1) Get computer

2) Install Gentoo

3) Set up ssh / webserver / mail server / irc / etc...

4) Buy domain and point to your server

5) Successfully run your own site/blog/wiki for a while, have it do neat stuff, write about and share your experiences of learning to be a sysadmin

6) While under oath, swear by the SysAdmins creed.

7) ???

8) Profit.