Jack Wallen walks you through creating new users and groups on Linux and adding those new users to the new groups.

Need to lock down that Linux server so certain remote users can only access a specific directory and only for file upload and download purposes? Jack Wallen shows you how.

Many, if not most, Linux distributions can be set to start SSH automatically. Linux — like Mac OS X — by extension usually permits the machine to be used as an SFTP server if sshd is running.