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P4 CLI Documentation | 2025.2

# p4 login2

Perform multi-factor authentication (MFA), formerly known as second factor authentication (2fa).

## Syntax

    p4 login2 [ -p -R ] [ -h host ] [ -S state ] [ -m method ] [ username ]
    p4 login2 -s [ -a | -h host ] [ username ]
    p4 login2 [-p] -r remotespec [--remote-user=X]
    p4 login2 [-s -a] -r remotespec [--remote-user=X]

Syntax and naming conventions

## Description

Enables a user requiring multi-factor authentication to authorize access on a given host.

The end-user will not need this command if auto-prompt is enabled.

See Triggering for multi-factor authentication (MFA) in the P4 Server Administration Documentation.

## Options

Option | Description
--- | ---
`-p` | Causes the MFA to persist even after the user's ticket has expired.
`-s` | Display the status of the current ticket, if one exists.
`-R` | Causes the MFA to be restarted, which allows the user to re-request a one-time password.
`-r` | Causes the server to forward the MFA to the server referenced in the specified remote specification. The authentication will be for the user specified by the `--remote-user` flag, or if `RemoteUser` is set in the remote specification, the login will be for that user. Specifying a host or a username is not allowed when logging into a remote server.
`-s` | Displays the MFA status for the user on the current host, or all hosts that the user has used if the `-a` flag is used. To show the status for a specific host, the IP address can be specified with the `-h` flag.
`username` | Specifying a username as an argument to this command requires `super` access, which is granted by p4 protect. In this case, `p4 login2` skips the MFA process and immediately marks the user as validated for the current host. The super user must already be logged in and verified, if necessary. A host (IP address) can be specified with the `-h` flag to validate the user on a different host.
`-S` | For non-interactive clients, executes each step of the MFA individually. This must begin with the `list-methods` state, which will report the list of available MFA methods for the given user. The next state must be `init-auth`, and must be accompanied by the chose method provided to the `-m` flag. This initiates the authentication with the MFA provider. The final step is `check-auth`, which will either prompt for a one-time password (OTP) or request the authorization status from the MFA provider, depending on the type of authentication method selected. The `-p` flag can be provided at the `init-auth` stage. If a host or user is being specified, the appropriate arguments must be provided at each stage.
`-a` | Shows the MFA status for the user on all hosts.
`-h` | A host (IP address) can be specified with the `-h` flag to validate the user on a different host. Shows the status for a specific host if the IP address is specified.

## Usage notes

Can File Arguments Use Revision Specifier? | Can File Arguments Use Revision Range? | Minimal Access Level Required
--- | --- | ---
N/A | N/A | `list`

## Related commands

To login | `p4 login`
To end a login session | `p4 logout`
To display tickets | `p4 tickets`

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