tutorial 9ku

tutorial - Front-end for the ClamAV antivirus toolkit - klamav/Clamtk

One of the more popular Linux anti-virus tools is ClamAV. But to most users (especially new users) ClamAV is a bit challenging to use. That is where KlamAV comes in. KlamAV does an outstanding job of making ClamAV a user-friendly tool.

Before using klamav you need to have Clamav antivirus installed:
To install ClamAV on your ubuntu, open the terminal and type: sudo apt-get install clamav

OpenSuse user can use "1-click" installer to install Clamav
OpenSuse 11.1 - here
OpenSuse 11.0 - here

By default, ClamAV does not include any graphical environment and all the operation needs to be done using command line now to make life easy for the user we got two graphical application, Klamav for KDE and Clamtk for Gnome

Ubuntu:
If you're using KDE environment, type in the terminal:sudo apt-get install klamav
If you're using GNOME environment, type in the terminal: sudo apt-get install clamtk

OpenSuse user can use "1-click" installer to install klamav
OpenSuse 11.1 - here
OpenSuse 11.0 - here

OpenSuse user can use "1-click" installer to install Clamtk
OpenSuse 11.1 - here
OpenSuse 11.0 - here

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source:http://linuxpoison.blogspot.com/2009/06/13578175717330.html

tutorial - How to disable loading of unnecessary kernel modules

What exactly is a kernel module? A Kernel Module is a program that is not actually compiled into the Linux kernel but is loaded separately. Kernel modules enable you to extend the capabilities of the kernel without the need to build extra functionality directly into the kernel image. A good example is the device driver.

There are certain advantages with using kernel modules as opposed to having the drivers compiled into the kernel. They can be unloaded (rmmod) and reloaded (modprobe, insmod) at any time, allowing you to pass different parameters to them rather than specify them once on bootup as kernel parameters or update them without rebooting. The fewer drivers you need, the fewer modules you need to load and the less memory Linux needs to operate. Also, to upgrade a modularized driver you just need to recompile the module, whereas if the driver is part of the kernel then you have to recompile the kernel. For hotpluggable buses like USB, the modules can be loaded on demand rather than all at once.

You can see what modules are already loaded into the kernel by running lsmod, which gets its information by reading the file /proc/modules

Many time it happens that there are lots of module gets loaded into memory and which are not required and hence its better if we disable loading of such module to enhance the performance of the system.

How to disable loading of unnecessary kernel modules
* Open the shell and type command lsmod to see what are the modules that are loaded.

* Check the value in section "used by", if the value is "0" it means that the this kernel module is not been used by any of the application/process and it's unnecessary occupying the space in the memory, the best way to know about such module to use google/bing search engine and if you feel that this module is not required you can simply unload it, for example if you don;t have the floppy drive then why to load floppy module :)

* Ok, so you have figure out what all module you want to blocking loading at the time of booting, go to console and open file /etc/modprobe.d/blacklist and add the kernel module that you want to disable loading, example shown below where I am disabling the loading of floppy & ipv6 kernel module.

blacklist ipv6
blacklist floppy

This tip can also use it to disable ipv6 on linux unless you wanted to just add the line

blacklist ipv6

source:http://linuxpoison.blogspot.com/2009/06/135781757110668.html

tutorial - Twitter client for KDE 4.2 - KDEtwitter

KDEtwitter is a Twitter widget in KDE 4.2 which allows you to quickly:

* Post messages directly from your desktop, without accessing your Twitter home page
* Get notified when you receive updates

You don’t have to configure anything other than your account and the password associated with it and you’re ready to tweet.

When you click Add Widgets (on top right corner of your desktop), a window labeled Add Widgets appears. It contains a list of all the plasmoids installed on your system, and each one has a description below its name.

And from this list you can select KDEtwitter and add to your desktop and after configuring the twitter username/password you should see something like ... from where you can receive & send messages.

source:http://linuxpoison.blogspot.com/2009/06/13578175715842.html