Fritz!Box

Dynamic DNS Entry with dtdns.com

Before configure the FB:

Create Account at https://www.dtdns.com
Create a Hostname.dtdns.net (or with other Domain)
Create a Hostname PASSWORD (if you are a registered User, if not, use the login PASSWORD )

Fritzbox:

Internet - Freigaben - Dynamic DNS

[X] Dynamic DNS benutzen

Dynamic DNS-Anbieter	Benutzerdefiniert
Update-URL	www.dtdns.com/autodns.cfm?id=<domain>&pw=<pass>&client=<username>
Domainname	Hostname.dtdns.net
Benutzername	FB-Name
Kennwort	PASSWORD
Kennwortbestätigung	PASSWORD

FB-Name is only for your statistics, you can use what you want inside “Benutzername”