libpam0g

Package contains libraries, required by other applications as dependencies. Do not install separately.

Pluggable Authentication Modules library
Contains the C shared library for Linux-PAM, a suite of shared
libraries that enable the local system administrator to choose how
applications authenticate users. In other words, without rewriting
or recompiling a PAM-aware application, it is possible to switch
between the authentication mechanism(s) it uses. One may entirely
upgrade the local authentication system without touching the
applications themselves.