A management system for a computer data network comprises a remote management station connected to an analog communication system and connected to a device console port of a co-located computer device. The remote management station comprises (a) an embedded processor, (b) a connecting means to the analog communication system, and (c) a connecting means to the device console port. The remote management station is configured to detect a user connecting to or disconnecting from the device console port via the remote management station. The remote management station is configured for one or more of the following: (a) logging the user off the device console port when the user disconnects or is disconnected from the console port; (b) logging a previous user off the device console port before allowing a new user to access the device console port; or (c) monitoring messages sent to the device console port