Serial command line authentication

[opti-gregor]

Hi.

Does anybody knows how to setup authentication when connecting to command line via serial interface. I would like to protect data or at least make it difficult to someone with phisical access to device to get it.

Thanks.

[Fabian Nydegger 0]

Hi
Here are the steps to deactivate the serial terminal:

• Open the following file: /etc/inittab
• It will look something like this:

::sysinit:/etc/init.d/rcS S boot
 
::shutdown:/etc/init.d/rcS K shutdown
 
::askconsole:/usr/libexec/login.sh

• To disable the serial terminal, the line with askconsole needs to be commented out, like so:

::sysinit:/etc/init.d/rcS S boot

::shutdown:/etc/init.d/rcS K shutdown

#::askconsole:/usr/libexec/login.sh

• Reboot the Omega and the serial terminal will no longer be available. Note that there will still be kernel messages printed, but the terminal will not be available.

[Adam Brandes]

To make the serial port console use authentication, open the file /etc/config/system

Edit the line that says option ttylogin '0' and change the 0 to a 1.

Reboot the system. It will now ask you for a login on the serial port console. Default is user: root, password: onioneer