How to uninstall conntrack from Ubuntu

Uninstall conntrack

To uninstall just conntrack package itself from Ubuntu execute on terminal:

sudo apt-get remove conntrack

Uninstall conntrack and it's dependent packages

To uninstall the conntrack package and any other dependant package which are no longer needed on Ubuntu.

sudo apt-get autoremove conntrack

Purging conntrack

If you also want to delete configuration and/or data files of conntrack from Ubuntu then this will work:

sudo apt-get purge conntrack

To delete configuration and/or data files of conntrack and it's dependencies from Ubuntu then execute:

sudo apt-get autoremove --purge conntrack

conntrack package information

name conntrack
section net
description

Program to modify the conntrack tables

website conntrack-tools.netfilter.org/ 
maintainer ubuntu-devel-discuss@lists.ubuntu.com

More information about apt-get remove

Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on Debian, Ubuntu and other Linux distributions. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

apt-get is the command-line tool for handling packages, and may be considered the user's "back-end" to other tools using the APT library.

apt-get remove is identical to install except that packages are removed instead of installed. Note that removing a package leaves its configuration files on the system. If a plus sign is appended to the package name (with no intervening space), the identified package will be installed instead of removed.

See Also

How to install conntrack package on Ubuntu