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Linux Administration Cookbook

You're reading from   Linux Administration Cookbook Insightful recipes to work with system administration tasks on Linux

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Product type Paperback
Published in Dec 2018
Publisher Packt
ISBN-13 9781789342529
Length 826 pages
Edition 1st Edition
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Author (1):
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Adam K. Dean Adam K. Dean
Author Profile Icon Adam K. Dean
Adam K. Dean
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Toc

Table of Contents (15) Chapters Close

Preface 1. Introduction and Environment Setup 2. Remote Administration with SSH FREE CHAPTER 3. Networking and Firewalls 4. Services and Daemons 5. Hardware and Disks 6. Security, Updating, and Package Management 7. Monitoring and Logging 8. Permissions, SELinux, and AppArmor 9. Containers and Virtualization 10. Git, Configuration Management, and Infrastructure as Code 11. Web Servers, Databases, and Mail Servers 12. Troubleshooting and Workplace Diplomacy 13. BSDs, Solaris, Windows, IaaS and PaaS, and DevOps 14. Other Books You May Enjoy

Generating and using key pairs with ssh-keygen

Passwords are great, but they're also terrible.

Most people use weak passwords, and while I hope that's not you, there's always the chance that someone in your team doesn't have the discipline you do, and resorts to football99 or similar for connecting to your shared remote host.

With password access enabled, anyone might be able to connect to your server from any country by brute-forcing their way into your machine, given enough time and enough processing power.

I say "might" because as long as you use secure passwords of a decent length, passwords can be hard to guess, even with the power of a sun. Consult your company security policy when deciding these things, or read up on the best practices at the time you're writing the policy yourself.

Here's where keys come in.

SSH keys are based on...

You have been reading a chapter from
Linux Administration Cookbook
Published in: Dec 2018
Publisher: Packt
ISBN-13: 9781789342529
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