How To Install pki-ca on Ubuntu 18.04
Introduction
In this tutorial we learn how to install pki-ca on Ubuntu 18.04.
What is pki-ca
pki-ca is:
The Certificate Authority (CA) is a required PKI subsystem which issues, renews, revokes, and publishes certificates as well as compiling and publishing Certificate Revocation Lists (CRLs).
The Certificate Authority can be configured as a self-signing Certificate Authority, where it is the root CA, or it can act as a subordinate CA, where it obtains its own signing certificate from a public CA.
This package is a part of the PKI Core used by the Certificate System.
There are three methods to install pki-ca on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install pki-ca Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install pki-ca using apt-get by running the following command:
sudo apt-get -y install pki-ca
Install pki-ca Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install pki-ca using apt by running the following command:
sudo apt -y install pki-ca
Install pki-ca 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 pki-ca using aptitude by running the following command:
sudo aptitude -y install pki-ca
How To Uninstall pki-ca on Ubuntu 18.04
To uninstall only the pki-ca package we can use the following command:
sudo apt-get remove pki-ca
Uninstall pki-ca And Its Dependencies
To uninstall pki-ca and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove pki-ca
Remove pki-ca Configurations and Data
To remove pki-ca configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge pki-ca
Remove pki-ca configuration, data, and all of its dependencies
We can use the following command to remove pki-ca configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge pki-ca
References
Summary
In this tutorial we learn how to install pki-ca package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.