Pam_cap (8) Linux Manual Page

pam_cap – PAM module to set inheritable capabilities

Synopsis

pam_cap.so [config=/path/to/capability.conf] [debug]

Description

The pam_cap PAM module sets the current process’ inheritable capabilities. Capabilities are read from the /etc/security/capability.conf config file, or alternate file specified with the config= option. The module must not be called by a multithreaded application.

Options

config=/path/to/capability.conf

Indicate an alternative capability.conf style configuration file to override the default.

debug

Print debug information.

Module Types Provided

Only the authentication module type is provided.

Return Values

PAM_AUTH_ERR

The user is not known to the system.

PAM_IGNORE

No capabilities found for this user.

PAM_INCOMPLETE

Indicates a PAM-Conversation failure.

PAM_SUCCESS

Capabilities were set.

Files

/etc/security/capability.conf

Default configuration file

Examples

Nearly all applications/daemons which use PAM for authentication contain a configuration line: @include common-auth. Thus, to set inheritable capabilities in all of these applications, add the following as the last line to /etc/pam.d/common-auth

auth optional pam_cap.so

To set inheritable capabilities for a user in a specific application, or in application(s) which do not @include common-auth, add the line below to the application-specific file; e.g. /etc/pam.d/myapp

auth optional pam_cap.so

Authors

pam_cap was initially written by Andrew G. Morgan <morgan [at] kernel.org>

pam_cap (8) Linux Manual Page