How To Install libnetfilter-conntrack3 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libnetfilter-conntrack3 on Ubuntu 18.04.
What is libnetfilter-conntrack3
libnetfilter-conntrack3 is:
libnetfilter_conntrack is a userspace library providing a programming interface (API) to the in-kernel connection tracking state table.
There are three methods to install libnetfilter-conntrack3 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 libnetfilter-conntrack3 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libnetfilter-conntrack3 using apt-get by running the following command:
sudo apt-get -y install libnetfilter-conntrack3
Install libnetfilter-conntrack3 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libnetfilter-conntrack3 using apt by running the following command:
sudo apt -y install libnetfilter-conntrack3
Install libnetfilter-conntrack3 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 libnetfilter-conntrack3 using aptitude by running the following command:
sudo aptitude -y install libnetfilter-conntrack3
How To Uninstall libnetfilter-conntrack3 on Ubuntu 18.04
To uninstall only the libnetfilter-conntrack3 package we can use the following command:
sudo apt-get remove libnetfilter-conntrack3
Uninstall libnetfilter-conntrack3 And Its Dependencies
To uninstall libnetfilter-conntrack3 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libnetfilter-conntrack3
Remove libnetfilter-conntrack3 Configurations and Data
To remove libnetfilter-conntrack3 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libnetfilter-conntrack3
Remove libnetfilter-conntrack3 configuration, data, and all of its dependencies
We can use the following command to remove libnetfilter-conntrack3 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libnetfilter-conntrack3
References
Summary
In this tutorial we learn how to install libnetfilter-conntrack3 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
