Two-Factor Authentication (2FA) for Webmin with Google Authenticator

First install Perl Modules :

https://blog.olineit.com/2022/09/install-perl-cpan-module-in-centos-8.html

Then follow the instructions as given through the URL:

https://devtutorial.io/how-to-install-two-factor-authentication-2fa-for-webmin-p2845.html

Install Perl CPAN Module in CentOS 8

dnf install perl-CPAN

dnf install "@Development Tools"

perl -MCPAN -e 'install Authen::OATH'

cpan -i Geo::IP OR 

cpan Geo::IP

cpan 

cpan[1]> install Log::Log4perl

OR

You need gcc.:

yum install gcc

Get CPAN:

yum install CPAN

Configure CPAN ( just run CPAN ):

CPAN

After CPAN is configured:

install Authen::OATH [module in CPAN shell, which takes a long time to complete.]

When Authen::OATH is successfully installed, configure 2FA in WebMin.