Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Linux Administration Cookbook

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

Arrow left icon
Product type Paperback
Published in Dec 2018
Publisher Packt
ISBN-13 9781789342529
Length 826 pages
Edition 1st Edition
Tools
Arrow right icon
Author (1):
Arrow left icon
Adam K. Dean Adam K. Dean
Author Profile Icon Adam K. Dean
Adam K. Dean
Arrow right icon
View More author details
Toc

Table of Contents (15) Chapters Close

Preface 1. Introduction and Environment Setup FREE CHAPTER 2. Remote Administration with SSH 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

Modern domain name resolution on Linux

In this section, we're going to look at domain name resolution, and specifically the software installed on a typical CentOS box that enables the lookup of addresses when presented with a domain.

We'll look at /etc/resolv.conf and domain name resolution methods on current generation Linux systems (such as network manager). We're going to test the connection to our DNS server, and run DNS queries to see if it's working.

This section assumes a basic understanding of domain names and IP addresses.

Getting ready

Connect to centos1 and check that your domain resolution is already working by pinging an address.

I'm in the UK, so I default to using the BBC for my tests...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image