How To Install libmcrypt4 on Debian 9
Introduction
In this tutorial we learn how to install libmcrypt4 on Debian 9.
What is libmcrypt4
libmcrypt4 is:
libmcrypt is the library which implements all the algorithms and modes found in mcrypt.
libmcrypt supports the algorithms: BLOWFISH, TWOFISH, DES, TripleDES, 3-WAY, SAFER-sk64, SAFER-sk128, SAFER+, LOKI97, GOST, RC2, RC6, MARS, IDEA, RIJNDAEL-128, RIJNDAEL-192, SERPENT, RIJNDAEL-256, CAST-128 (known as CAST5), CAST-256, ARCFOUR, ENIGMA, PANAMA, XTEA and WAKE. Block algorithms can be used in: CBC, ECB, CFB and OFB (8 bit and n bit, where n is the size of the algorithm’s block length).
More information can be found at the libmcrypt homepage http://mcrypt.sourceforge.net/ .
There are three methods to install libmcrypt4 on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libmcrypt4 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libmcrypt4 using apt-get by running the following command:
sudo apt-get -y install libmcrypt4
Install libmcrypt4 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libmcrypt4 using apt by running the following command:
sudo apt -y install libmcrypt4
Install libmcrypt4 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libmcrypt4 using aptitude by running the following command:
sudo aptitude -y install libmcrypt4
How To Uninstall libmcrypt4 on Debian 9
To uninstall only the libmcrypt4 package we can use the following command:
sudo apt-get remove libmcrypt4
Uninstall libmcrypt4 And Its Dependencies
To uninstall libmcrypt4 and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove libmcrypt4
Remove libmcrypt4 Configurations and Data
To remove libmcrypt4 configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge libmcrypt4
Remove libmcrypt4 configuration, data, and all of its dependencies
We can use the following command to remove libmcrypt4 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libmcrypt4
Dependencies
libmcrypt4 have the following dependencies:
References
Summary
In this tutorial we learn how to install libmcrypt4 package on Debian 9 using different package management tools: apt, apt-get and aptitude.
