March 2015
Beginner
236 pages
5h 23m
English
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Auditing a package
In this example, we'll extend our openssh module to audit the version installed. We'll then downgrade the package so that the version changes. Afterwards, we can verify whether the audit worked as expected.
Tip
In a production environment, it would make sense to audit at least the sshd binary along with the package. It's quite possible for the attacker to change the binary without even touching the package. Auditing the package is more useful to find system administrators upgrading packages to unauthorized versions by accident.
Modifying the module to audit
First, make sure the Vagrant machine is running. If you need to restart your Vagrant machine, see the first exercise to get it running.
Once it is running, go ahead and SSH it ...
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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.