Skip to content
Cloudflare API
Start here
API Reference
DDoS Protection
Advanced TCP Protection
SYN Protection
Rules

Create SYN Protection rule.

POST/accounts/{account_id}/magic/advanced_tcp_protection/configs/syn_protection/rules

Create a SYN Protection rule for an account.

Security
API Token

The preferred authorization scheme for interacting with the Cloudflare API. Create a token.

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

Example:X-Auth-Email: user@example.com

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

Example:X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194
Accepted Permissions (at least one required)
DDoS Protection Write
Path ParametersExpand Collapse
account_id: string

Identifier.

maxLength32
Body ParametersJSONExpand Collapse
burst_sensitivity: string

The burst sensitivity. Must be one of ‘low’, ‘medium’, ‘high’.

mode: string

The mode for SYN Protection. Must be one of ‘enabled’, ‘disabled’, ‘monitoring’.

name: string

The name of the SYN Protection rule. Value is relative to the ‘scope’ setting. For ‘global’ scope, name should be ‘global’. For either the ‘region’ or ‘datacenter’ scope, name should be the actual name of the region or datacenter, e.g., ‘wnam’ or ‘lax’.

rate_sensitivity: string

The rate sensitivity. Must be one of ‘low’, ‘medium’, ‘high’.

scope: string

The scope for the SYN Protection rule. Must be one of ‘global’, ‘region’, or ‘datacenter’.

mitigation_type: optional string

The type of mitigation. Must be one of ‘challenge’ or ‘retransmit’. Optional. Defaults to ‘challenge’.

ReturnsExpand Collapse
errors: array of object { code, message, documentation_url, source }
code: number
minimum1000
message: string
documentation_url: optional string
source: optional object { pointer }
pointer: optional string
messages: array of object { code, message, documentation_url, source }
code: number
minimum1000
message: string
documentation_url: optional string
source: optional object { pointer }
pointer: optional string
success: true

Whether the API call was successful.

result: optional object { id, burst_sensitivity, created_on, 6 more }
id: string

The unique ID of the SYN Protection rule.

burst_sensitivity: string

The burst sensitivity. Must be one of ‘low’, ‘medium’, ‘high’.

created_on: string

The creation timestamp of the SYN Protection rule.

formatdate-time
mitigation_type: string

The type of mitigation for SYN Protection. Must be one of ‘challenge’ or ‘retransmit’.

mode: string

The mode for SYN Protection. Must be one of ‘enabled’, ‘disabled’, ‘monitoring’.

modified_on: string

The last modification timestamp of the SYN Protection rule.

formatdate-time
name: string

The name of the SYN Protection rule. Value is relative to the ‘scope’ setting. For ‘global’ scope, name should be ‘global’. For either the ‘region’ or ‘datacenter’ scope, name should be the actual name of the region or datacenter, e.g., ‘wnam’ or ‘lax’.

rate_sensitivity: string

The rate sensitivity. Must be one of ‘low’, ‘medium’, ‘high’.

scope: string

The scope for the SYN Protection rule. Must be one of ‘global’, ‘region’, or ‘datacenter’.

Create SYN Protection rule.

curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/magic/advanced_tcp_protection/configs/syn_protection/rules \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "burst_sensitivity": "burst_sensitivity",
          "mode": "mode",
          "name": "name",
          "rate_sensitivity": "rate_sensitivity",
          "scope": "scope"
        }'
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "id",
    "burst_sensitivity": "burst_sensitivity",
    "created_on": "2019-12-27T18:11:19.117Z",
    "mitigation_type": "mitigation_type",
    "mode": "mode",
    "modified_on": "2019-12-27T18:11:19.117Z",
    "name": "name",
    "rate_sensitivity": "rate_sensitivity",
    "scope": "scope"
  }
}
Returns Examples
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "id",
    "burst_sensitivity": "burst_sensitivity",
    "created_on": "2019-12-27T18:11:19.117Z",
    "mitigation_type": "mitigation_type",
    "mode": "mode",
    "modified_on": "2019-12-27T18:11:19.117Z",
    "name": "name",
    "rate_sensitivity": "rate_sensitivity",
    "scope": "scope"
  }
}