Hello, > I'm in trouble with a pam module... > where can I look for the explanation of this message: > Dec 19 17:07:21 lgn login[5893]: FAILED LOGIN SESSION FROM > localhost.localdomain FOR (null), Error in service module 'Error in service module' indicates a fatal error in the PAM environment, typically one that can't be explained or recovered from. E.g., PAM returns this if no conversation function is available; individual modules may return this error if the application fails to provide a username, if the current user can't be identified, etc. What does your PAM config file look like? (/etc/pam.d/login, or /etc/pam.conf) This may provide further clues as to the nature of the problem. Also, what OS/distribution are you running? Steve Langasek postmodern programmer