NBB-800
User Manual for NRSW version 4.5.0.100
Parameter System Settings
Enable TCP timestamps Enable TCP timestamps for system wide TCP communication. This is
needed for Protection Against Wrapped Sequence numbers (PAWS),
but with these timestamps enabled a remote attacker can guess the
uptime of the system. The uptime is a lower bound for the age of the
main system components like the kernel. If the system has an uptime
of 3 years it’s unlikely that recent security patches were applied.
Show messages and infos
on log-in screen
Show error messages and notifications on login screen. If this option
is enabled these messages are also shown before logging in with user
credentials.
Syslog
The following syslog parameters can be set:
Parameter Syslog Settings
Storage The storage device on which log files shall be stored.
Max. filesize The maximum size of the log files (in kB) until they will get rotated.
Redirect address Specifies an IP address to which log messages should be redirected
to. A tiny system log server for Windows is included in TFTP32 which
can be downloaded from our website.
In general, the box comes with an internal flash device which can be used to store data. Depending
on your model this can be extended by additional flash or USB disks. The following storage devices
exist:
Parameter Storage Devices
flash root The root partition of the internal flash
flash data The data partition of the internal flash
extended disk An extended storage disk
USB disk A storage disk connected to the external USB port
LEDs
The following LED parameters can be set:
Parameter LED Settings
LED You can customize the behavior of all status LEDs on the front panel
of your device. They are usually divided into two banks (top/bottom).
You may configure toggle mode, so that the LEDs periodically cycle
between two separated configured LED schemes.
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