April 2016
Beginner
174 pages
3h 48m
English
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Summary
Security groups are fundamental for controlling access to instances by allowing users to create inbound and outbound rules that limit traffic to and from instances based on specific addresses, ports, protocols, and even other security groups. Default security groups are created by Neutron for every tenant or project, and these allow all outbound communication and restrict inbound communication to instances in the same default security group. Subsequent security groups are locked down even further, allowing only outbound communication and not allowing any inbound traffic at all unless modified by the user.
Security group rules are implemented on the compute nodes themselves and are triggered when traffic enters or leaves a virtual network ...
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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.