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# Hello World
- URL: https://igor.grebnev.org/hello-world/
- Published: 2026-10-27T08:32:05.000Z
- Updated: 2026-10-27T08:32:05.000Z
- Author: Igor Grebnev

This is a test something

![Guid dog Stock Photos, Royalty Free Guid dog Images | Depositphotos](https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Ftse1.mm.bing.net%2Fth%2Fid%2FOIP.0mUa5Jo9IuhozCZyL2wp1QAAAA%3Fpid%3DApi&f=1&ipt=2d141033e34bc00398e1a59866e818cd6e259d4e5653ba9c60c9fc4978cd5e45&ipo=images)

This is some of my favorite code

```python
import socket

server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server.bind(("0.0.0.0", 3478))

peers = []

print("Waiting for two clients...")

while True:
    data, addr = server.recvfrom(1024)
    print(f"Received {data.decode()} from {addr}")

    if addr not in peers:
        peers.append(addr)
    
    if len(peers) == 2:
        a, b = peers

        server.sendto(f"{b[0]}:{b[1]}".encode(), a)
        server.sendto(f"{a[0]}:{a[1]}".encode(), b)

        print("Peers introduced!")
        peers.clear()
```

This is a stun server