---
title: DNS Firewall Cluster Details
---
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[API Reference](https://developers.cloudflare.com/api)
[DNS Firewall](https://developers.cloudflare.com/api/resources/dns_firewall)
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# DNS Firewall Cluster Details
GET/accounts/{account\_id}/dns\_firewall/{dns\_firewall\_id}
Show a single DNS Firewall cluster 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)
`DNS Firewall Write``DNS Firewall Read`
##### P ath ParametersExpand Collapse
account\_id: string
Identifier.
maxLength32
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(params)%20default%20%3E%20(param)%20account_id%20%3E%20(schema)>)
dns\_firewall\_id: string
Identifier.
maxLength32
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(params)%20default%20%3E%20(param)%20dns_firewall_id%20%3E%20(schema)>)
##### ReturnsExpand Collapse
errors: array of object {code, message, documentation\_url, source }
code: number
minimum1000
Link to this property
message: string
Link to this property
documentation\_url: optional string
Link to this property
source: optional object {pointer }
pointer: optional string
Link to this property
Link to this property
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(network%20schema)%20%3E%20(property)%20errors>)
messages: array of object {code, message, documentation\_url, source }
code: number
minimum1000
Link to this property
message: string
Link to this property
documentation\_url: optional string
Link to this property
source: optional object {pointer }
pointer: optional string
Link to this property
Link to this property
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(network%20schema)%20%3E%20(property)%20messages>)
success: true
Whether the API call was successful.
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(network%20schema)%20%3E%20(property)%20success>)
result: optional object {id, deprecate\_any\_requests, dns\_firewall\_ips, 10 more }
id: string
Identifier.
maxLength32
Link to this property
deprecate\_any\_requests: boolean
Whether to refuse to answer queries for the ANY type
Link to this property
dns\_firewall\_ips: array of FirewallIPs
Link to this property
ecs\_fallback: boolean
Whether to forward client IP (resolver) subnet if no EDNS Client Subnet is sent
Link to this property
maximum\_cache\_ttl: number
By default, Cloudflare attempts to cache responses for as long as indicated by the TTL received from upstream nameservers. This setting sets an upper bound on this duration. For caching purposes, higher TTLs will be decreased to the maximum value defined by this setting.
This setting does not affect the TTL value in the DNS response Cloudflare returns to clients. Cloudflare will always forward the TTL value received from upstream nameservers.
maximum36000
minimum30
Link to this property
minimum\_cache\_ttl: number
By default, Cloudflare attempts to cache responses for as long as indicated by the TTL received from upstream nameservers. This setting sets a lower bound on this duration. For caching purposes, lower TTLs will be increased to the minimum value defined by this setting.
This setting does not affect the TTL value in the DNS response Cloudflare returns to clients. Cloudflare will always forward the TTL value received from upstream nameservers.
Note that, even with this setting, there is no guarantee that a response will be cached for at least the specified duration. Cached responses may be removed earlier for capacity or other operational reasons.
maximum36000
minimum30
Link to this property
modified\_on: string
Last modification of DNS Firewall cluster
formatdate-time
Link to this property
name: string
DNS Firewall cluster name
maxLength160
minLength1
Link to this property
negative\_cache\_ttl: number
This setting controls how long DNS Firewall should cache negative responses (e.g., NXDOMAIN) from the upstream servers.
This setting does not affect the TTL value in the DNS response Cloudflare returns to clients. Cloudflare will always forward the TTL value received from upstream nameservers.
maximum36000
minimum30
Link to this property
ratelimit: number
Maximum number of DNS queries per second that will be forwarded to your upstream nameservers. The limit is enforced per server, where each server receives a fraction of the configured value. The actual aggregate rate for a data center may vary depending on how many servers are present. Responses served from cache do not count toward this limit. Set to null to disable rate limiting.
maximum1000000000
minimum100
Link to this property
retries: number
Number of retries for fetching DNS responses from upstream nameservers (not counting the initial attempt)
maximum2
minimum0
Link to this property
upstream\_ips: array of UpstreamIPs
minLength1
Link to this property
attack\_mitigation: optional AttackMitigation { enabled, only\_when\_upstream\_unhealthy }
Attack mitigation settings
enabled: optional boolean
When enabled, automatically mitigate random-prefix attacks to protect upstream DNS servers
Link to this property
only\_when\_upstream\_unhealthy: optional boolean
Only mitigate attacks when upstream servers seem unhealthy
Link to this property
Link to this property
[Link to this property](<#(resource)%20dns_firewall%20%3E%20(method)%20get%20%3E%20(network%20schema)%20%3E%20(property)%20result>)
### DNS Firewall Cluster Details
HTTP
HTTPTypeScriptPythonGoTerraform
```
curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/dns_firewall/$DNS_FIREWALL_ID \
-H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"
```
200 example
```
{
"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": "023e105f4ecef8ad9ca31a8372d0c353",
"deprecate_any_requests": true,
"dns_firewall_ips": [
"203.0.113.1",
"203.0.113.254",
"2001:DB8:AB::CF",
"2001:DB8:CD::CF"
],
"ecs_fallback": false,
"maximum_cache_ttl": 900,
"minimum_cache_ttl": 60,
"modified_on": "2014-01-01T05:20:00.12345Z",
"name": "My Awesome DNS Firewall cluster",
"negative_cache_ttl": 900,
"ratelimit": 600,
"retries": 2,
"upstream_ips": [
"192.0.2.1",
"198.51.100.1",
"2001:DB8:100::CF"
],
"attack_mitigation": {
"enabled": true,
"only_when_upstream_unhealthy": false
}
}
}
```
##### Returns Examples
200 example
```
{
"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": "023e105f4ecef8ad9ca31a8372d0c353",
"deprecate_any_requests": true,
"dns_firewall_ips": [
"203.0.113.1",
"203.0.113.254",
"2001:DB8:AB::CF",
"2001:DB8:CD::CF"
],
"ecs_fallback": false,
"maximum_cache_ttl": 900,
"minimum_cache_ttl": 60,
"modified_on": "2014-01-01T05:20:00.12345Z",
"name": "My Awesome DNS Firewall cluster",
"negative_cache_ttl": 900,
"ratelimit": 600,
"retries": 2,
"upstream_ips": [
"192.0.2.1",
"198.51.100.1",
"2001:DB8:100::CF"
],
"attack_mitigation": {
"enabled": true,
"only_when_upstream_unhealthy": false
}
}
}
```