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aitbc/docs/4_blockchain/6_networking.md
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Networking Configuration

Configure P2P networking for your blockchain node.

Network Settings

Firewall Configuration

# Allow P2P port
sudo ufw allow 7070/tcp

# Allow RPC port
sudo ufw allow 8080/tcp

# Allow from specific IPs
sudo ufw allow from 10.0.0.0/8 to any port 8080

Port Forwarding

If behind a NAT, configure port forwarding:

  • External port 7070 → Internal IP:7070
  • External port 8080 → Internal IP:8080

Bootstrap Nodes

Default Bootstrap Nodes

p2p:
  bootstrap_nodes:
    - /dns4/node-1.aitbc.com/tcp/7070/p2p/12D3KooW...
    - /dns4/node-2.aitbc.com/tcp/7070/p2p/12D3KooW...
    - /dns4/node-3.aitbc.com/tcp/7070/p2p/12D3KooW...

Adding Custom Bootstrap Nodes

aitbc-chain p2p add-bootstrap /dns4/my-node.example.com/tcp/7070/p2p/...

Peer Management

Connection Limits

p2p:
  max_peers: 50
  min_peers: 5
  outbound_peers: 10
  inbound_peers: 40

Peer Scoring

Nodes are scored based on:

  • Latency
  • Availability
  • Protocol compliance
  • Block propagation speed

NAT Traversal

Supported Methods

Method Description
AutoNAT Automatic NAT detection
Hole Punching UDP hole punching
Relay TURN relay fallback

Configuration

p2p:
  nat:
    enabled: true
    method: auto  # auto, hole_punching, relay
    external_ip: 203.0.113.1

Troubleshooting

Check Connectivity

aitbc-chain p2p check-connectivity

List Active Connections

aitbc-chain p2p connections

Debug Mode

aitbc-chain start --log-level debug

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