4.2. Directory based configuration
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## 4.2. Directory based configuration

More flexible than the single configuration file is it to configure libpam via the contents of the `/etc/pam.d/` directory. In this case the directory is filled with files each of which has a filename equal to a service-name (in lower-case): it is the personal configuration file for the named service.

The syntax of each file in /etc/pam.d/ is similar to that of the `/etc/pam.conf` file and is made up of lines of the following form:

    type  control  module-path  module-arguments

The only difference being that the service-name is not present. The service-name is of course the name of the given configuration file. For example, `/etc/pam.d/login` contains the configuration for the login service.

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