Thinking about devoting a serious part of my life to linux...

I would really love to become a good sys admin; linux is very interesting to me as a popular alternative to the crap business model of MS.....i like the idea of using free software to monitor and protect a network, and I hope to make a career out of it...does anyone have any tips as to what i should concentrate on? Is debian a good distro to learn if I want to one day run a corporate network?

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