Understanding the Data Protection Server and Web Services in Windows Server 2025

A Data Protection Server is essential for business continuity and disaster recovery (BCDR), providing robust backup and recovery solutions. Using System Center DPM, administrators can perform application-aware backups, protect files, folders, volumes, system states, and virtual machines. Alongside data protection, Windows Server 2025 introduces advanced web service capabilities through IIS, FTP, SSL/TLS, and digital certificates, enabling secure and scalable hosting of applications and services.

Data Protection ServerDPMBCDRIISWeb ServicesFTPSSL/TLS

~2 min read • Updated Dec 17, 2025

1. Data Protection Server


The Data Protection Server plays a critical role in BCDR strategies. Using DPM, administrators can perform:


  • Application-aware backups for Exchange, SQL, and SharePoint.
  • File, folder, volume, and system state backups.
  • VM protection for Hyper-V environments (Windows and Linux).

This ensures data integrity and streamlined recovery processes.


2. Web Services in Windows Server 2025


Web services enable interoperability between applications using XML-based protocols. Two main types:


  • RESTful: Uses HTTP methods (GET, POST, PUT, DELETE) and URIs for scalable interactions.
  • SOAP: Uses structured XML messages with built-in error handling and security.

3. IIS in Windows Server 2025


IIS 10 is Microsoft’s web server platform supporting HTTP, HTTPS, FTP, FTPS, SMTP, and NNTP. New features include:


  • Support for HTTP/2 and HTTP/3.
  • PowerShell-based IIS administration.
  • Wildcard host headers and HSTS management.
  • Deployment on Nano Server and containers.

4. FTP


FTP transfers files using a client/server model. Port 21 manages control connections, while port 20 handles data transfer. Adding the FTP Server role service in IIS enables secure file management.


5. Worker Processes


Each IIS application pool has a dedicated worker process to execute web applications. Isolation ensures stability and prevents issues in one pool from affecting others.


6. Ports Overview


  • Well-Known Ports: 80 (HTTP), 443 (HTTPS), 21 (FTP), 25 (SMTP).
  • Registered Ports: 3306 (MySQL), 5432 (PostgreSQL).
  • Dynamic Ports: 49152–65535 for temporary connections.

7. SSL/TLS and Certificates


SSL/TLS encrypts communication between browsers and servers. Certificates issued by CAs authenticate websites and establish secure channels. TLS improves upon SSL with stronger encryption and validation methods.


Conclusion


Combining DPM for data protection with web technologies like IIS, FTP, and SSL/TLS creates a secure and resilient infrastructure in Windows Server 2025. These components ensure business continuity, secure communication, and efficient service hosting.


Written & researched by Dr. Shahin Siami