In AIX, we can enable PAM by modifying the token "auth_type" in file "/etc/security/login.cfg" to "PAM_AUTH". If this is not done, it uses standard OS authentication "STD_AUTH".
Likewise, how can we enable system to use PAM rather than OS level authentication in
1) Solaris 10 sparc
2) HPUX 11i
3) RH Linux v4 and above
Pls consider this as priority