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Created Dynamic DNS (markdown)

dswd 2016-05-30 14:55:21 +02:00
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To be able to set up the VPN, at least one node needs to be reachable by an
unchanging address of hostname. This is normally not the case with common
DSL uplinks (they change addresses every day).
To mitigate this problem and get a fixed hostname, there are services called
dynamic DNS or short DDNS. There are lots of [different DDNS services][1], some
are free, some cost money.
Most of those services provide a common API that can be used by freely available
tools to update the address whenever it changes. Mainstream DSL routers have
built-in clients for this API so nothing has to be installed to set up DDNS.
Besides this unchanging address, a port has to be opened for VpnCloud. This has
to be done in the settings of the DSL router. The default port for VpnCloud
is 3210. This process is different for every router but it usually can be found
under the name of "Port forwarding" or "Exposed ports" (not "exposed host").
[1]: http://dnslookup.me/dynamic-dns/