---
name: "pamu2fcfg"
section: "1"
platform: "linux"
package: "pam-u2f"
version: "1.4.0-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/pamu2fcfg"
---

# pamu2fcfg(1)

Configuration tool for the U2F PAM module.

## NAME

pamu2fcfg - Configuration tool for the U2F PAM module.

## SYNOPSIS

**pamu2fcfg** \[*OPTION*\]...

## DESCRIPTION

Perform a FIDO2/U2F registration procedure using a connected authenticator and output a configuration line that can be used with the U2F PAM module.

## OPTIONS

- **-d**, **--debug**

  Print debug information (highly verbose)

- **-h**, **--help**

  Print help and exit

- **-o**, **--origin**=*STRING*

  Set the FIDO2 relying party ID to use during registration. Defaults to pam://hostname. Before pamu2fcfg v1.1.0, this set the U2F origin URL.

- **-i**, **--appid**=*STRING*

  Set the FIDO2 relying party name to use during registration. Defaults to **origin**. Before pamu2fcfg v1.1.0, this set the U2F application ID.

- **-r**, **--resident**

  Generate a resident credential. Defaults to off.

- **-t**, **--type**=*STRING*

  COSE type to use during registration (ES256, EDDSA, or RS256). Defaults to ES256.

- **-P**, **--no-user-presence**

  Allow using the credential without ensuring the user’s presence. Defaults to off.

- **-N**, **--pin-verification**

  Require PIN verification during authentication. Defaults to off.

- **-V**, **--user-verification**

  Require user verification during authentication. Defaults to off.

**--version**: **Print version and exit**

- **-u**, **--username**=*STRING*

  The name of the user registering the device. Defaults to the current user name.

- **-n**, **--nouser**

  Print only registration information (key handle, public key, and options). Useful for appending.

## BUGS

Report pamu2fcfg bugs in the issue tracker: https://github.com/Yubico/pam-u2f/issues

## SEE ALSO

[**pam\_u2f**(8)](/pam_u2f/8.md), [**pam**(7)](/pam/7.md), [**fido2-token**(1)](/fido2-token/1.md)

The pam-u2f home page: https://developers.yubico.com/pam-u2f/

YubiKeys can be obtained from Yubico: https://www.yubico.com/