How To Install testssl.sh on Debian 9
Introduction
In this tutorial we learn how to install testssl.sh on Debian 9.
What is testssl.sh
testssl.sh is:
testssl.sh is a free command line tool which checks a server’s service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more.
Key features
Clear output: you can tell easily whether anything is good or bad
Ease of installation: It works for Linux, Darwin, FreeBSD and MSYS2/Cygwin out of the box: no need to install or configure something, no gems, CPAN, pip or the like.
Flexibility: You can test any SSL/TLS enabled and STARTTLS service, not only webservers at port 443
Toolbox: Several command line options help you to run YOUR test and configure YOUR output
Reliability: features are tested thoroughly
Verbosity: If a particular check cannot be performed because of a missing capability on your client side, you’ll get a warning
Privacy: It’s only you who sees the result, not a third party
Freedom: It’s 100% open source. You can look at the code, see what’s going on and you can change it. Heck, even the development is open (github)
There are three methods to install testssl.sh 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 testssl.sh Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install testssl.sh using apt-get by running the following command:
sudo apt-get -y install testssl.sh
Install testssl.sh Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install testssl.sh using apt by running the following command:
sudo apt -y install testssl.sh
Install testssl.sh 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 testssl.sh using aptitude by running the following command:
sudo aptitude -y install testssl.sh
How To Uninstall testssl.sh on Debian 9
To uninstall only the testssl.sh package we can use the following command:
sudo apt-get remove testssl.sh
Uninstall testssl.sh And Its Dependencies
To uninstall testssl.sh and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove testssl.sh
Remove testssl.sh Configurations and Data
To remove testssl.sh configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge testssl.sh
Remove testssl.sh configuration, data, and all of its dependencies
We can use the following command to remove testssl.sh configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge testssl.sh
Dependencies
testssl.sh have the following dependencies:
References
Summary
In this tutorial we learn how to install testssl.sh package on Debian 9 using different package management tools: apt, apt-get and aptitude.