Thomas LimoncelliThomas Limoncelli is a world-famous author and speaker on many topics including system administration, networking, and security. A system administrator since 1988, he now speaks at conferences around the world on topics ranging from firewall securityto time management. He has worked for Cibernet, Dean For America, Lumeta, Bell Labs / Lucent, AT&T and Mentor Graphics. Along with Christine Hogan he is co-author of the book "The Practice of System and Network Administration" from Addison-Wesley. He holds a B.A. in C.S. from Drew University, Madison, New Jersey, USA. He publishes a blog on www.EverythingSysadmin.com Read More Read Less