Tutorial Proggraming Free

tutorial - Multimedia support in OpenSuse 10.3 (MP3, DiVX, etc.)

If you are using KDE - Download and run (execute) this
If you are using Gnome - Download and execute this

This will enable you to have:

Flash
Java
Latest Amarok (with MP3 Support) for KDE, or Helix-Banshee for GNOME users
Encrypted DVD (libdvdcss)
Extra XINE Codecs, for DivX/Xvid etc. (libxine1)
K3b with MP3 Support (k3b-codecs)
Win 32 Codecs (w32codec-all)

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source:http://linuxpoison.blogspot.com/2007/10/135781758014268.html

tutorial - It’s time for OpenSuse 10.3, … RIP Windows Vista

On 4th Oct (OpenSuse 10.3 Release Day) - All Hell Break loose!!!

4th Oct, OpenSuse 10.3 was released to the public. The fibre lines must have been glowing red from the immense demand, and during the peek they were up at around 14 gigabits per second. The average speed was around 12 gigabit per second. The mirror servers aren’t included, this was only the downloads from Novell.

OpenSUSE 10.3 includes KDE 3.5.7 with numerous improvements and usability enhancements like the new Kickoff start menu. Also provided is a complete KDE 4 preview environment for testing and experimentation. The recently-released GNOME 2.20 is also included, with SUSE usability improvements like the SLAB menu and the new international clock applet. A new GTK-based frontend for YaST is also available now in addition to the conventional KDE-based frontend.

Although Compiz has been available in previous versions, OpenSUSE 10.3 comes with the new and improved Compiz Fusion, which has many impressive new visual effects. Improvements for virtualization are present as well. The latest version of Xen 3.1 is included and support for kernel-level virtualization enhancements.

The package management system gained performance and stability improvements as well as new updater frontends for KDE and GNOME. A new 1-Click install system brings improved support for third-party repository management.

OpenSUSE 10.3 is currently available for download from the OpenSUSE website. CD and DVD images are provided for x86, x86-64, and PowerPC architectures.

I’ve long considered SUSE to be one of the best distributions for KDE users. The openSUSE community is delivering strong improvements that tangibly enhance the user experience. This new release includes some important new features that continue to make OpenSUSE a solid contender on the desktop. Additional information about new features in OpenSUSE 10.3 is available from the openSUSE News website.

Some of the screenshot of my desktop PC running OpenSuse 10.3 with Compiz Fusion visual effects ….

source:http://linuxpoison.blogspot.com/2007/10/13578175805914.html

tutorial - Install MP3 Support in Fedora 7

Follow these instructions to get mp3 support on your Fedora Core 7.

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

# wget http://rpm.livna.org/fedora/7/i386/livna-release-7-2.noarch.rpm # rpm -ivh livna-release-7-2.noarch.rpm

Install all other plug ins..

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

source:http://linuxpoison.blogspot.com/2007/10/13578175801323.html

tutorial - Install Extra Applications in Fedora

Install Email Client (Mozilla Thunderbird)

yum -y install thunderbird

Applications -> Internet -> Thunderbird Mail Client

Install Newsreader (Pan)

yum -y install pan

Install CHM viewer (GnoCHM)

yum -y –enablerepo=dries install gnochm

Applications -> Accessories -> CHM Viewer

Install Web Authoring System (bluefish)

yum -y install bluefish

Applications –> Programming –> Bluefish Editor

Install CD/DVD Burning Application (GnomeBaker)

yum -y install gnomebaker

Applications -> Sound & Video -> GnomeBaker

Install Partition Editor (GParted)

yum -y install gparted

Applications -> System Tools -> GParted

Install Firewall (Firestarter)

yum -y install firestarter

Applications -> System Tools -> Firestarter

Install Extra Fonts

yum -y install xfonts-arabic

yum -y install xfonts-chinese

yum -y install xfonts-gujarati

yum -y install xfonts-hebrew

yum -y install xfonts-hindi

yum -y install xfonts-japanese

yum -y install xfonts-xorg-truetype

wget -c http://easylinux.info/uploads/msttcorefonts-1.3-4.noarch.rpm

rpm -ivh msttcorefonts-1.3-4.noarch.rpm

Install Desktop Applets (gDesklets)

