How to Install Virtualmin with Multiple PHP and MySQL Versions on CentOS 8

Deploying a production web hosting stack on CentOS 8 with Virtualmin requires modern multi-PHP support (allowing legacy applications to run PHP 5.6 or 7.2 while modern apps run PHP 7.4 or 8.0) and reliable database server management via Remi repositories.

Stack: CentOS 8 • Virtualmin 6.x • Remi Software Collections (SCL) • MySQL 8.0 • Multi-PHP

1. Fix Perl UTF-8 Locale Warnings

cat << 'EOF' > /etc/environment
LANGUAGE=en_US.utf8
LC_ALL=en_US.utf-8
LANG=en_US.utf8
LC_TYPE=en_US.utf8
EOF

2. Enable EPEL and Remi Repositories

dnf install epel-release -y
dnf install https://rpms.remirepo.net/enterprise/remi-release-8.rpm -y
dnf module reset php -y
dnf module enable php:remi-7.4 -y

3. Installing Parallel PHP Versions

dnf install php56-php-fpm php72-php-fpm php74-php-fpm php80-php-fpm -y

4. Install Virtualmin

wget http://software.virtualmin.com/gpl/scripts/install.sh
sh install.sh