in the auth sendmail sxs article, it mentioned a pam_stack.so in /etc/pam.d/smtp. I couldn't find such a module in my caldera. not even the linux-pam talked about it. what is it? -- Swiftly. Silently. Invisibly. .~. In Linux we trust. / v \ news://news.hkpcug.org /( _ )\ http://www.linux-sxs.org ^ ^