diff --git a/Dynamic-DNS.md b/Dynamic-DNS.md
index 159e4a4..f0fe287 100644
--- a/Dynamic-DNS.md
+++ b/Dynamic-DNS.md
@@ -1,16 +1 @@
-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/
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+Please see https://vpncloud.ddswd.de/usage/dynamic-dns/
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