> For the complete documentation index, see [llms.txt](https://cqube.sunbird.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cqube.sunbird.org/cqube-v-4.1-beta/prerequisites-for-installation-process.md).

# Prerequisites for Installation process

#### Prerequisites to install cQube:

* ubuntu 18.04 (supported)
* 32GB of System RAM (minimum requirement)
* 8 core CPU (minimum requirement)
* Domain name (with SSL)
* 1 TB Storage

#### Reverse proxy rules (public routing):

* Port 4200 should be proxied to the '/'
* Port 8080 should be proxied to the '/auth'
* Port 3000 should be proxied to the '/api'
* Port 8000 should be proxied to the '/data'

#### Nginx - cQube server firewall configuration

* Port 4200 should be open from Nginx to the cQube server
* Port 8080 should be open from Nginx to the cQube server
* Port 3000 should be open from Nginx to the cQube server
* Port 8000 should be open from Nginx to the cQube server

#### OpenVPN - cQube server firewall configuration

* Port 9000 should be open from OpenVPN to the cQube server

![cQube Nginx Routes](https://720888978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Miy6UN-HyTKGo2Sjcky%2Fuploads%2Fgit-blob-eefbe569623e4e86d6bff1a8160a37160cfdbf96%2Fcqube_nginx_routes.png?alt=media)

#### Reverse proxy rules (internal routing):

The following ports have to be configured in the Nginix server with reverse proxy:

* Port 4201 should be proxied to the '/'
* Port 3001 should be proxied to the '/api'

#### Nginx - cQube server firewall configuration

* Port 4201 should be open from Nginx to the cQube server
* Port 3001 should be open from Nginx to the cQube server

#### Openvpn - cQube server firewall configuration

* Port 80 should be open from openvpn to the Nginx


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