#Self-hosting

#### Definition
**Self-hosting** consist to host at home its server, its data and its services.

#### Administrator responsibilities
If you want to serve a web site, the [email system](email) and [instant messaging](XMPP), the server need to stay turn on all the time, 24h/24 and 7d/7.

Self-hosting results availability of the server to users hosted and/or to externals people consulting it.

Problems can happen making server unavailable: power outage, loss of access to the Internet…etc.

If you use the [email system](email_en), and your server is unavailable, emails for the server will be sent under 3 to 7 days.

#### Self-hosting contraints
* The rate of transmission information is low. In ADSL case, it’s often approximately 1/10 related to the rate of reception. For instance: 1 Mo/s of reception and 100 ko/s of emission;
* Availability 24/7;
* Move;

#### Self-hosting issues
* Anonymity, private life;
* Reappropriation of its data and its services;
* Decentralization, distributed networks;

<img src="https://yunohost.org/images/networks.png" width=500>

#### Others Self-hosting projects
* [ArkOS](http://arkos.io/)
* [Cozy](http://cozy.io/)
* [UBOS](http://ubos.net/)
* [Host@home](http://yeuxdelibad.net/Programmation/Hostathome.html)
* [Sovereign](https://github.com/al3x/sovereign)
* [Sandstorm](https://sandstorm.io/)
* [FreedomBox](https://fr.wikipedia.org/wiki/FreedomBox)

*Thoses projects arent finished.*