Hello everyone, dear friends! Have you ever thought about how to build a p2p payment app, or did you just choose which peer-to-peer service is the most reliable and convenient for you? In this short article, we would like to consider the complexity of developing this type of mobile financial software. What do we need to get started? From my own experience, I can say for sure that these will be:

• one server with a white static IP address; — 2 computers behind NAT with Full Cone NAT connection type (or 1 computer with 2 virtual machines);
• STUN server. Herewith, Full Cone NAT is a type of network address translation in which there is an unambiguous translation between pairs of internal address: internal port and public address: public port. In the next article, we will try to cover the next steps in creating a peer-to-peer application, but for now, leave your comments to speed up the feedback.