Systems Administrators (SAs) need some Whoops! time.
In addition to knowledge breadth and depth, system administrators need experience; this is, perhaps, the defining aspect between senior and other levels of technology creators, managers and maintainers. Been there – done that. Some less than positive examples (usually experienced early as a SA):
- made a small tweak/system change that caused everything else to fail OR
- accidentally locked out all users and/or auto-magic processes