yum -y install gdesklets

Applications -> Accessories -> gDesklets

For more info see: http://gdesklets.gnomedesktop.org/

Install XFCE

yum -y groupinstall XFCE
/etc/init.d/xfs restart

source:http://linuxpoison.blogspot.com/2007/10/13578175806067.html

tutorial - How to enable the root account in Ubuntu

As you have noticed during the Ubuntu installation there was no question about the root password, as you might have been used to see during other Linux distribution installation process. This is why the root account is inactive and can’t be used (no password configured) until we will setup a proper password for it. To do this, we simply need to run:

sudo passwd root

This will ask for a new root password and once you confirm it, you can start using the root account to login.

In case you will want to disable back the root account, just lock the root account by running:

sudo passwd -l root

source:http://linuxpoison.blogspot.com/2007/10/13578175804830.html

tutorial - Mount Samba share using fstab

To mount a Samba share when Linux system comes up after reboot edit the /etc/fstab file and put entry as follows for your Windows/Samba share:

//ntserver/share /mnt/samba smbfs username=username,password=password 0 0

For example, if you want to mount a share called //ntserver/docs then you need to write following entry in /etc/fstab file:

//192.168.0.1/share /mnt/samba smbfs username=nikesh,password=passwd123 0 0

source:http://linuxpoison.blogspot.com/2007/10/135781758019929.html

tutorial - Tune your ext3 filesystem

All examples use /dev/sda1, but you can change it to whatever you want
tune2fs command can be run on mounted ext3 volumes.

Journals

Ext3 has 3 journal modes, Journal, Ordered, and Writeback (slowest to fastest)
All it takes is a command by tune2fs.

Example:

Code: tune2fs -o journal_data_writeback /dev/sda1

This added journal_data_writeback to the default ext3 mount options for that partition. So if ext3 is mounted without options saying otherwise, or specifically with the option ‘defaults’ (rebuildfstab adds this), it will use writeback.

To get rid of that option, just add ^ before the option

Code: tune2fs -o ^journal_data_writeback /dev/sda1

Just remember not to have two journal options as default.

Note: the writeback journal is not very reliable and you may lose important data in a power outage. Check the man page of tune2fs for more information.

Reserved blocks percentage

According to the manual, reserved blocks are designed to keep your system from failing when you run out of space. Its reserves space for privileged processes such as daemons that start during init 3 and the reserved space can also prevent the filesystem from fragmenting as it fills up. On large partitions such as 300gb, however, the default 5% reserved space can be 15gb, which is quite a lot of space.

You can use the following command to reduce it to 3%, which is a bit more logical on larger filesystems.

Code: tune2fs -m3 /dev/sda1

Remember, you don’t want to remove the reserved blocks entirely, just reduce it to gain back unused space for unprivileged data.

dir_index: Use hashed b-trees to speed up lookups in large directories.

You can enable it with this command.

Code: tune2fs -O dir_index /dev/sda1

Thats not enough however, you much run e2fsck on the partition with the -D parameter to optimize the directories for dir_index.

To do this, you must unmount it, or remount as read only. If you are using the partition and can’t unmount it, switch to init 1 and run

Code: umount /dev/sda1

This will remount it as read only. You can then proceed to running

Code: fsck -Df /dev/sda1

and then

Code: reboot

fsck timers

Ext3 disk checks are long and usually uneventful. By default ext3 is scheduled for a full disk check quite often (about 32 mounts or a few weeks).

Time dependent fsck flags generally are less reliable, you can reset your CMOS on your bios or a power outage might mess with it. Its just really easy to change the time.

To disable time dependent fscking, you would run something like this:

Code: tune2fs -i0 /dev/sda1

# of mounts is more accurate, so there is no need to change the defaults (32), but if you did, this would be an example for 100 mounts.

Code: tune2fs -c100 /dev/sda1

source:http://linuxpoison.blogspot.com/2007/10/135781758019491.html

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