Azure Waf Logs Query. Deduplicates the results by hostname, resource, action, ruleId,

Deduplicates the results by hostname, resource, action, ruleId, URI, and message then sort from most to least hits. The Performance log is available only for the v1 SKU. ” Web Application Firewall (WAF) Query the WAF logs for all hits. Azure Monitor enables you to track diagnostic information, including WAF alerts and logs. Azure Web Application Firewall on Azure Front Door provides extensive logging and telemetry to help you understand how your web application firewall (WAF) is performing and the actions it takes. Nov 3, 2021 · For more information about log queries, see Overview of log queries in Azure Monitor. Select the categories of logs to be sent to a destination (potentially your Event Hub) and choose Destination details as "Stream Jan 13, 2026 · Learn how to configure Azure Web Application Firewall on Application Gateway and Front Door to protect web applications from OWASP Top 10 threats, bot attacks, and custom security rules. As for the matches, it shows you the condition that led the rule to be matched. You can monitor Azure Firewall using firewall logs. Jun 16, 2025 · Learn how to configure and analyze Azure Application Gateway WAF metrics for enhanced security monitoring. A basic query to view all entries might look like: This reference information for Kusto Query Language used by Azure Monitor includes elements specific to Azure Monitor and elements not supported in Azure Monitor log queries. Oct 10, 2025 · Your Web Application Firewall (WAF) sees EVERYTHING. First, I created a new service principal and assigned it the Contributor role assignment. Nov 26, 2021 · Useful Kusto Queries for Azure Frontdoor WAF Logs Recently Ive been helping with some Azure Frontdoor with WAF scenarios and below are a few queries I find useful when you have the Frontdoor configured to send log messages to Log Analytics and you want to check the firewall log to get a view of whats happening and for troubleshooting. com/en-us/azure/web-application-firewall/afds/afds-overview#waf-actions). Nov 23, 2021 · In both cases, you need insight into which exact WAF rules were blocking traffic and which specific traffic was affected by the policy. Jan 9, 2025 · How to view WAF logs in Azure Front Door to troubleshoot issues and gain insights. In this article, we will look at the Web Application Firewall (WAF) logs. Jul 29, 2020 · July 29, 2020 5-minute read application-insights • azure • paas • sitecore application-gateway • application-gateway-waf • azure • owasp • querys • sitecore • waf BACK TO BLOG OVERVIEW To archive some of the queries I created and/or found on the internet and proved to be of value, I will drop them here: Blocked requests Jan 7, 2026 · Explore how to use Azure Monitor to collect and analyze Application Gateway logs for better troubleshooting and data visualization. Connect with builders who understand your journey. Sep 7, 2018 · Continuing from the previous post Penetration Testing Your Web App with Azure Application Gateway WAF Part 2: OWASP ZAP Tool, I will show how to query the WAF logs using Azure Log Analytics as it provides near real-time monitoring. Jun 20, 2023 · Azure Web Application Firewall (WAF) combined with Microsoft Sentinel can provide security information event management for WAF resources. Troubleshoot Web Application Firewall (WAF) for Azure Application Gateway If your Web Application Firewall (WAF) is blocking requests that should be allowed, there are a few steps you can take. Jun 25, 2019 · Conclusion Azure Web Application Firewall policies for Azure Front Door integrate with Azure Monitor and Log Analytics, like most other Azure services. Start by reviewing the WAF overview and WAF configuration documentation, and ensure WAF monitoring is enabled. Azure Monitor allows you to track diagnostic information including WAF alerts and logs. Oct 14, 2025 · With Log Analytics, you can examine the data inside the firewall logs to give even more insights. Sep 28, 2020 · Depending on whether the Azure WAF policy is applied to web applications hosted on Application Gateway or Azure Front Doors the category under which the logs are collected are a little different. Mar 18, 2024 · Below are the steps to send logs to the EventHub: Create an Event Hubs Namespace and Event Hub. Jun 12, 2025 · Contains all the logs to view the requests that are logged through either detection or prevention mode of an application gateway that is configured with the web application firewall. Configuring Diagnostics logs for the Application Gateway The Azure Application Gateway can send diagnostic logs to a workspace of Log Analytics . You can also use activity logs to audit operations on Azure Firewall resources. Also takes a deep dive into logging and diagnostics using Application Gateway and Log Analytics. You can refer to How to analyze WAF rules on Azure? and Back-end health and diagnostic logs for Application Gateway As far as I understand, action_s will be either block, log, allow or redirect, depending on the rule (https://docs.

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