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+#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_en) and [instant messaging](XMPP_en), 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/)
+* [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.*