How To Install policyd-weight on Ubuntu 18.04
Introduction
In this tutorial we learn how to install policyd-weight on Ubuntu 18.04.
What is policyd-weight
policyd-weight is:
policyd-weight is intended to eliminate forged envelope senders and HELOs (i.e. in bogus mails). It allows you to score DNSBLs (RBL/RHSBL), HELO, MAIL FROM and client IP addresses before any queuing is done. It allows you to REJECT messages which have a score higher than allowed, providing improved blocking of spam and virus mails. policyd-weight caches the most frequent client/sender combinations (SPAM as well as HAM) to reduce the number of DNS queries.
There are three methods to install policyd-weight 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 policyd-weight Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install policyd-weight using apt-get by running the following command:
sudo apt-get -y install policyd-weight
Install policyd-weight Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install policyd-weight using apt by running the following command:
sudo apt -y install policyd-weight
Install policyd-weight 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 policyd-weight using aptitude by running the following command:
sudo aptitude -y install policyd-weight
How To Uninstall policyd-weight on Ubuntu 18.04
To uninstall only the policyd-weight package we can use the following command:
sudo apt-get remove policyd-weight
Uninstall policyd-weight And Its Dependencies
To uninstall policyd-weight and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove policyd-weight
Remove policyd-weight Configurations and Data
To remove policyd-weight configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge policyd-weight
Remove policyd-weight configuration, data, and all of its dependencies
We can use the following command to remove policyd-weight configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge policyd-weight
References
Summary
In this tutorial we learn how to install policyd-weight package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
