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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b)
Description of problem:
the /etc/pam.d/system-auth file as generated by authconfig can
(perhaps it always does) contain the option likeauth to pam_unix.so.
That option is not documented anywhere that I could find.
There is no man page for pam_unix (which is really a bug in itself),
but there is some information in
/usr/share/doc/pam-0.75/txts/README.pam_unix. Not about likeauth though.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. man pam_unix
2. man pam_unix.so
3. get coffee
Actual Results: Nothing.
Expected Results: I should have been enlightened.
Some info here on the PAM mailing list:
Actually this option is not useful and was necessary only in older PAM. It
shouldn't be used by default but it does no harm if used.