How To Install tcpcryptd on Ubuntu 18.04
Introduction
In this tutorial we learn how to install tcpcryptd on Ubuntu 18.04.
What is tcpcryptd
tcpcryptd is:
Tcpcrypt offers opportunistic security for TCP network traffic. All traffic between two tcpcrypt-enabled peers will be encrypted to protect against passive monitoring. tcpcrypt also exposes a strong session identifier to tcpcrypt-aware clients and servers, which can be used as a hook for authentication.
This package contains the network daemon, which will accept and wrap traffic redirected to it.
There are three methods to install tcpcryptd on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install tcpcryptd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install tcpcryptd using apt-get by running the following command:
sudo apt-get -y install tcpcryptd
Install tcpcryptd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install tcpcryptd using apt by running the following command:
sudo apt -y install tcpcryptd
Install tcpcryptd 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 tcpcryptd using aptitude by running the following command:
sudo aptitude -y install tcpcryptd
How To Uninstall tcpcryptd on Ubuntu 18.04
To uninstall only the tcpcryptd package we can use the following command:
sudo apt-get remove tcpcryptd
Uninstall tcpcryptd And Its Dependencies
To uninstall tcpcryptd and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove tcpcryptd
Remove tcpcryptd Configurations and Data
To remove tcpcryptd configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge tcpcryptd
Remove tcpcryptd configuration, data, and all of its dependencies
We can use the following command to remove tcpcryptd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge tcpcryptd
References
Summary
In this tutorial we learn how to install tcpcryptd package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
