How To Install ssh-audit on Ubuntu 20.04
Introduction
In this tutorial we learn how to install ssh-audit on Ubuntu 20.04.
What is ssh-audit
ssh-audit is:
ssh-audit is a tool for ssh server auditing with the following features:
- SSH1 and SSH2 protocol server support;
- grab banner, recognize device or software and operating system, detect compression;
- gather key-exchange, host-key, encryption and message authentication code algorithms;
- output algorithm information (available since, removed/disabled, unsafe/weak/legacy, etc);
- output algorithm recommendations (append or remove based on recognized software version);
- output security information (related issues, assigned CVE list, etc);
- analyze SSH version compatibility based on algorithm information;
- historical information from OpenSSH, Dropbear SSH and libssh;
- no dependencies, compatible with Python 2.6+, Python 3.x and PyPy;
There are three methods to install ssh-audit on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ssh-audit Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ssh-audit using apt-get by running the following command:
sudo apt-get -y install ssh-audit
Install ssh-audit Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ssh-audit using apt by running the following command:
sudo apt -y install ssh-audit
Install ssh-audit 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 ssh-audit using aptitude by running the following command:
sudo aptitude -y install ssh-audit
How To Uninstall ssh-audit on Ubuntu 20.04
To uninstall only the ssh-audit package we can use the following command:
sudo apt-get remove ssh-audit
Uninstall ssh-audit And Its Dependencies
To uninstall ssh-audit and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove ssh-audit
Remove ssh-audit Configurations and Data
To remove ssh-audit configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge ssh-audit
Remove ssh-audit configuration, data, and all of its dependencies
We can use the following command to remove ssh-audit configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ssh-audit
References
Summary
In this tutorial we learn how to install ssh-audit package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
