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

# Set up two-factor authentication

> Enable, use, disable, and recover two-factor authentication for Gcore Hosting accounts with Google Authenticator codes.

Two-factor authentication (2FA) adds a second verification step to Hosting Portal login. After enabling it, each login requires a six-digit one-time code from Google Authenticator in addition to the standard credentials.

## Enable two-factor authentication

1. Log in to the [Gcore Hosting Portal](https://hosting.gcore.com/billmgr).
2. In the **Client** section of the sidebar, click **User settings**.
3. Navigate to the **Two-factor authentication** section and click **Enable two-factor authentication**.

![User settings page with the Two-factor authentication section and Enable link](https://mintcdn.com/gcore/1bA_7wZnxXhG8zar/images/docs/hosting/account-management/set-up-two-factor-authentication/set-up-two-factor-authentication-image1.png?fit=max\&auto=format\&n=1bA_7wZnxXhG8zar\&q=85\&s=c85f336eeb0f928dfa3533af616aa867)

4. On the setup form, scan the QR code with the Google Authenticator app.

![Two-factor authentication setup form showing QR code, Key, and Temporary password fields](https://mintcdn.com/gcore/1bA_7wZnxXhG8zar/images/docs/hosting/account-management/set-up-two-factor-authentication/set-up-two-factor-authentication-image2.png?fit=max\&auto=format\&n=1bA_7wZnxXhG8zar\&q=85\&s=4774c08658e4bf52c8853e70ae035995)

> [!NOTE]
>
> If the QR code cannot be read, enter the value from the **Key** field manually into the app. The key is regenerated each time the setup form opens — if QR code or key files were saved previously, download fresh copies using the **Save QR-code** and **Save key** links on the form.

5. In the **Temporary password** field, enter the six-digit code generated by the app.

> [!WARNING]
>
> The code is time-based. Verify that the time and time zone on the phone match the **Server time** shown on the form. A difference greater than one minute causes the code to be rejected.

6. Click **Ok**.

## Authorize with two-factor authentication

1. On the [Hosting Portal](https://hosting.gcore.com/billmgr?func=logon) login page, enter the account login and password.
2. In the **Language** field, select the interface language.
3. Click **Sign in**.

![Hosting Portal login page with Login, Password, Language fields and Sign in button](https://mintcdn.com/gcore/1bA_7wZnxXhG8zar/images/docs/hosting/account-management/set-up-two-factor-authentication/set-up-two-factor-authentication-image3.png?fit=max\&auto=format\&n=1bA_7wZnxXhG8zar\&q=85\&s=0190e9cdc853df144f96e7800fa81d17)

4. On the confirmation page, enter the six-digit code from Google Authenticator in the **Temporary password** field.

> [!WARNING]
>
> Verify that the exact time and time zone are set correctly on the phone. An incorrect clock causes the code to be rejected.

5. Click **Ok**.

## Disable two-factor authentication

1. In the **Client** section of the sidebar, click **User settings**.
2. Navigate to the **Two-factor authentication** section.
3. In the **Disable two-factor authentication** field, enter the six-digit code from the Google Authenticator app.
4. Click **Ok**.

## Recover access

If the verification code is unavailable, contact technical support at [support@gcore.com](mailto:support@gcore.com) or via chat on [gcore.com](https://gcore.com). Provide the account name and the phone number used during registration.