---
title: "MFA Server Requirements"
slug: "mfa-server-requirements"
updated: 2026-02-02T18:12:10Z
published: 2026-02-02T18:12:10Z
canonical: "mfa.rapididentity.com/mfa-server-requirements"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://mfa.rapididentity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MFA Server Requirements

The latest MFA server versions have been tested and verified to work with the latest Windows and SQL Server versions. Below, you can find the minimum requirements for the RapidIdentity MFA Server software.

## Server Requirements

- Microsoft® Windows Server 2016 or greater (including Server 2025)

🚫 Server 2012 R2 is functional but no longer recommended because [it has reached end of support from Microsoft as of October 10, 2023](https://learn.microsoft.com/en-us/lifecycle/announcements/windows-server-2012-r2-end-of-support).
- Microsoft SQL Server or SQL Express 2016 or higher (including SQL 2025)
- 4GB RAM (8GB if SQL is installed on the same server)
- 120 MB of available hard disk space for the RI MFA server software
- .NET Framework 4.7.2 or greater
- Visual C++ Redistributable for Visual Studio 2015, 2017, and 2019
- RapidIdentity MFA may be deployed to physical servers, virtual servers, or both
- RapidIdentity MFA may be deployed to servers operating as Domain Controllers or member servers
  - Note: While possible, it's not recommended to deploy MFA on a DC.
- [IIS must be installed](/v1/docs/installing-iis)

## Firewall Ports

| **Ports** | **Protocol(s)** | **Purpose** |
| --- | --- | --- |
| **80, 443 (when using SSL)** | TCP | must be allowed through any firewall where communication to the RapidIdentity Server is required |
| **1433** | TCP | SQL communication |
| **2195, 5228, 5229, 5230** | TCP UDP | PingMe communication |
| **1812, 1813** | UDP | RADIUS - *only needed if installing Network Policy Server (NPS) on the same server, for example, to accommodate OTP to VPN authentication or for a number of other integration points* |