How To Install dnss on Ubuntu 20.04

Introduction

In this tutorial we learn how to install dnss on Ubuntu 20.04.

What is dnss

dnss is:

dnss is a daemon for encapsulating DNS over HTTPS.

It can act as a DNS-to-HTTPS proxy, using https://dns.google.com as a server or anything implementing the same API.

It can also act as an HTTPS-to-DNS proxy, implementing the same HTTP API; you can use this instead of https://dns.google.com if you want more control over the servers and the final DNS server used (for example if you are in an isolated environment, such as a test lab or a private network).

There are three methods to install dnss on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install dnss Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install dnss using apt-get by running the following command:

sudo apt-get -y install dnss

Install dnss Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install dnss using apt by running the following command:

sudo apt -y install dnss

Install dnss Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install dnss using aptitude by running the following command:

sudo aptitude -y install dnss

How To Uninstall dnss on Ubuntu 20.04

To uninstall only the dnss package we can use the following command:

sudo apt-get remove dnss

Uninstall dnss And Its Dependencies

To uninstall dnss and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:

sudo apt-get -y autoremove dnss

Remove dnss Configurations and Data

To remove dnss configuration and data from Ubuntu 20.04 we can use the following command:

sudo apt-get -y purge dnss

Remove dnss configuration, data, and all of its dependencies

We can use the following command to remove dnss configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge dnss

References

• dnss website
• dnss on packages.ubuntu.com

Summary

In this tutorial we learn how to install dnss package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.