I have been trying to figure out how to do this is Freebsd and haven't been able to find the answer. I have an email server that allows for ssh connection. I want to disable users from being able to connect through ssh. But I also don't want them to be able to log in if they were standing at the computers. I know that in CENTOS all I have to do is change the X to * in the /etc/passwd file. Is there a way to do this in Freebsd??