DNS

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Introduction to DNS on Linux

Learn the basics of DNS on Linux by configuting a primary name server with NSD.

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How to Configure DNS Primary and Secondary Servers

Enhance website reliability and performance by creating a secondary name server, along with a hidden primary, using NSD on Ubuntu. ✓ Click here!

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An Introduction to DNS and User Privacy

Discover how DNS impacts user privacy and explore solutions such as DNS over HTTPS (DoH) and DNS over TLS (DoT) to enhance security, protect data, and safeguard …

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What Is a DNS Server?

What is a DNS server and how does it work? Read our guide to learn about types of DNS servers, why they’re important, and how they work. ✓ Click here!

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Register Custom DNS Name Servers

Learn how to configure custom nameservers on popular domain registrars.

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Troubleshooting DNS Issues

Sometimes DNS problems require advanced troubleshooting techniques. This guide covers helpful command line tools like dig, nslookup, and ping, along with hosts …

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Understand and Use IP Addresses

This guide will help you understand the Internet Protocol (IP) which underpins the entire Internet, as well as IP addresses, and how to describe and use them.

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Set Up Cloudflare with Linode

Learn how to use Cloudflare with a website running on Linode.

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Using Your System's hosts File

Mapping aliases, domains or hostnames to IP addresses using the system host file.

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Previewing Websites Without DNS

A guide to testing a website for a domain before the DNS records are adjusted.

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Use Unbound for Local DNS Resolution on Ubuntu 12.04 LTS (Precise Pangolin)

Configure and run your own DNS resolver using the Unbound Server on Ubuntu 12.04 LTS (Precise Pangolin).

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Provide Authoritative DNS Services with NSD on Ubuntu 12.04

Configure NSD to Handle DNS Queries on Ubuntu 12.04 (Precise Pangolin).

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Use Unbound for Local DNS Resolution on Ubuntu 11.04 (Natty)

Configure and run your own DNS resolver using the Unbound Server on Ubuntu 11.04 (Natty).

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Use Unbound for Local DNS Resolution on Fedora 15

Configure and run your own DNS resolver using the Unbound Server on Ubuntu Fedora 15.

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Authoritative DNS Services with NSD on Ubuntu 11.04

This guide shows how you can install and configure NSD, a lightweight name server daemon and alternative to BIND, to provide authoritative DNS on Ubuntu 11.04 " …

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Authoritative DNS Services with NSD on Debian 6

This guide will show you to install and configure NSD, a lightweight and open-source name server to handle authoritative DNS queries on Debian 6 "Squeeze".

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Use Unbound for Local DNS Resolution on Debian 6 (Squeeze)

Configure and run your own DNS resolver using the Unbound Server on Debian 6 (Squeeze).

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Use Unbound for Local DNS Resolution on Ubuntu 10.10 (Maverick)

Configure and run your own DNS resolver using the Unbound Server on Ubuntu 10.10 (Maverick).

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Use Unbound for Local DNS Resolution on Fedora 14

Configure and run your own DNS resolver using the Unbound Server on Ubuntu Fedora 14.

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Authoritative DNS Services with NSD on Ubuntu 10.10

This guide shows how you can install and configure NSD, a lightweight name server daemon and alternative to BIND, to provide authoritative DNS on Ubuntu 10.10 " …