October 2017
Intermediate to advanced
382 pages
11h 26m
English
Content preview from Mastering ArcGIS Enterprise Administration
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Password entropy
Password entropy is the measurement of how unpredictable a password is and is based on the character set used (uppercase, lowercase, digits, symbols) and password length. Since password entropy measures unpredictability, it can, therefore, predict how difficult a password is to determine, or crack, as it is commonly referred to. Password complexity has often been characterized using the concept of entropy (NIST, 2017). Conventional wisdom has always said that passwords must have some form of complexity, usually in the form of one number, one upper case letter, one lowercase letter, and one symbol (sound familiar?). Enter password length.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.