PAM auto Login

[takCoder]

hi everyone,

hope it to be a simple question..

is there a way to let one of PAM modules to just escape its authentication
phase and have something like template_user so it uses that user's home
configs and don't ask for user passwords or so?

i tried pam_permit.so in sufficient mode but don't know why it does not
work as required... and i don't know which entry to put after that  line,
so the sufficient entry won't become the last chain entry.. (cause in
manuals, they said, if a sufficient entry becomes the last line, it will
show abnormal behaviour when not matched or so!..)
besides, it still asks for a username..

how can i just define such , somehow, default user for a pam module, like
telnetd for example?

need to mention that i don't want to disable other phases, if possible.

Really really appriciate any ideas or suggestions :)

Regards,
takCoder