How To Install mod_security on Fedora 34

mod_security is Security module for the Apache HTTP Server

Introduction

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

What is mod_security

ModSecurity is an open source intrusion detection and prevention engine for web applications. It operates embedded into the web server, acting as a powerful umbrella - shielding web applications from attacks.

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

Install mod_security 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 mod_security using dnf by running the following command:

sudo dnf -y install mod_security

Install mod_security 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 mod_security using yum by running the following command:

sudo yum -y install mod_security

How To Uninstall mod_security on Fedora 34

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

sudo dnf remove mod_security

mod_security Package Contents on Fedora 34

/etc/httpd/conf.d/mod_security.conf
/etc/httpd/conf.modules.d/10-mod_security.conf
/etc/httpd/modsecurity.d
/etc/httpd/modsecurity.d/activated_rules
/etc/httpd/modsecurity.d/local_rules
/etc/httpd/modsecurity.d/local_rules/modsecurity_localrules.conf
/usr/lib/.build-id
/usr/lib/.build-id/39
/usr/lib/.build-id/39/2aa0fc6e2d6771855d0ea62b233b6abfbbbbbf
/usr/lib64/httpd/modules/mod_security2.so
/usr/share/doc/mod_security
/usr/share/doc/mod_security/CHANGES
/usr/share/doc/mod_security/LICENSE
/usr/share/doc/mod_security/NOTICE
/usr/share/doc/mod_security/README.md
/var/lib/mod_security

References

Summary

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