One of the FAQs that I get is "How can I become a Linux system administrator". I got into sysadmin by mistake and learnt things the hard way i.e. by making mistakes. I do not know of any college courses that train people to be a sysadmin. There are private coaching centers that promise to train people to become a certified RedHat or Novell system administrator, but frankly I am wary of their capabilities. The main reason for my caution against these private institutes is the quality of the teachers there - anyone who is a good sysadmin will usually get picked up in the job market in a jiffy.