>>>>> "Theodore" == Theodore Ts'o <tytso@MIT.EDU> writes: Theodore> My recommendation would be to control the behaviour Theodore> based on a module-arguments in the pam.conf/pam.d entry. Theodore> I'd also make the default be to not follow symlinks, Theodore> since it could potentially cause a security exposure Theodore> (even in the pam_listfile case), so it should be one of How do you have a security exposure with symlinks in this case? Also, I tend to disagree that at least for the case of pam_listfile having an option to control the behavior is appropriate. Either you're willing to trust the administrator or you are not.