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- <h2>Contact<a class="anchor" id="Contact" href="#Contact"></a></h2>
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+## About dn42
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+dn42 is a big dynamic VPN network, which employs Internet technologies ([BGP](http://en.wikipedia.org/wiki/Bgp), whois database, DNS, etc). Participants connect to each other using network tunnels ([GRE](http://en.wikipedia.org/wiki/Generic_Routing_Encapsulation), [OpenVPN](http://en.wikipedia.org/wiki/Openvpn), [Tinc](http://tinc-vpn.org/), IPsec), and exchange routes thanks to the Border Gateway Protocol. Network addresses are assigned in the 172.22.0.0/15 range, and private AS numbers are used: see [registry](Services-Whois). See the [About] page for more information.
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+A number of services are provided on the network: see [internal] (only available from within dn42). Also, dn42 is interconnected with other networks, such as [ChaosVPN](http://wiki.hamburg.ccc.de/ChaosVPN) or some Freifunk networks.
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+<h2>Contact<a class="anchor" id="Contact" href="#Contact"></a></h2>
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<h3>Mailing list<a class="anchor" id="Mailing-list" href="#Mailing-list"></a></h3>
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<li><a href="http://www.wolfplex.org">Wolfplex</a></li>
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<li><a href="http://www.smrsh.net/">smrsh</a></li>
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<li><a href="https://www.hackspace-jena.de/">Hackspace Jena e.V.</a></li>
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-</ul>
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+</ul>
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