[**NodeBB Forum Software**](https://nodebb.org) is powered by Node.js and built on either a Redis or MongoDB database. It utilizes web sockets for instant interactions and real-time notifications. NodeBB is compatible down to IE8 and has many modern features out of the box such as social network integration and streaming discussions.
* Our feature roadmap is hosted on the project wiki's [Version History / Roadmap](https://github.com/NodeBB/NodeBB/wiki/Version-History-%26-Roadmap)
* If you are a developer, feel free to check out the source and submit pull requests. We also have a wide array of [plugins](http://community.nodebb.org/category/7/nodebb-plugins) which would be a great starting point for learning the codebase.
* If you are a designer, [NodeBB needs themes](http://community.nodebb.org/category/10/nodebb-themes)! NodeBB's theming system allows extention of the base templates as well as styling via LESS or CSS. NodeBB's base theme utilizes [Bootstrap 3](http://getbootstrap.com/) but themes can choose to use a different framework altogether.
* If you know languages other than English you can help us translate NodeBB. We use [Transifex](https://www.transifex.com/projects/p/nodebb/) for internationalization.
* Please don't forget to **like**, **follow**, and **star our repo**! Join our growing [community](http://community.nodebb.org) to keep up to date with the latest NodeBB development.
## Requirements
NodeBB requires the following software to be installed:
* A version of Node.js at least 0.10 or greater
* Redis, version 2.8.9 or greater **or** MongoDB, version 2.6 or greater
* nginx, version 1.3.13 or greater (**only if** intending to use nginx to proxy requests to a NodeBB)
## Installation
[Please refer to platform-specific installation documentation](http://docs.nodebb.org/en/latest/installing/os.html)
## Securing NodeBB
It is important to ensure that your NodeBB and database servers are secured. Bear these points in mind:
1. While some distributions set up Redis with a more restrictive configuration, Redis by default listens to all interfaces, which is especially dangerous when a server is open to the public. Some suggestions:
* Set `bind_address` to `127.0.0.1` so as to restrict access to the local machine only
* Use `requirepass` to secure Redis behind a password (preferably a long one)
* Familiarise yourself with [Redis Security](http://redis.io/topics/security)
2. Use `iptables` to secure your server from unintended open ports. In Ubuntu, `ufw` provides a friendlier interface to working with `iptables`.
* e.g. If your NodeBB is proxied, no ports should be open except 80 (and possibly 22, for SSH access)
## Upgrading NodeBB
Detailed upgrade instructions are listed in [Upgrading NodeBB](https://docs.nodebb.org/en/latest/upgrading/index.html)
## License
NodeBB is licensed under the **GNU General Public License v3 (GPL-3)** (http://www.gnu.org/copyleft/gpl.html).
