CentOS
Installing Passenger + Nginx on Red Hat 8 / CentOS 8
Step 1: enable EPEL The instructions differ depending on whether you are on Red Hat or CentOS. The second step is only necessary on Red Hat. Step 1: install EPEL package sudo yum install -y yum-utils sudo yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-$(< /etc/redhat-release