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Benefits of Azure AD Application Proxy and On-Premises Application Connector

  • By Amit
  • June 5, 2025

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Using Azure AD Application Proxy and the On-Premises Application Proxy Connector provides several benefits for securely accessing on-premises applications from anywhere. Here are the key advantages:

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1. Secure Remote Access Without VPN or DMZ

  • Users can securely access on-premises web applications without a VPN.
  • Eliminates the need for exposing internal applications directly to the internet or setting up a DMZ (Demilitarized Zone).

2. Seamless Azure AD Authentication & SSO

  • Supports Azure AD authentication, allowing users to log in using their Azure credentials.
  • Single Sign-On (SSO) integrates with existing authentication mechanisms like:
    • Integrated Windows Authentication (IWA)
    • Kerberos
    • SAML-based authentication

3. Conditional Access & Security Controls

  • Enforce security policies using Azure AD Conditional Access, such as:
    • Multi-Factor Authentication (MFA)
    • Device Compliance (e.g., requiring managed devices)
    • Location-based access restrictions
  • Helps prevent unauthorized access.

4. Simplified Deployment & Maintenance

  • No need to expose the application directly to the internet.
  • Lightweight connector software (installed on a Windows Server) handles all requests.
  • No need to modify firewall rules—only outbound traffic on ports 80 and 443 is required.

5. Load Balancing & High Availability

  • Multiple Application Proxy Connectors can be installed for load balancing and failover.
  • Automatic traffic distribution between available connectors ensures uptime.

6. Supports Legacy & Modern Web Apps

  • Works with traditional on-prem apps (like SharePoint, SAP, and internal dashboards).
  • Can also integrate with cloud-based applications for hybrid setups.

7. Cost-Effective Solution

  • Reduces infrastructure costs by removing the need for additional VPN appliances, reverse proxies, or external firewalls.
  • No need for separate identity management—uses Azure AD.

8. Compliance & Logging

  • Provides audit logs and monitoring in Azure AD for compliance tracking.
  • Integrates with Microsoft Defender for Cloud Apps for additional security insights.

9. Supports Hybrid Cloud Scenarios

  • Enables hybrid access to on-prem applications while gradually moving to the cloud.
  • Works alongside Azure AD B2B/B2C for external users.

10. Easy Scalability

  • Can support multiple applications without major architectural changes.
  • Easily integrate new apps as business needs evolve.

Conclusion

Azure AD Application Proxy and Application Proxy Connector provide secure, seamless, and scalable remote access to on-premises applications without the complexity of traditional solutions like VPNs or on-prem web gateways. This enhances security, user experience, and IT efficiency while reducing costs.

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About CloudThat

CloudThat is a leading provider of Cloud Training and Consulting services with a global presence in India, the USA, Asia, Europe, and Africa. Specializing in AWS, Microsoft Azure, GCP, VMware, Databricks, and more, the company serves mid-market and enterprise clients, offering comprehensive expertise in Cloud Migration, Data Platforms, DevOps, IoT, AI/ML, and more.

CloudThat is the first Indian Company to win the prestigious Microsoft Partner 2024 Award and is recognized as a top-tier partner with AWS and Microsoft, including the prestigious ‘Think Big’ partner award from AWS and the Microsoft Superstars FY 2023 award in Asia & India. Having trained 650k+ professionals in 500+ cloud certifications and completed 300+ consulting projects globally, CloudThat is an official AWS Advanced Consulting Partner, Microsoft Gold Partner, AWS Training PartnerAWS Migration PartnerAWS Data and Analytics PartnerAWS DevOps Competency PartnerAWS GenAI Competency PartnerAmazon QuickSight Service Delivery PartnerAmazon EKS Service Delivery Partner AWS Microsoft Workload PartnersAmazon EC2 Service Delivery PartnerAmazon ECS Service Delivery PartnerAWS Glue Service Delivery PartnerAmazon Redshift Service Delivery PartnerAWS Control Tower Service Delivery PartnerAWS WAF Service Delivery PartnerAmazon CloudFrontAmazon OpenSearchAWS DMSAWS Systems ManagerAmazon RDS, and many more.

WRITTEN BY Amit

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