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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

Linux 3.19: ThinkPad Muting Redone, New Dell Backlight Support, Acer Is Banging

The x86 platform driver changes for the Linux 3.19 kernel have been submitted and they include some noteworthy improvements for many Linux laptop owners. First up, the ThinkPad ACPI driver has been hugely reworked to simplify sound muting. The ThinkPad ACPI driver is now doing software muting rather than the hardware-based muting of sound. ThinkPad laptops commonly have hardware volume controls going back years for muting and volume up/down. The muting is done at the hardware volume control but is a problem as the Linux user-space will also handle the hotkey events and change the state of the other mixer. In the end you can end up in states where the hardware mixer is muted, the software mixer is unmuted, and when hitting the hardware mute key you will just switch states for both mixers. Read more

Manjaro 0.8.11 Brings Support for Linux Kernel 3.18

Manjaro 0.8.11 is a Linux distribution based on Arch Linux, which is also 100% compatible with the repositories of the base system. It's been out for a short time, but developers have already pushed a second major update for it. Read more

UNITY TO GET AN OPTION TO ALWAYS SHOW THE MENUS [UBUNTU 15.04 VIVID VERVET]

Marco's work involves adding an option to always show the Unity menus (in Unity, the menus are currently displayed on mouse over). Furthermore, this option will work with both the regular Appmenu / global menu, displayed on the top Unity panel, as well as LIM (locally integrated menus), displayed in the application titlebar: Read more

GNOME Shell 3.15.3

GNOME Shell provides core user interface functions for the GNOME 3 desktop, like switching to windows and launching applications. GNOME Shell takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a visually attractive and easy to use experience. Read more