the firewall configuration. This is typically done with the command /etc/init.d/iptables restart .

source:http://linuxpoison.blogspot.com/2008/10/13578175719440.html

tutorial - Unix tattoo

source:http://linuxpoison.blogspot.com/2008/11/13578175716990.html

tutorial - Linux. Join the Revolution! Wallpaper

Source: http://art.gnome.org/backgrounds/other/2751

source:http://linuxpoison.blogspot.com/2008/11/13578175718667.html

tutorial - What would happen if "The Matrix" run on Windows

source:http://linuxpoison.blogspot.com/2008/11/13578175711837.html

tutorial - Make Linux Look like Windows XP with XPGnome

Just download the zip file, Right-click it and select "Extract Here", then run the "InstallXpGnome.sh" by double-clicking it and choosing "Run"!

Changes: Icons, GTK, Metacity, Splash, GDM Theme, Panel Background, Desktop Background, Visible Desktop Icons, Nautilus Tree View, Toolbar to Icons only. Deletes all GNOME Panels and adds a new one at bottom with Start Menu, Show Desktop, Window Switcher, Notification Area, Volume Control and Clock.

And finally you should see something like ...

source:http://linuxpoison.blogspot.com/2008/11/13578175714414.html

tutorial - Screencapture made easy with GScrot

GScrot is a GTK+ 2.0 screenshot application written in perl. GScrot covers all features of common command line tools like scrot or import and adds reasonable new features combined with a comfortable GUI using the GTK+ 2.0 framework.

Features:
* take a screenshot of your complete desktop, a rectangular area or capture a website
* take screenshot directly or with a specified delay time
* save the screenshots to a specified directory and name them in a convenient way (using special wild-cards)
* GScrot is fully integrated into the Gnome Desktop (TrayIcon etc.)
* generate thumbnails directly when you are taking a screenshot and set a size level in %
* GScrot session collection
   – keep track of all screenshots during session
   – copy screeners to clipboard
   – print screenshots
   – delete screenshots
   – rename your file
* upload your files directly to Image-Hosters, retrieve all the needed links and share them with others
edit your screenshots directly using the embedded drawing tool

Ultimately an application that meets all requirement and easy to use

Installation:
First add the following repository into your sources.list. This is the line to add:

  deb http://ppa.launchpad.net/gscrot/ubuntu main intrepid

From a Terminal:

sudo aptitude update

sudo aptitude install gscrot

source:http://linuxpoison.blogspot.com/2008/11/135781757111788.html

tutorial - Wallpaper displaying weather of your city

Weather wallpaper is a program which connects to NOAA each hour to get the current weather at the specified location and creates and sets a wallpaper with the data retrieved.

Installation

If you use Debian, Ubuntu, or another distro which uses deb packages, you can download the deb (weather-wallpaper-0.2.0.deb) and simply double-click on it to launch the installer, or you can add repository to your sources.list file, so that your distro can inform you of new releases.

If you choose for the second method, open the file /etc/apt/sources.list with your favorite editor as root and add this line:

deb http://ppa.launchpad.net/zootropo/ubuntu hardy main

Update the list of packages writing sudo aptitude update on the terminal, and install the application by writing sudo aptitude install weather-wallpaper.

If you use other distribution, download the tar.gz: weather-wallpaper-0.2.0.tar.gz, uncompress it, and execute the command make install with root privileges.

Usage

To start the program run Application -- Accessories -- Weather wallpaper.

The program will retrieve the weather report from NOAA and create a wallpaper with the information for the default location: Getafe, Madrid, Spain. To change it to your current location, right click on the status icon and select preferences, where you can specify the ICAO Location Indicator for your city and select the unit system you want to use.

source:http://linuxpoison.blogspot.com/2008/11/13578175712576.html

tutorial - Clean up your filesystem using FSlint

FSlint is a toolkit to find various forms of lint on a filesystem. At the moment it reports duplicate files, bad symbolic links, troublesome file names, empty directories, non stripped executables, temporary files, duplicate/conflicting (binary) names, and unused ext2 directory blocks.

OpenSuse 11 user can use 1-click installer for FSlint from software.opensuse.org to download the YaST MetaPackage file (YMP) and launch with YaST Package Manager.

