May 2015
Intermediate to advanced
278 pages
5h 34m
English
Content preview from Chef Infrastructure Automation Cookbook Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Enabling passwordless sudo
You have secured your sshd so that your users can only log in with their own user accounts, instead of root. Additionally, you made sure that your users do not need passwords, but have to use their private keys for authentication.
However, once authenticated, users want to administer the system. That's why it is a good idea to have sudo installed on all boxes. Sudo enables non-root users to execute commands as root, if they're allowed to. Sudo will log all such command executions.
To make sure that your users don't need passwords here, you should configure sudo for passwordless logins. Let's take a look at how to do this.
Getting ready
Make sure that you have a cookbook named my_cookbook and that the run_list of your node ...
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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.