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"Access denied with code 403." when using Web application firewall

DO HOANG KIEM 180 Reputation points
2023-08-18T16:49:47.25+00:00

I encountered many 403 error when using my app on Azure. Below is the message from log? Can you tell me how to fix them?

*Access denied with code 403. Match of ipMatch

Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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  1. Ryan Hill 30,281 Reputation points Microsoft Employee Moderator
    2023-08-24T02:31:26.2033333+00:00

    @DO HOANG KIEM

    That specific error indicates the request was blocked by the Web Application Firewall (WAF) because the client IP didn't match the IP range specified in the current rules.

    To resolve, you can either update the WAF rule to include this client IP or whitelist the IP in the WAF configuration.

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