After sucesfull installation you can go to “Applications - System - File System” menu. and Launch FSlint and you should see something like ...

source:http://linuxpoison.blogspot.com/2008/11/135781757113148.html

tutorial - 400 Solitaire games on OpenSuse Linux

Ultrasol is a collection of nearly 400 different solitaire or patience games. There are games that use the 52 card International Pattern deck, games for the 78 card Tarock deck, eight and ten suit Ganjifa games, Hanafuda games, Matrix games, Mahjongg games, and games for an original hexadecimal-based deck. It includes many different sets of playing card images and all under standard solitaire type window

OpenSuse user can use 1-click installer for Ultrasol from Packman to download the YaST MetaPackage file (YMP) and launch with YaST Package Manager. This 1-click installer supports openSUSE 11.0/10.3/10.2 & openSUSE 11.1 (Beta)

After sucesfull installation you can go to “Applications - Games - Card Games“ and Launch Ultrasol and you have it all…all the 400 different solitaire games.

source:http://linuxpoison.blogspot.com/2008/11/135781757116066.html

tutorial - Multimedia Support in Fedora 10

Why doesn’t Fedora support MP3 ‘out of the box’?

Fedora cannot include support for MP3 or DVD video playback or recording. MP3 formats are patented, and the patent holders have not provided the necessary licenses. Fedora also excludes other multimedia software due to patent, copyright, or license restrictions, such as Adobe Flash Player and RealNetworks RealPlayer.

That doesn’t mean you can’t play .mp3 files in Fedora, it just takes a bit of work (not much).

Follow these instructions to get mp3 and other multimedia support on your Fedora 10.

Open a terminal and become root, then run this command:

# rpm -ivh http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm
# rpm -ivh http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm

Now, Install all other plug ins..

# yum -y install gstreamer-plugins-bad gstreamer-plugins-ugly xine-lib-extras-nonfree

After successful installation, open Amarok or any other multimedia player and try to play the mp3 file and see if all goes fine and you are able to hear the music.

XMMS

To install xmms and make it MP3-capable, start by doing this:

# yum install xmms xmms-mp3

MPEG, QuickTime, AVI, and DVDs

MPEG (the format used on DVDs) represents itself as an open standard, but most Linux distributions won't ship software that read it because of blocking patents held by MPEGLA. AVI and Apple QuickTime have proprietary codecs covered by patents, so most Linux distributions won't ship software that decodes them, either.

Unfortunately, the alternate front end xine is even more broken. It can be installed this way:

# yum install xine xine-lib libdvdcss

Doing this will also install a number of support libraries, including the libdvdcss plugin

source:http://linuxpoison.blogspot.com/2008/11/13578175715195.html

tutorial - FTP port forwarding using Iptables

Well, let’s imagine rather trivial situation: you have Linux router connected to Internet via e.g. ADSL modem and some local network comprising several computers and servers connected to that router via switches and/or Wi-Fi access points.

Done? Ok.

There is one public IP assigned to WAN interface of the router while FTP server (of course run by Linux as well) has IP something like 192.168.123.14 or 172.16.*.* or 10.*.*.*. Moreover you want to allow people to access your FTP from every corner of Internet… So, there are several ways how to apply this but let’s talk about how to achieve this by means of using port forwarding feature that is available in any router’s functions list.

So, let’s say we have the following configuration:

Internet <-> [a] router [b] <-> [c] FTP server

[a] is WAN interface with 212.213.214.215 (just an example) IP assigned to it, [b] is NIC with 192.168.0.1 and [c] is server’s interface with IP 192.168.0.2. All what we need is that users from Internet can access FTP server using 212.213.214.215 IP and default 21 TCP port.

One of the main problems is that passive mode of FTP service uses any port from range 1024 to 65535 so it’s not enough to forward 21/20 ports to FTP server and let the ball rolling. So, go to servers’ CLI and open configuration file of an FTP service. It would be vsftpd, proftpd whatever. Let’s say we have vsftpd so we have to add the following lines to /etc/vsftpd.conf:

pasv_min_port=12000
pasv_max_port=13000

When changes are saved restart vsftpd server.

Now access router’s CLI and type the following:

iptables -t nat -I PREROUTING -d 212.213.214.215 -p tcp -m tcp --dport 21 -j DNAT --to-destination 192.168.0.1

iptables -t nat -I PREROUTING -d 212.213.214.215 -p tcp -m tcp --dport 12000:13000 -j DNAT --to-destination 192.168.0.1

This will add netfilter port forwarding rules which will redirect traffic coming at routers’ public IP through 21 TCP port to FTP server and will properly handle passive FTP mode.

source:http://linuxpoison.blogspot.com/2008/11/13578175716077.html

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