|Doesn't look right to me. You are not doing ranges so there should be no colons [:] in between.|
it should be 80 not 80:80 for example
You have to install the exe on your windows computer. did you do this and is it running?
I am not finding anything saying exactly what ports duckdns is using. The two examples of 80 to a web server and 22 to a ssh raspberry connection are insufficient.
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