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Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium.Consequently, each different type of network medium requires a different MAC layer. On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

If you want to change your network card mac address you need to use simple utility called mac changer.MAC changer is a utility for manipulating the MAC address of network interfaces

Change your Network Card MAC Address on Ubuntu


First you need to install the language xpi that you want (Just click the .xpi to install it).Download .xpi file for Firefox/Swiftfox 2.0.0.1 from here

After you have installed the xpi file, open up a new window/tab. In the addressbar copy and paste

Change language in Firefox and Swiftfox web browsers


You can easily develop Qt4 projects in your KDE3 environment using KDevelop. You need to get Qt4 either from trunk/qt-copy or from Trolltech. Just follow the usual README in order to configure it correctly. No need to install it (that safely ensures you won't install over your existing Qt3).

How do you "use" Qt3 or Qt4? Just change a few variables. Qt4 basically only needs to have qmake first in the PATH variable. Open a new terminal session and set PATH to:

Developing a Qt4 project with KDevelop


I bought a new laptop and setup Ubuntu 6.10 on it. Needed some customization to make it really usable.

1. Fix installer issue.
2. Install Beryl.
3. Fix resolution.

The following tutorials have been cut and pasted from other peoples sites. The links to the original pages have been provide. I just wanted to make sure they were all in the same place for future reference.

Edgy Eft on Dell XPS M1210


Postfix is free and powerful MTA. You can easily configure Postfix to block spam. You need to add following directives to /etc/postfix/main.cf file:

=> disable_vrfy_command = yes : Disable the SMTP VRFY command. This stops some techniques used to harvest email addresses.

=> smtpd_delay_reject = yes : It allows Postfix to log recipient address information when rejecting a client name/address or sender address, so that it is possible to find out whose mail is being rejected.

...

Postfix configure anti spam with blacklist


Open your terminal and edit this file:

vi .gtkrc-2.02

An empty Text document will open, and you need to copy/paste the following lines...

Change Font Color in Gnome Panels


If you’ve never looked in your /tmp directory, you may want to take a gander. Sometimes it can become quite full and take up precious disk space.

If you’d like to remove all this stuff every time you shut down your box, you’ll have to do a little editing.

First, open up a CLI (Applications -> Accessories -> Terminal) and let’s edit a file called sysklogd (after backing it up of course).

Quicktip - How to remove your /tmp folder contents when you shut down your linux box


This tutorial shows how you can back up and restore hard drives and partitions with Ghost4Linux. Ghost4Linux is a Linux Live-CD that you insert into your computer; it contains hard disk and partition imaging and cloning tools similar to Norton Ghost. The created images are compressed and transferred to an FTP server instead of cloning locally.

Back Up/Restore Hard Drives And Partitions With Ghost4Linux


I’ve been meaning to upgrade one of my non-production machines to Feisty this last week and finally found some time to do it over the weekend. It’s actually upgrading now as I write this. I wanted to share one tip that I found in trying to upgrade, which could be simply due to my own hardware but it may affect others.

The Herd 1 or daily build CD would not boot on two of my less-than-production machines. Hopefully that’ll be fixed by final release (which I’m sure it will be). In the meantime I thought I would just manually update my repositories to upgrade to Feisty and see how that route worked for me. What I wanted to avoid though was having to download the entire mess of files again considering I already had the nightly build CD!

There are two ways you can do this:

Manually Adding a CDROM to Your Repositories


More in Tux Machines

Red Hat News

today's howtos

Tablets, Chromebooks, and GNU/Linux Laptops

  • Diskio Pi Wants to Be the Ultimate Open Source Tablet Powered by Raspberry Pi
    A new open source project hit Kickstarter a few days ago, and it caught our attention because it appears to be a versatile machine that's fully compatible with Raspberry Pi and Odroid single-board computers. Created by Guillaume Debray, an optician with 10+ years experience in making and selling glasses, yet a passionate computer engineer with deep knowledge of programming and hardware assembly and manufacturing processes, the Diskio Pi project wants to be the ultimate open source tablet powered by Raspberry Pi. Diskio Pi is the result of 18 months of development, and, in fact, it seems to be some sort of versatile device built on top of a single-board computer. It's currently compatible with Raspberry Pi 2, Raspberry Pi 3, Raspberry Pi Zero, Odroid C1, and Odroid C2 SBCs, and can run Ubuntu, Debian, Raspbian Pixel, or Android.
  • The new Entroware Hybris could make a reasonable Linux gaming laptop
    Entroware, the UK-based Linux hardware vendor have released two newer laptops and one of them could be a reasonable gaming unit.
  • Chrome OS' Upcoming Night Light Feature Gets "Sunset to Sunrise" Automatic Mode
    The fantastic Chrome OS team over at Google is on a rampage, and after teasing us with the revamped sign-in/lock screens and new power management settings, today François Beaufort revealed yet another cool feature for our Chromebooks. This time, the developer announced on his Google+ page that the Chrome OS team is working on implementing an automatic "Sunset to Sunrise" mode for the upcoming Night Light feature, which should improve our sleep after using a Chromebook at night and ensures reduced strain on the eyes by limiting the amount of blue light emitted by the display.
  • CrossOver for Android Lets You Run Windows Apps on Intel-Based Chromebooks
    CodeWeavers‏, the commercial company behind the well-known CrossOver for Linux and Mac application that lets users install and run Windows apps and games is still working to release an Android version. Dubbed CrossOver Android, the project has been in development for the past year, and while it's still in an Alpha state, it looks like it is already capable of running Windows software on Intel-based Chromebooks and Android tablets. Since then, the project kept updating CrossOver for Android with new features.
  • Quick Reminder For The 2017 Linux Laptop Survey

Open Source Adreno Project “Freedreno” Receives New Update

Users of Freedreno, the open-source graphics driver support for Adreno on Linux distributions, will be pleased to know that a new update has been released in the past week. Lead developer Rob Clark discussed many of the details in his blog, which highlight above all the support for Adreno 500 series GPUs. Among the highlights include compute shaders for OpenGL and OpenGL ES, improved performance and improved Linux distribution support. Read more