Siemens RUGGEDCOM ROX II User Manual page 93

RUGGEDCOM ROX II
CLI User Guide
Once all configuration changes or tests are complete, it is important to change the boot mode by doing the
following:
1. Set the next boot to normal by typing:
nextboot normal
2. Reboot the device by typing:
reboot
CAUTION!
Security hazard – risk of unauthorized access and/or exploitation. Upon accessing BIST mode on
a device that is connected to a network, make sure SSH is disabled. Failure to disable SSH once in
BIST mode would allow anyone with remote access to the device and the root password to access
the Linux shell.
NOTE
SSH is enabled automatically once the device is rebooted in normal mode. It can also be enabled
manually by typing:
/etc/init.d/ssh start
3. Once the device is rebooted, disable SSH immediately by typing:
/etc/init.d/ssh stop
4. Connect the device to the network.
Section 2.7.2
Accessing Service Mode
Service mode grants access to the Linux shell.
To access service mode, do the following:
CAUTION!
Configuration hazard – risk of data corruption. Service mode is provided for troubleshooting and
advanced configuration purposes and should only be used by Siemens technicians. As such, this mode
is not fully documented. Misuse of the commands available in this mode can corrupt the operational
state of the device and render it inaccessible.
CAUTION!
Security hazard – risk of unauthorized access and/or exploitation. SSH is automatically enabled on
port 222 when the device is put in service mode. If the device is connected to the network, a user with
remote access to the device and the root password could access the Linux shell. If required, protect the
device by either:
• Disconnecting the device from the network
• Disabling SSH via maintenance mode before accessing service mode
IMPORTANT!
Changes made to the configuration in this mode will override the current configuration settings (e.g. IP
addresses, VLAN settings, etc.), but are discarded following a system reboot.
Accessing Service Mode
Chapter 2
Using RUGGEDCOM ROX II
47