---
type: source
title: "2FA Setup with FreeOTP"
tags: [2fa, totp, freeotp, ums]
related: [freeotp, ums, totp, 2-factor-authentication]
created: 2026-07-01
updated: 2026-07-01
authors: []
year: 2026
url: "https://rz.uni-greifswald.de/support/dokumentation/anleitungen/2fa-mit-totp/2fa-einrichten/freeotp"
venue: "URZ Support Documentation"
sources: ["output/rz_uni_greifswald_de_support_dokumentation_anleitungen_2fa_mit_totp_2fa_einricht.md"]
---

# 2FA Setup with FreeOTP

This source provides a detailed procedural guide for setting up Two-Factor Authentication (2FA) using the FreeOTP application for university accounts managed via the UMS (Accountverwaltung).

## Setup Methods

The guide describes two primary ways to add the university account to FreeOTP:

### QR-Code Setup (Variant A)
- **Two-Device Setup:** The user logs into the UMS on a PC/Notebook and scans the displayed QR code using the FreeOTP app on a smartphone.
- **Single-Device Setup:** The user logs into the UMS on a smartphone and clicks the QR code to automatically generate the entry in FreeOTP.

### Manual Setup (Variant B)
Used as a fallback or for easier clipboard copying on a single device. It requires the following technical parameters:
- **Type:** TOTP
- **Digits:** 6
- **Algorithm:** SHA1
- **Interval:** 30 seconds
- **Secret:** The TOTP-Secret provided in the UMS "Details" view.

## Critical Completion Step
The source emphasizes that adding the token to the app is not sufficient. To link the token to the account, the user must:
1. Generate a 6-digit code in FreeOTP.
2. Enter this code into the "TOTP-Code" field in the UMS.
3. Click "Confirm" (Bestätigen).

Failure to complete this step results in the generation of invalid codes that will be rejected by the server.
