How To Install ykval-export on Ubuntu 21.04

One-liner install command

For those in a hurry, here's a one-line installation command:

sudo apt-get update && sudo apt -y install yubikey-val

But if you are interested in the detailed steps with descriptions, the following information is for you.

What is ykval-export and what are the ways to install it?

Before beginning this tutorial, you will need access to a server or computer running Ubuntu 21.04. This guide was written specifically with a server running Ubuntu 21.04 in mind, although it should also work on older, supported versions of the operating system.

Also, make sure you are running a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin.

There are several ways to install ykval-export on Ubuntu 21.04. You can use (links are clickable):

In the following sections, we will describe each method in detail. You can choose one of them or refer to the recommended one.

Install ykval-export using apt-get

First, update apt database with apt-get using the following command.

sudo apt-get update

After updating apt-get database, You can install ykval-export using apt by running the following command:

sudo apt -y install yubikey-val

Install ykval-export using apt

Because ykval-export is available in Ubuntu 21.04’s default repositories, it is possible to install it from these repositories using the apt packaging system.

To begin, update apt database with apt using the following command.

sudo apt update

After updating apt database, You can install ykval-export using apt by running the following command:

sudo apt -y install yubikey-val

Install ykval-export 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 21.04. Update apt database with aptitude using the following command.

sudo aptitude update

After updating aptitude database, You can install ykval-export by running the following command:

sudo aptitude -y install yubikey-val

How to upgrade (update) a single package ykval-export using apt-get?

First, you will need to update packages index. Run update command as usual:

sudo apt-get update

Next, to upgrade only the ykval-export, e.g. single package, you should use the following format with the apt-get command/apt command:

sudo apt-get --only-upgrade install yubikey-val

Note that this command will not install any new packages! If you wish to install the package if it doesn't exist you may leave out --only-upgrade part.

sudo apt-get install yubikey-val

How To Uninstall ykval-export from Ubuntu 21.04

To uninstall only the ykval-export package you can execute the following command:

sudo apt-get remove yubikey-val

Uninstall ykval-export and all its dependencies

To uninstall ykval-export and its dependencies that are no longer needed by Ubuntu 21.04, you can use the command below:

sudo apt-get -y autoremove yubikey-val

Remove ykval-export with all configurations and data

To remove ykval-export configuration and data from your system you can run the following purge command:

sudo apt-get -y purge yubikey-val

Remove ykval-export completely (configurations, data and all of its dependencies)

And lastly, you can run the next command to remove absolutely everything related to ykval-export package, e.g.: configurations, data and all of its dependencies. Just use this command:

sudo apt-get -y autoremove --purge yubikey-val

Extra info and code examples

YubiKeys are USB tokens that act like keyboards and generate one-time passwords. This package contains a server written in PHP for use with Apache to validate YubiKey OTPs. The architecture is that a set of validation servers manage the token counters and respond to OTP requests from clients, and utilize a set of back-end YubiKey Key Storage Module (KSM) servers to perform the actual AES key decryption. The protocols are openly published. There are two implementations of the KSM available: yubikey-ksm (PHP, secrets on disk in database) and yhsm-yubikey-ksm (Python, for use with secrets protected by the YubiHSM hardware). Sometimes the KSM runs on another server than the validation server, but it is possible to run both on the same machine. After installing and configuring this package you will have a YubiKey validation server up and running via Apache.

Conclusion

You now have a full guide on how to install ykval-export using apt, apt-get and aptitude tools. Also, we showed how to update as a single package and different ways to uninstall the ykval-export from Ubuntu 21.04.

See also: