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Docs/Security Protection/DDoS Protection

DDoS Protection

速盾网络 Team
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  • DDoS防护

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Sudun provides always-on DDoS protection that automatically detects and mitigates attacks at the network edge. Our global network absorbs and filters malicious traffic, ensuring your applications remain available during attacks.

How DDoS Protection Works

code
Attack Traffic → Sudun Edge → Detection Engine
                                      │
                            ┌─────────┴─────────┐
                            │                   │
                      Malicious            Legitimate
                            │                   │
                        Dropped          → Origin Server

Protection Layers

Layer 3/4 Protection

Network and transport layer protection:

Attack TypeProtection
UDP FloodsAutomatic filtering
SYN FloodsSYN proxy protection
ACK FloodsStateful inspection
ICMP FloodsRate limiting
AmplificationSource validation

Layer 7 Protection

Application layer protection:

Attack TypeProtection
HTTP FloodsRequest analysis
SlowlorisConnection management
Cache BustingSmart caching
API AbuseRate limiting

Configuration

Enable DDoS Protection

json
{
  "ddos_protection": {
    "enabled": true,
    "sensitivity": "medium",
    "mode": "automatic"
  }
}

Sensitivity Levels

LevelDescription
lowHigh threshold, fewer false positives
mediumBalanced detection (recommended)
highLower threshold, faster response

Under Attack Mode

Emergency protection when under active attack:

json
{
  "under_attack_mode": {
    "enabled": true,
    "challenge_passage": 300,
    "auto_disable_after": "1h"
  }
}

Attack Analytics

Monitor attack activity in the dashboard:

  • Active Attacks: Currently mitigated attacks
  • Attack Volume: Traffic volume blocked
  • Attack Types: Breakdown by attack type
  • Top Sources: Top attacking IPs/countries

API Reference

Get DDoS Settings

bash
curl -X GET https://api.Sudun.com/v1/domains/{domain}/ddos \
  -H "Authorization: Bearer YOUR_API_KEY"

Enable Under Attack Mode

bash
curl -X PUT https://api.Sudun.com/v1/domains/{domain}/ddos/under-attack \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"enabled": true}'

Need help? Contact support@Sudun.com