HowTo: Linux Check Password Strength With Cracklib-check Command

Using the same password on different servers allows attackers to access your accounts if cracker manage to steal your password from a less secure server. This is true for online website accounts too. So solution is to create unique passwords for server accounts like your email, sftp and ssh accounts. General guideline to create a strong and unique password is as follows:

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Download Of The Day: Linux Kernel Version 3.5

The Linux kernel version 3.5 has been released and is now available for download. New features include support for hybrid graphics, security fixes, and other enhancements.

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Linux Run Command As Another User

Dear nixCraft,

I just want to know how to run Linux commands as another user or as root user?

Sincerely,

Confused About Linux commands.

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News Roundup July-20-12: Dell To Sale Ubuntu Laptop, GIMP Magazine Coming Soon and 4 More…

In this week:

Dell to sale Ubuntu laptops again

Dell will be officially re-entering the Linux laptop market. It will sell a developer edition of one of its Ultrabooks XPS laptop. It will come pre-loaded with Ubuntu 12.04 LTS. A first look at Dell’s ‘Sputnik’ Ubuntu Linux developer laptop is available here.

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Linux iotop: Check What’s Stressing And Increasing Load On Your Hard Disks

The iotop command is top like utility for disk I/O. It watches I/O usage information output by the Linux kernel (requires v2.6.20 or later) and displays a table of current I/O usage by processes or threads on the system. This post expalins how to install and use iotop to find out what’s stressing (or program names) on your hard drives under Linux operating systems.

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Debian Squeeze: Install Emerald Windows Decorator And Theme Manager

The Emerald Window Decorator is a custom window decorator shipped with Compiz Fusion that allows for theming and full composite window decorations with the use of engines. Emerald allows for all sorts of different configurations and layouts of buttons, look, title bars and frames. Emerald Window Decorator is completely independent of any desktop, and you specify your own themes to use for it. In this post I will describe how to install emerald under Debian Linux 6 amd64.

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Amazon Announces SSD Storage Based High I/O EC2 Server / Instance

Excellent news. This may come handy. In our data center we have a few servers for just two applications. These applications are just run for 2 or 3 days a month and then the rest of the time all servers in rack just sit idle. It is a waste of servers, time, energy and resources. This is a good use-cases for on-demand high I/O server(s), where I need low-latency and are an exceptionally good host for NoSQL databases such as MongoDB.

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compgen: An Awesome Command To List All Linux Commands

Ever want to list all the Linux commands (including bash shell aliases and functions) you could run on the server / workstation? Look now further. Try compgen command.

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pinfo: Read Linux Info Documentation in Colors

You can display man pages in colors. Similarly, you can display info pages in colors. The info command is used under Linux or Unix to read multipage documentation and act as help viewer working on a command line interface, useful when there is no GUI available on the server. The info command processes info files. All info files are are in Texinfo format. You get the documentation tree. pinfo is a little known tool that can display info pages in colors.

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Debian Linux 6: Install and Configure Compiz Eye Candy Effects

Compiz is an OpenGL compositing windows manager for the X Window system. It use 3D graphics hardware to create desktop effects such as a rotating desktop cubes, a minimization animation and many other effects are created using plugins. In this post I will explain how to install compiz on Debian Linux 6 with NVIDIA GPU. However, instructions should also work on Debian lenny and Intel 3000 or latest Intel 4000 video cards.

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