For starters, Adbard is a new advertising network for technology based websites based upon the promotion of Free, Libre and Open Source Software (FLOSS) friendly products and services. Adbard had the blessings of Free Software Foundation(FSF) which described Adbard as "ethical alternative to ad networks that promote proprietary software". Read the full article by FSF on Adbard.
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Nautilus is the default file browser in Ubuntu. Nautilus by default doesn't shows the size of the file. But if you need to show the size of file in Ubuntu, a simple tweak to Nautilus will do the trick. Here we have listed the different steps required. Take a look.
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SCP or Secure Copy is used for  securely transferring files between a local and a remote host or between two remote hosts.  SCP is similar to RCP in many ways. RCP is also an important tool or command in Unix/Linux based systems for transeffering files remotely.
But SCP has a much improved security.
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Secure Shell or SSH is a network protocol thats allows users to communicate through network devices securely. SSH is ideally used to login to a remote machine and excecute commands but, it can also be used for Tunneling,forwarding TCP ports and X11 connections. It can also transfer files using SCP or SFTP protocols.
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Ubuntu intsallation cd are provided free of cost by Canonical. Ubuntu is an OS based on the popular open source distribution called Debian and is promoted by the South African multimillionaire Mark Shuttleworth. Click here to get your copy of free ubuntu installation cd. You will have your FREE Ubuntu installation CD at home within weeks.
enjoy :-)  
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Ubuntu has two ways of categorizing its version.For example Ubuntu 8.04 is also known as Ubuntu Hardy Heron.Likewise Ubuntu 7.10 is called Ubuntu Gutsy Gibbon ,Ubuntu 7.04 is called Ubuntu Feisty Fawn and so on .
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Ubuntu is a stable and user friendly operating system based on Debian GNU/Linux, a popular GNU/Linux distribution. It is supported by Canonical foundation and also is a pet project of South African millionaire Mark Shuttleworth. Its name comes from the Zulu word "ubuntu", translated as humanity. Ubuntu has been rated as the most popular Linux distribution for the desktop, claiming approximately 30% of desktop Linux installations in 2007. Ubuntu is also used on some high profile servers, including those belonging to the Wikimedia Foundation. 
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XDMCP is not encrypted and is not secure outside of a firewall-protected LAN. If you are attempting to use XDMCP over the Internet, it should be used with VPN secure tunneling. Unfortunately, UDP port forwarding is not available with SSH, so XDMCP cannot be used with SSH.
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Computer name is normally given during the OS installing phases. But you could easily change the computer name with a simple GUI tool which is there in Ubuntu by default.There is a command line tool as well if you are so particular.GUI tool is simple and easy to use.Here is a step by step guide on how to change the computer name.
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• Go to terminal and type the following

               sudo pppoeconf
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