Azure API - Firewall Policy Idps Signatures Overrides always returns 404

Question

Azure API - Firewall Policy Idps Signatures Overrides always returns 404

Randall Clements 5

I've been attempting to make use of the Azure management API for Firewall Policy Idps Signature Override management and continually run into a 404 return code in the learn environment or using Postman. Other API endpoints for the Azure firewall and Idps seem to work OK. Has anyone had any experience with this API endpoint?

https://learn.microsoft.com/en-us/rest/api/virtualnetwork/firewall-policy-idps-signatures-overrides/get?tabs=HTTP

Sedat SALMAN 14,180 Reputation points MVP

2023-06-29T05:02:00.6333333+00:00
GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/firewallPolicies/{firewallPolicyName}/signatureOverrides/default?api-version=2022-11-01

The parameters you need to replace are:

{subscriptionId}: The subscription credentials which uniquely identify your Microsoft Azure subscription.

{resourceGroupName}: The name of the resource group.

{firewallPolicyName}: The name of the Firewall Policy.

A successful response (HTTP 200) should return the policy's current signature overrides object. The documentation also provides examples in various programming languages including HTTP, Java, Python, Go, and JavaScript on how to use this API endpoint.

In terms of the issue you're experiencing (HTTP 404), it typically indicates that the server was unable to find the requested resource. In the context of this API, it may mean that the {subscriptionId}, {resourceGroupName}, or {firewallPolicyName} you provided does not exist or is not correct.
Randall Clements 5 Reputation points

2023-06-29T14:01:58.9366667+00:00
Yeah, I had entered all the required parameters correctly. I even have tried testing with incorrect parameters to see the difference in error messages. To give you an idea of what I'm seeing (with dummy values below) when I correctly enter all of the parameters, I receive this 404 error message:

Response with correct parameters:

{ "Message": "No HTTP resource was found that matches the request URI 'https://eastus2.nfvrp.azure.com/subscriptions/my-subscription-id/resourceGroups/my-resource-group/providers/Microsoft.Network/firewallPolicies/my-firewall-policy/signatureOverrides?api-version=2022-11-01'." }

However if I incorrectly enter the resource group, I receive a more specific error message regarding the resource group:

Response with incorrect resource group:

{ "error": { "code": "ResourceGroupNotFound", "message": "Resource group 'my-incorrect-resource-group' could not be found." } }

With an incorrect firewall policy, I receive this message:

Response with incorrect firewall policy:

{ "error": { "code": "ResourceNotFound", "message": "The Resource 'Microsoft.Network/firewallPolicies/my-incorrect-fw-policy' under resource group 'my-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix" } }

I'm only guessing here, but the 404 error message that I receive when I have correct parameters almost seems to indicate that the 'signatureOverrides' endpoint does not exist.
bnlf 0 Reputation points

2023-09-26T05:51:03.7766667+00:00

same error. can't find a solution. all idps signature overrides urls returns 404

1 answer

Your answer

Sedat SALMAN 14,180 Reputation points MVP

2023-06-29T05:02:00.6333333+00:00

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/firewallPolicies/{firewallPolicyName}/signatureOverrides/default?api-version=2022-11-01

The parameters you need to replace are:

{subscriptionId}: The subscription credentials which uniquely identify your Microsoft Azure subscription.

{resourceGroupName}: The name of the resource group.

{firewallPolicyName}: The name of the Firewall Policy.

A successful response (HTTP 200) should return the policy's current signature overrides object. The documentation also provides examples in various programming languages including HTTP, Java, Python, Go, and JavaScript on how to use this API endpoint.

In terms of the issue you're experiencing (HTTP 404), it typically indicates that the server was unable to find the requested resource. In the context of this API, it may mean that the {subscriptionId}, {resourceGroupName}, or {firewallPolicyName} you provided does not exist or is not correct.
Randall Clements 5 Reputation points

2023-06-29T14:01:58.9366667+00:00

Yeah, I had entered all the required parameters correctly. I even have tried testing with incorrect parameters to see the difference in error messages. To give you an idea of what I'm seeing (with dummy values below) when I correctly enter all of the parameters, I receive this 404 error message:

Response with correct parameters:

{ "Message": "No HTTP resource was found that matches the request URI 'https://eastus2.nfvrp.azure.com/subscriptions/my-subscription-id/resourceGroups/my-resource-group/providers/Microsoft.Network/firewallPolicies/my-firewall-policy/signatureOverrides?api-version=2022-11-01'." }

However if I incorrectly enter the resource group, I receive a more specific error message regarding the resource group:

Response with incorrect resource group:

{ "error": { "code": "ResourceGroupNotFound", "message": "Resource group 'my-incorrect-resource-group' could not be found." } }

With an incorrect firewall policy, I receive this message:

Response with incorrect firewall policy:

{ "error": { "code": "ResourceNotFound", "message": "The Resource 'Microsoft.Network/firewallPolicies/my-incorrect-fw-policy' under resource group 'my-resource-group' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix" } }

I'm only guessing here, but the 404 error message that I receive when I have correct parameters almost seems to indicate that the 'signatureOverrides' endpoint does not exist.
bnlf 0 Reputation points

2023-09-26T05:51:03.7766667+00:00

same error. can't find a solution. all idps signature overrides urls returns 404

Answer 1

Sedat SALMAN 14,180 MVP

https://techcommunity.microsoft.com/t5/azure-observability/azure-firewall-idps-monitoring/td-p/3069883

Have checked the AzureDiagnostic Logs for additional information maybe we can find a detailed log about it

AzureDiagnostics
| where ResourceType == "AZUREFIREWALLS"
| where OperationName == "AzureFirewallIDSLog"

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Azure API - Firewall Policy Idps Signatures Overrides always returns 404

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