Rublon

Secure Remote Access

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Last updated on September 25, 2026

Rublon User Guide is meant for users who want to learn more about Rublon. If you are an administrator looking for deployment instructions, refer to our Documentation.

Overview

Append Mode lets you specify an MFA method or supply a passcode by appending it to your password after a separator.

Your administrator can enable Append Mode for supported integrations using Rublon Authentication Proxy or Rublon MFA for Linux SSH. Ask your administrator whether Append Mode is available for your application and which authentication methods you can use.

If Append Mode is enabled for the application of your choice, ask your administrator for the separator. By default the separator is set to “,” (comma).

The following values can be appended to your password after the separator:

  • “push” – use Mobile Push as the second factor in Rublon MFA
  • “email” – use Email Link as the second factor in Rublon MFA
  • “smsLink” – use SMS Link as the second factor in Rublon MFA
  • “phoneCall” – use Phone Call as the second factor in Rublon MFA
  • “123456” – use Mobile Passcode as the second factor in Rublon MFA; this value is the actual Mobile Passcode generated by Rublon Authenticator or a third-party app like Google Authenticator or Microsoft Authenticator; must be exactly 6 characters long with no spaces in between
  • “123456789” – use Bypass Code you received from your administrator; must be exactly 9 characters long with no spaces in between
  • “<YubiKey OTP code>” – insert the YubiKey and press the button on the key; the OTP will be typed automatically and then Enter will be pressed

Note

Note that Append Mode is case-sensitive. Values like “Push”, “EMAIL”, “pUsH” do not work.

Note

For Rublon MFA for Linux SSH, use a password that does not contain the configured separator, or ask your administrator to configure a different separator. The connector splits the input at the last occurrence of that character, which can cause incorrect parsing if you enter a password containing it without appending a method or code.

Examples

Let’s assume that your password is ILoveRublon123 and your administrator did not change the default value of the separator, so it’s a “,” (comma).

Then:

If you would like to choose Mobile Push as the authentication method, type:

ILoveRublon123,push

If you would like to choose Email Link as the authentication method, type:

ILoveRublon123,email

If you would like to choose SMS Link as the authentication method, type:

ILoveRublon123,smsLink

If you would like to choose Phone Call as the authentication method, type:

ILoveRublon123,phoneCall

If you would like to choose Mobile Passcode as the authentication method, type:

ILoveRublon123,123456

Where 123456 is the TOTP code from Rublon Authenticator.

You can also append the 9-digit Bypass Code if you received one from your administrator.

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