How To Install libhtml-defang-perl on Debian 9
Introduction
In this tutorial we learn how to install libhtml-defang-perl on Debian 9.
What is libhtml-defang-perl
libhtml-defang-perl is:
HTML::Defang accepts an input HTML and/or CSS string and removes any executable code including scripting, embedded objects, applets, etc., and neutralises any XSS attacks. A whitelist based approach is used which means only HTML known to be safe is allowed through.
HTML::Defang uses a custom html tag parser. The parser has been designed and tested to work with nasty real world html and to try and emulate as close as possible what browsers actually do with strange looking constructs. The test suite has been built based on examples from a range of sources such as http://ha.ckers.org/xss.html and http://imfo.ru/csstest/css_hacks/import.php to ensure that as many as possible XSS attack scenarios have been dealt with.
There are three methods to install libhtml-defang-perl 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 libhtml-defang-perl Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libhtml-defang-perl using apt-get by running the following command:
sudo apt-get -y install libhtml-defang-perl
Install libhtml-defang-perl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libhtml-defang-perl using apt by running the following command:
sudo apt -y install libhtml-defang-perl
Install libhtml-defang-perl 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 libhtml-defang-perl using aptitude by running the following command:
sudo aptitude -y install libhtml-defang-perl
How To Uninstall libhtml-defang-perl on Debian 9
To uninstall only the libhtml-defang-perl package we can use the following command:
sudo apt-get remove libhtml-defang-perl
Uninstall libhtml-defang-perl And Its Dependencies
To uninstall libhtml-defang-perl and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove libhtml-defang-perl
Remove libhtml-defang-perl Configurations and Data
To remove libhtml-defang-perl configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge libhtml-defang-perl
Remove libhtml-defang-perl configuration, data, and all of its dependencies
We can use the following command to remove libhtml-defang-perl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libhtml-defang-perl
Dependencies
libhtml-defang-perl have the following dependencies:
References
Summary
In this tutorial we learn how to install libhtml-defang-perl package on Debian 9 using different package management tools: apt, apt-get and aptitude.