DDoS Configuration
Dashboard Setup
- Navigate to Security > DDoS
- Select HTTP DDoS or Network-layer DDoS
- Configure sensitivity & action per ruleset/category/rule
- Apply overrides with optional expressions (Enterprise Advanced)
- Enable Adaptive DDoS toggle (Enterprise/Enterprise Advanced, requires 7 days traffic history)
Rule Structure
interface DDoSOverride {
description: string;
rules: Array<{
action: "execute";
expression: string; // Custom expression (Enterprise Advanced) or "true" for all
action_parameters: {
id: string; // Managed ruleset ID (discover via api.md)
overrides: {
sensitivity_level?: "default" | "medium" | "low" | "eoff";
action?: "block" | "managed_challenge" | "challenge" | "log"; // log = Enterprise Advanced only
categories?: Array<{
category: string; // e.g., "http-flood", "udp-flood"
sensitivity_level?: string;
}>;
rules?: Array<{
id: string;
action?: string;
sensitivity_level?: string;
}>;
};
};
}>;
}Expression Availability
| Plan | Custom Expressions | Example |
|---|---|---|
| Free/Pro/Business | ✗ | Use "true" only |
| Enterprise | ✗ | Use "true" only |
| Enterprise Advanced | ✓ | ip.src in {...}, http.request.uri.path matches "..." |
Sensitivity Mapping
| UI | API | Threshold |
|---|---|---|
| High | default |
Most aggressive |
| Medium | medium |
Balanced |
| Low | low |
Less aggressive |
| Essentially Off | eoff |
Minimal mitigation |
Common Categories
http-flood,http-anomaly(L7)udp-flood,syn-flood,dns-flood(L3/4)
Override Precedence
Multiple override layers apply in this order (higher precedence wins):
Zone-level > Account-level
Individual Rule > Category > Global sensitivity/actionExample: Zone rule for /api/* overrides account-level global settings.
Adaptive DDoS Profiles
Availability: Enterprise, Enterprise Advanced
Learning period: 7 days of traffic history required
| Profile Type | Description | Detects |
|---|---|---|
| Origins | Traffic patterns per origin server | Anomalous requests to specific origins |
| User-Agents | Traffic patterns per User-Agent | Malicious/anomalous user agent strings |
| Locations | Traffic patterns per geo-location | Attacks from specific countries/regions |
| Protocols | Traffic patterns per protocol (L3/4) | Protocol-specific flood attacks |
Configure by targeting specific adaptive rule IDs via API (see api.md#typed-override-examples).
Alerting
Configure via Notifications:
- Alert types:
http_ddos_attack_alert,layer_3_4_ddos_attack_alert,advanced_*variants - Filters: zones, hostnames, RPS/PPS/Mbps thresholds, IPs, protocols
- Mechanisms: email, webhooks, PagerDuty
See api.md for API examples.