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Ruby on Rails is a popular new framework for developing web applications. Since Ruby on Rails includes a built-in web server for development purposes, there is no need to install a separate web server.

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If you are running a virtual machine on your computer, you may want to access that virtual machine from another computer. Let’s use an example: Say you have an Ubuntu virtual machine with Apache running on port 80, and you want to show other people on your network to access the website you are hosting.

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VMware Workstation includes a network utility that allows you to manage the virtual networks. Typically virtual machines will use NAT (Network Address Translation) to automatically assign a virtual IP address that hides behind your host address, but the default range of 192.168.200.0/24 may not work for everybody.

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One of the best extensions for Firefox is Tab Mix Plus because of the enhancements to the tab browsing that can’t be found elsewhere. There is also another extension called tab browser extensions that provides similar functionality.

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There’s a bug in Windows XP where sometimes the system tray tooltips and popup notifications will show up behind the taskbar, or behind other windows. This is really annoying when you want to use a tooltip.

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Outlook 2003 has an automatic completion for any email address that you try to type into the To or CC fields. This feature does not pull from the contacts or address book, because you may have tried to email somebody that wasn’t in your contact list, and it will still add that to the auto complete list.

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Ubuntu has an easy way to keep your system synchronized with the internet time servers. This is especially useful on older computers that may have problems with the system clock losing time.

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Ubuntu has a number of terminal emulators that you can use, including xterm and the gnome terminal. If you install the kubuntu desktop package you can also use konsole under ubuntu.

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Ubuntu Linux has a default browser functionality that will automatically launch the correct browser when clicking on a link in a gnome gui application. It’s easy enough to set the default browser using the GUI tools, but sometimes it’s easier to set it using the command line client.. for instance, if you are trying to remotely administer a machine.

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gFTP is a great ftp client for Ubuntu Linux that provides both a GUI based experience as well as a command line client. There’s an easy way to switch between using the default ftp client and using gftp-text. First you’ll want to make sure that you’ve installed gFTP.

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