Disclaimer!!!

Types

• client-server
• peer-to-peer
• desktop app

Desktop app

Peer-to-peer

Peer-to-peer

1. Blockchain (Bitcoin)
2. Torrent
3. Skype (good old days)
4. Git

Peer-to-peer

Pros

Cons

Client/server

1. Client (PC, smartphone)
2. Server
3. Connection between server and client

Client

Can smartphone be a server?

Connection

Old fashion server

New servers

Google data center

Cloud

XBSoftware

DHTP

DNS Server

Pros

Cons

How to choose?

Do you need to be independent from government?

Does your app have to survive in third world war?

Do you need to sell/buy drugs, hooker or people?

QUIZ

NodeJS?

The Internet?

TOR-browser?

Can server be a client?

Q&A?