azure-firewall
Expert knowledge for Azure Firewall development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when deploying Azure Firewall SKUs, tuning rules/DNAT/SNAT, scaling IPs/SNAT ports, enabling TLS inspection, or integrating hub-spoke/forced tunneling, and other Azure Firewall related development tasks. Not for Azure Firewall Manager (use azure-firewall-manager), Azure Virtual Network (use azure-virtual-network), Azure Virtual WAN (use azure-virtual-wan), Azure Web Application Firewall (use azure-web-application-firewall).
- Installs
- 199
- Last 24h
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/microsoftdocs/agent-skills --skill azure-firewall- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads azure-firewall automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Azure Firewall Skill
This skill provides expert guidance for Azure Firewall. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.
How to Use This Skill
IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g.,
L35-L120), useread_filewith the specified lines. For categories with file links (e.g.,[security.md](security.md)), useread_fileon the linked reference file
IMPORTANT for Agent: If
metadata.generated_atis more than 3 months old, suggest the user pull the latest version from the repository. Ifmcp_microsoftdocstools are not available, suggest the user install it: Installation Guide
This skill requires network access to fetch documentation content:
- Preferred: Use
mcp_microsoftdocs:microsoft_docs_fetchwith query stringfrom=learn-agent-skill. Returns Markdown. - Fallback: Use
fetch_webpagewith query stringfrom=learn-agent-skill&accept=text/markdown. Returns Markdown.
Category Index
| Category | Lines | Description |
|---|---|---|
| Troubleshooting | L37-L42 | Diagnosing Azure Firewall issues using known limitations, packet captures, and Sentinel log analysis for malware detection and traffic investigation. |
| Best Practices | L43-L48 | Guidance on Azure Firewall DNS proxy behavior/caching and techniques to tune rules, throughput, and configuration for better performance and lower latency. |
| Decision Making | L49-L56 | Guidance on choosing the right Azure Firewall SKU by features and performance, plus step-by-step deployment of Azure Firewall Basic using the portal and policy. |
| Architecture & Design Patterns | L57-L67 | Design patterns for Azure Firewall deployment: hub-spoke routing, forced tunneling, SLB integration, management NIC use, AVD/M365 protection, and DNAT for overlapping private networks. |
| Limits & Quotas | L68-L79 | Configuring Azure Firewall scale limits: multiple public IPs, SNAT port scaling with NAT Gateway/V2, prescaling capacity ranges, and TCP session idle timeout settings. |
| Security | L80-L93 | Configuring Azure Firewall security: TLS inspection and CA certs, threat intelligence, roles/access, DNAT and hybrid protection, AKS protection, and best-practice secure deployments. |
| Configuration | L94-L116 | Configuring Azure Firewall behavior: rules, IP groups, DNS/DNAT/SNAT, HTTP headers, FTP/SQL/FQDN tags, zones, maintenance windows, and monitoring/logging via PowerShell, Bicep, ARM, Terraform. |
| Integrations & Coding Patterns | L117-L121 | Configuring Azure Firewall to securely access Azure Storage via SFTP, including required rules, network paths, and integration patterns for SFTP traffic. |
| Deployment | L122-L131 | Guides for deploying Azure Firewall (Standard/Premium, dual stack), automating via Bicep/ARM/Terraform, changing SKUs, and integrating with Azure DDoS Protection. |
Troubleshooting
| Topic | URL |
|---|---|
| Detect and investigate malware using Sentinel with Azure Firewall logs | https://learn.microsoft.com/en-us/azure/firewall/detect-malware-with-sentinel |
| Troubleshoot Azure Firewall using packet capture | https://learn.microsoft.com/en-us/azure/firewall/packet-capture |
Best Practices
| Topic | URL |
|---|---|
| Understand Azure Firewall DNS proxy behavior and caching | https://learn.microsoft.com/en-us/azure/firewall/dns-details |
