well since you plan to make it a web server then you'll need to learn about the one the only the SUPREME RULLER of the KNOWN CYBERSPACE...APACHE.
apache is the web server that you'll use. Every distro has apache so it doesn't really matter which one you choose. I would recommend you SuSE 8.2 professional because it is relatively easy to install and use. It also has all the software that you'll need to set up any kind of server.
But stick to the application. Learn how to use apache and don't really bother on the linux.
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