How To Install openssl on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
2 minutes • 393 words
Introduction
In this tutorial we learn how to install openssl on Ubuntu.
What is openssl
openssl is:
This package is part of the OpenSSL project’s implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet.
It contains the general-purpose command line binary /usr/bin/openssl, useful for cryptographic operations such as:
- creating RSA, DH, and DSA key parameters;
- creating X.509 certificates, CSRs, and CRLs;
- calculating message digests;
- encrypting and decrypting with ciphers;
- testing SSL/TLS clients and servers;
- handling S/MIME signed or encrypted mail.
There are three methods to install openssl on Ubuntu. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install openssl Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install openssl using apt-get by running the following command:
sudo apt-get -y install openssl
Install openssl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install openssl using apt by running the following command:
sudo apt -y install openssl
Install openssl 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 openssl using aptitude by running the following command:
sudo aptitude -y install openssl
How To Uninstall openssl on Ubuntu
To uninstall only the openssl package we can use the following command:
sudo apt-get remove openssl
Uninstall openssl And Its Dependencies
To uninstall openssl and its dependencies that are no longer needed by Ubuntu, we can use the command below:
sudo apt-get -y autoremove openssl
Remove openssl Configurations and Data
To remove openssl configuration and data from Ubuntu we can use the following command:
sudo apt-get -y purge openssl
Remove openssl configuration, data, and all of its dependencies
We can use the following command to remove openssl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge openssl
Dependencies
openssl have the following dependencies:
References
Summary
In this tutorial we learn how to install openssl package on Ubuntu using different package management tools: apt, apt-get and aptitude.