| Optimize Azure Firewall performance and latency | https://learn.microsoft.com/en-us/azure/firewall/firewall-best-practices |
Decision Making
| Topic | URL |
|---|---|
| Select the appropriate Azure Firewall SKU | https://learn.microsoft.com/en-us/azure/firewall/choose-firewall-sku |
| Deploy Azure Firewall Basic with portal and policy | https://learn.microsoft.com/en-us/azure/firewall/deploy-firewall-basic-portal-policy |
| Choose the right Azure Firewall SKU by features | https://learn.microsoft.com/en-us/azure/firewall/features-by-sku |
| Choose Azure Firewall SKU based on performance benchmarks | https://learn.microsoft.com/en-us/azure/firewall/firewall-performance |
Architecture & Design Patterns
| Topic | URL |
|---|---|
| Design multi-hub and spoke routing with Azure Firewall | https://learn.microsoft.com/en-us/azure/firewall/firewall-multi-hub-spoke |
| Design Azure Firewall forced tunneling architectures | https://learn.microsoft.com/en-us/azure/firewall/forced-tunneling |
| Design Azure Firewall with Standard Load Balancer | https://learn.microsoft.com/en-us/azure/firewall/integrate-lb |
| Use Azure Firewall Management NIC for control traffic | https://learn.microsoft.com/en-us/azure/firewall/management-nic |
| Architect Azure Firewall protection for Azure Virtual Desktop | https://learn.microsoft.com/en-us/azure/firewall/protect-azure-virtual-desktop |
| Design Azure Firewall protection for Microsoft 365 traffic | https://learn.microsoft.com/en-us/azure/firewall/protect-office-365 |
| Use private IP DNAT for overlapped Azure networks | https://learn.microsoft.com/en-us/azure/firewall/tutorial-private-ip-dnat |
Limits & Quotas
Security
Configuration
Integrations & Coding Patterns
| Topic | URL |
|---|---|
| Access Azure Storage via SFTP through Azure Firewall | https://learn.microsoft.com/en-us/azure/firewall/firewall-sftp |
Deployment
| Topic | URL |
|---|---|
| Change Azure Firewall Standard and Premium SKUs | https://learn.microsoft.com/en-us/azure/firewall/change-sku |
| Deploy and upgrade Azure Firewall dual stack mode | https://learn.microsoft.com/en-us/azure/firewall/deploy-dual-stack-firewall |
| Deploy and configure Azure Firewall Premium environments | https://learn.microsoft.com/en-us/azure/firewall/premium-deploy |
| Deploy Azure Firewall and IP Groups using Bicep | https://learn.microsoft.com/en-us/azure/firewall/quick-create-ipgroup-bicep |
| Deploy Azure Firewall and IP Groups via ARM template | https://learn.microsoft.com/en-us/azure/firewall/quick-create-ipgroup-template |
| Deploy Azure Firewall and IP Groups using Terraform | https://learn.microsoft.com/en-us/azure/firewall/quick-create-ipgroup-terraform |
| Deploy Azure Firewall with Azure DDoS Protection | https://learn.microsoft.com/en-us/azure/firewall/tutorial-protect-firewall-ddos |
FAQ
What does the azure-firewall skill do?
Expert knowledge for Azure Firewall development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when deploying Azure Firewall SKUs, tuning rules/DNAT/SNAT, scaling IPs/SNAT ports, enabling TLS inspection, or integrating hub-spoke/forced tunneling, and other Azure Firewall related development tasks. Not for Azure Firewall Manager (use azure-firewall-manager), Azure Virtual Network (use azure-virtual-network), Azure Virtual WAN (use azure-virtual-wan), Azure Web Application Firewall (use azure-web-application-firewall).
How do I install azure-firewall?
Run npx skills add https://github.com/microsoftdocs/agent-skills --skill azure-firewall in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/azure-firewall/ (personal) or .claude/skills/azure-firewall/ (project).
Which AI agents can use azure-firewall?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is azure-firewall safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains azure-firewall?
It is published by microsoftdocs in microsoftdocs/agent-skills. It has 199 recorded installs.
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