How To Install haveged on Ubuntu 22.04
Introduction
In this tutorial we learn how to install haveged on Ubuntu 22.04.
What is haveged
haveged is:
haveged is a userspace entropy daemon which is not dependent upon the standard mechanisms for harvesting randomness for the system entropy pool. This is important in systems with high entropy needs or limited user interaction (e.g. headless servers).
haveged uses HAVEGE (HArdware Volatile Entropy Gathering and Expansion) to maintain a 1M pool of random bytes used to fill /dev/random whenever the supply of random bits in dev/random falls below the low water mark of the device.
More information about HAVEGE is available at http://www.irisa.fr/caps/projects/hipsor/
There are three methods to install haveged on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install haveged Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install haveged using apt-get by running the following command:
sudo apt-get -y install haveged
Install haveged Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install haveged using apt by running the following command:
sudo apt -y install haveged
Install haveged 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 haveged using aptitude by running the following command:
sudo aptitude -y install haveged
How To Uninstall haveged on Ubuntu 22.04
To uninstall only the haveged package we can use the following command:
sudo apt-get remove haveged
Uninstall haveged And Its Dependencies
To uninstall haveged and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove haveged
Remove haveged Configurations and Data
To remove haveged configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge haveged
Remove haveged configuration, data, and all of its dependencies
We can use the following command to remove haveged configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge haveged
References
Summary
In this tutorial we learn how to install haveged package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
