Tom Limoncelli is an American system administrator, author, and speaker. A system administrator and network engineer since 1987, he speaks at conferences around the world on topics ranging from firewall security to time management.

(“Tom Limoncelli” 2021)

Among other things:

  • everythingsysadmin.com
“Tom Limoncelli.” 2021. Wikipedia, August. https://en.wikipedia.org/w/index.php?title=Tom_Limoncelli&oldid=1037850468.