How To Install fail2ban-mail on CentOS 8
Introduction
In this tutorial we learn how to install fail2ban-mail on CentOS 8.
What is fail2ban-mail
This package installs Fail2Ban’s mail actions. These are an alternative to the default sendmail actions.
We can use yum or dnf to install fail2ban-mail on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install fail2ban-mail.
Install fail2ban-mail on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install fail2ban-mail using dnf by running the following command:
sudo dnf -y install fail2ban-mail
Install fail2ban-mail on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install fail2ban-mail using yum by running the following command:
sudo yum -y install fail2ban-mail
How To Uninstall fail2ban-mail on CentOS 8
To uninstall only the fail2ban-mail package we can use the following command:
sudo dnf remove fail2ban-mail
fail2ban-mail Package Contents on CentOS 8
/etc/fail2ban/action.d/complain.conf
/etc/fail2ban/action.d/mail-buffered.conf
/etc/fail2ban/action.d/mail-whois-lines.conf
/etc/fail2ban/action.d/mail-whois.conf
/etc/fail2ban/action.d/mail.conf
References
Summary
In this tutorial we learn how to install fail2ban-mail on CentOS 8 using yum and dnf.