pam: PAM - Pluggable Authentication Modules
pam:
pam: PAM is a free implementation of the sun RFC for solaris.
pam: Basically, it is a flexible mechanism for authenticating users. 
pam: PAM provides a way to develop programs that are independent of
pam: authentication scheme. These programs need "authentication modules" 
pam: to be attatched to them at run-time in order to work. 
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