---
name: "Authen::SASL::Perl::EXTERNAL"
section: "3pm"
platform: "linux"
package: "perl-authen-sasl"
version: "2.2100-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Authen::SASL::Perl::EXTERNAL"
---

# Authen::SASL::Perl::EXTERNAL(3pm)

External Authentication class

## NAME

Authen::SASL::Perl::EXTERNAL - External Authentication class

## VERSION

version 2.2100

## SYNOPSIS

```
  use Authen::SASL qw(Perl);
  $sasl = Authen::SASL->new(
    mechanism => 'EXTERNAL',
    callback  => {
      user => $user
    },
  );
```

## DESCRIPTION

This method implements the client part of the EXTERNAL SASL algorithm, as described in RFC 2222.

### CALLBACK

The callbacks used are:

- user

  The username to be used for authentication

## SEE ALSO

Authen::SASL, Authen::SASL::Perl

## AUTHORS

Software written by Graham Barr \<gbarr@pobox.com\>, documentation written by Peter Marschall \<peter@adpm.de\>.

Please report any bugs, or post any suggestions, to the perl-ldap mailing list \<perl-ldap@perl.org\>

## COPYRIGHT

Copyright (c) 1998-2004 Graham Barr. All rights reserved. This program is free software; you can redistribute  it and/or modify it under the same terms as Perl itself.

Documentation Copyright (c) 2004 Peter Marschall. All rights reserved.  This documentation is distributed, and may be redistributed, under the same terms as Perl itself.