OpenRSAT — A free, cross-platform alternative to Microsoft’s RSAT

OpenRSAT is a free and open source solution that allows system administrators to manage an Active Directory (AD) environment directly from any operating system: Windows, macOS, and Linux.

Designed as a lightweight alternative to Microsoft’s RSAT (Remote Server Administration Tools), OpenRSAT offers a modern, cross-platform graphical interface.

Key features

OpenRSAT already offers a wide range of essential features for effectively managing an AD.

Users and Computers 

  • Complete management of domain users, groups, and computers.
  • Creation, deletion, and modification of entries.
  • Viewing object properties (with pages adapted to the object type).
  • Password reset.
  • Moving entries in the AD directory.

 

 

Domain Name System (DNS)

  • Administration of domain DNS records.
  • List of DNS zones and records (A, AAAA, CNAME, PTR, MX, SRV, etc.).
  • Creation and deletion of DNS zones or entries.
  • Access to detailed properties for each DNS object.

Site and Services 

  • Configuration of AD replication and assignment of domain controllers to sites.
  • Listing and management of sites and subnets.
  • Creation of new sites and subnets via a simple and intuitive interface.

 

 

Object property

Contextual access to the property pages of each AD object, providing a clear and structured view of the information.

Search in the AD

A fast and efficient search tool within the directory, facilitating navigation in complex environments.

 

 

 

 

 

 

Connection profiles

 

    • Management of multiple connection profiles to administer different domains or servers.
    • Connections can be configured using several methods:
      • Domain or server name
      • Simple authentication with or without TLS
      • GSS-API authentication with or without SASL (Kerberos)

       

 

What tools does Tranquil IT use for OpenRSAT?

OpenRSAT is based on a powerful and sustainable technology foundation:
* FreePascal + Lazarus: these rapid development frameworks enable the creation of native graphical interfaces adapted to each operating system.
* mORMot2: native integration thanks to the LDAP protocol for effective interaction with Active Directory.
This combination ensures a lightweight, responsive, and portable application that is easy to maintain and upgrade.

The project is in an active phase of development. Visual anomalies or imperfect behavior may occur on the application side, without affecting the integrity of Active Directory.
However, actions correctly performed by the user are indeed applied to AD.

EIn summary, OpenRSAT already offers a solid foundation for administrators seeking a free alternative to RSAT tools. Thanks to its cross-platform compatibility and open development, it stands out as a promising solution for managing Active Directory in a modern and flexible way.

Your feedback and contributions are welcome!

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Demonstration

Group demo

06/11/2025 : 10h30 - 11h30

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