How To Install qsf on Fedora 34

qsf is Quick Spam Filter

Introduction

In this tutorial we learn how to install qsf on Fedora 34.

What is qsf

Quick Spam Filter (QSF) is an Open Source email classification filter, designed to be small, fast, and accurate, which works to classify incoming email as either spam or non-spam. To recognise spam, QSF strips the text out of the email (using MIME decoding and HTML stripping) and then splits it into tokens (words, word pairs, URLs, and so on). These tokens are then looked up in a database and analysed using the Bayesian technique to see whether the email should be classified as spam or not. QSF is designed to be run by an MDA, such as procmail.

We can use yum or dnf to install qsf on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install qsf.

Install qsf on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install qsf using dnf by running the following command:

sudo dnf -y install qsf

Install qsf on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install qsf using yum by running the following command:

sudo yum -y install qsf

How To Uninstall qsf on Fedora 34

To uninstall only the qsf package we can use the following command:

sudo dnf remove qsf

qsf Package Contents on Fedora 34

/usr/bin/qsf
/usr/lib/.build-id
/usr/lib/.build-id/23
/usr/lib/.build-id/23/3ffdcb6f78db228e0c3087c1481306f90d6fdb
/usr/share/doc/qsf
/usr/share/doc/qsf/NEWS
/usr/share/doc/qsf/README
/usr/share/doc/qsf/TODO
/usr/share/doc/qsf/postfix-howto
/usr/share/licenses/qsf
/usr/share/licenses/qsf/COPYING
/usr/share/man/man1/qsf.1.gz

References

Summary

In this tutorial we learn how to install qsf on Fedora 34 using yum and dnf.