May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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Setting up Kerberos to do authentication
User security contains three parts:
- Authentication
- Authorization
- Audit
Authentication simply means verifying who the user claims to be. There are three factors of authentication:
- Who you are
- What you know
- What you have
I am sure you have heard the term two-factor authentication everywhere. The more factors you use, the more secure authentication is. More factors also mean more inconvenience; otherwise, three-factor authentication is always used.
Let's understand it with a few examples. Let's say you go to an ATM to withdraw money. How many factors are used? You pull out your ATM card (what you have), insert it, and enter your pin (what you know). This is two-factor authentication.
How about online ...
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