Ubuntu Tips And Tricks

BackBox Linux for Debian/Ubuntu

Ubuntu Natty

You can update your system by adding ppa:backbox/two to your system's software sources.

Step 1 - Open a terminal and enter:

sudo add-apt-repository ppa:backbox/two

Your system will now fetch the PPA's key. This enables your Ubuntu system to verify that the packages in the PPA have not been interfered with since they were built.

Step 2 - Now, as a one-off, you should tell your system to pull down the latest list of software from each archive it knows about, including the PPA you just added:

sudo apt-get update

Now you're ready to start installing software!

Other systems

This PPA also can be added to your system manually by copying the lines below and adding them to your system's software sources.

deb http://ppa.launchpad.net/backbox/two/ubuntu natty main

deb-src http://ppa.launchpad.net/backbox/two/ubuntu natty main

Step 1 - Open a terminal and type:

sudo nano /etc/apt/sources.list

This will open a text editor containing the list of archives that your system is currently using. Scroll to the bottom of the file and paste the lines you copied in the step above. Save the file and exit the text editor.

Step 2 - Now you need to add that key to your system so Ubuntu can verify the packages from the PPA. In your terminal, enter:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 78A7ABE1

This will now pull down the PPA's key and add it to your system.

Step 3 - Now, as a one-off, you should tell your system to pull down the latest list of software from each archive it knows about, including the PPA you just added:

sudo apt-get update

Now you're ready to start installing software!

Speed up your Ubuntu 12.04 with preload

Preload is nice little application that could make your linux system a lot faster. Preload is an adaptive readahead daemon. It monitors applications that users run, and by analyzing this data, predicts what applications users might run, and fetches those binaries and their dependencies into memory for faster startup times.

Preload packages are available for almost all linux distributions. And it is available by default in the Synaptic Package Manager and Ubuntu Software Center in Ubuntu. Alternatively, you can install it via Terminal. Type this command

sudo apt-get install preload

Thats it. Preload will run silently in the background. If you want to further tweak Preload, conf file is available at /etc/preload.conf.

Note that installing preload will not make your system boot faster and that preload is a daemon that runs with root priviledges.

And see the difference.

BackBox Linux

BackBox is a Linux distribution based on Ubuntu. It has been developed to perform penetration tests and security assessments. Designed to be fast, easy to use and provide a minimal yet complete desktop environment, thanks to its own software repositories, always being updated to the latest stable version of the most used and best known ethical hacking tools.

Download

How to: Enable screen lock in Linux Mint 13

In Linux Mint 13, the screen lock feature is disabled by default. After being idle for a while, the screen will be dimmed and you can re-activate it by moving the mouse or hit a key. For security reasons, you may want to enable the screen lock feature. Here is how to do it:

Hit Alt + F2 and run "mateconf-editor" to open the Mate configuration window. Go to apps > mate-screensaver then check the line "lock_enabled". You can also edit the line idle_delay to change the minutes of inactivity time before the screen lock is activated.

Malys Black/Blue Icons Updated to version 1.5 for Ubuntu/Linux Mint via PPA

Install Malys Blue/Black Icons on Ubuntu 12.10/12.04/11.10/11.04/10.10/10.04/Linux Mint/or any Ubuntu based Distribution

Malys UniBlue/UniBlack Icons updated to ver1.5 and added new icons in this version. For other distro's check source links.
Install Tools to change icons: Gnome-Tweak-Tool, Ubuntu-Tweak

Malys UniBlue Icons