pam: pam (Pluggable Authentication Modules) pam: pam: PAM = Pluggable Authentication Modules. Basically, it is a flexible pam: mechanism for authenticating users. PAM provides a way to develop pam: programs that are independent of authentication scheme. However, pam: these programs will need "authentication modules" (and libpam) at pam: run-time in order to work. pam: pam: Homepage: http://www.linux-pam.org/ pam: pam: