releasing and renewing an ip address is simple
This takes down the ethernet0 interface and then brings it back up. The default is to be set for DHCP and it automatically looks for a DHCP server when the interface comes back up.
You may have heard that Linux runs great on any old piece of crap machine. Most people are only talking about the command line interface when it comes to old hardware. You will likely notice that the system runs terribly slow under X Windows on your particular computer. You need a pretty beefy system with a fairly nice graphics card to get a GUI environment that performs more like Microsoft Windows.
You have a lot to learn if you really want to get into Linux. There is not a whole lot that transfers over from the Windows world. It's worth the effort that you put in, but it's not an easy transition.
RHCE and MCSE systems administrator
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My Linux box is:
Ubuntu 8.04, Antec Sonata II case with 450-watt PS, AMD 64 X2 4600+ (65 watt), 4GB DDR2 800 RAM, 18X Lite-On DVD burner, Asus M2NPV-VM, Nvidia GeForce 7600GT (256MB), 320GB Western Digital SATA 3.0Gbps, Logitech MX-310, Dell 18" ultrasharp LCD, Microsoft Natural Ergonomic Keyboard 4000 and 2.1 Boston Acoustics sound system..