Opening ports for ftp?

Question

Computer networks

Please tell the "teapot" there is a home network, a regular router and a computer connected to the router, I want to organize an ftp server on the computer (where do I need to open ports to access my server on the router or in the windows firewall settings?) and let's say if I open a port in windows whether it is necessary to open on a router too or not? I can not understand......

Answer 1

Here and there. In addition, to access from the Internet, you need the provider to issue a "white" IP. Many issue IP addresses like 10.х.х.х, which are actually located behind the provider's NAT, and it will be impossible to reach "outside" (from another provider, or even another provider's network).
And yet, if the "static IP address" service is not ordered (usually it is paid), then the IP will change periodically (and every time the router is connected to the Internet), respectively, it will also be difficult to reach outside. The solution is to use services like DynDNS and the like.

Answer 2

Let's start with a simple one - what is indicated in the WAN settings of the router?