# documentation:2.0:authpam
Keywords: documentation,2.0,authpam

# PAM

Authentication | Users | Password
--- | --- | ---
✔ |  |

## Presentation

LL::NG can use Pluggable authentication module as a simple authentication backend.

## Configuration

### Install Authen::PAM

You have to install the corresponding Perl module.

For CentOS/RHEL:

    yum install perl-Authen-PAM

In Debian/Ubuntu, install the library through apt-get command

    apt-get install libauthen-pam-perl

### Configuration of LemonLDAP::NG

In Manager, go in `General Parameters` > `Authentication modules` and choose PAM for authentication.

You can then choose any other module for users and password.

Then, go in `PAM parameters`:

- Authentication level: authentication level for PAM module
- PAM service: the PAM service to use (default: login)