December 2017
Intermediate to advanced
410 pages
11h 5m
English
Content preview from Enterprise Cloud Security and Governance
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SUID
Set User ID upon execution (SUID), as the name suggests, is one of the special set of permissions that can be given to files in Linux systems.
Generally, whenever we run a program, the program runs as the user who is executing it.
So, taking an example case, in a normal scenario, if user Praveen is executing a program called bigroll, then the program will inherit all the permissions of the user Praveen, as seen in the following image:
With help of SUID, we can temporarily run a program with the owner of the file instead of the one who is executing it. The question might arise as to why it is important to do this in the first place. Let's ...
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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.