# Install with RPM

You can install Class 4 on any Centos environment using RPM.  We have RPM for fresh install and update. 

Each install of Class 4 comes with a forever free 500 ports.  If you need more than 500 ports, you can buy a license from <http://www.denovo.me>.

The following instruction is for Rocky 8 edition.

## Installing Class 4 Fusion Version 6

```
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
dnf module disable postgresql -y
yum -y install postgresql15-server postgresql15-contrib prefix_15 ip4r_15
yum install -y epel-release
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
dnf module disable postgresql -y
dnf config-manager --set-enabled powertools
yum install -y python3 python3-pip python3-wheel
curl -sL https://rpm.nodesource.com/setup_18.x | sudo -E bash -
yum -y install nodejs
yum install -y http://repo.denovolab.com/rocky/8/noarch/denovolab-rocky-1-1.noarch.rpm
yum -y install dnl-database
yum -y install denovolabv6-software
yum -y install dnl_live_monitor
systemctl restart nginx
systemctl restart dnl_web_helper 
```

{% hint style="info" %}
You must setup Selinux according to instruction [here](https://cookbook.denovolab.com/installation/setup-selinux) in order for UI to show up.
{% endhint %}

##


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