Gude Expert Net Control 2304, Руководство пользователя

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Expert Net Control 2304 © 2021 GUDE Systems GmbH
Specifications
copy server.crt + server.key server.pem
The created server.pem can only be uploaded in the maintenance section of the
device.
If several certificates (Intermediate CRT's) should also be uploaded to the device,
one should make sure, that firstly the server certificate and secondly the Intermediates
are assembled , e.g:
cat server.crt IM1.crt IM2.crt server.key > server.pem
An uploaded certificate will be preserved, when a device is put back to factory de-
faults .
Performance Considerations
If RSA 4096 certificates are used, the first access to the web server can take 8-10
seconds, because the math unit of the embedded CPU is highly demanded. After that,
the parameters are in the SSL session cache, so all other requests are just as fast as
with other certificate lengths. For a quick response even on the first access, we recom-
mend RSA 2048-bit certificates that offer adequate security, too.
4.8 Console
For the configuration and control of the device, there is a set of commands with para-
meters that can be entered through a console. The console is available via Telnet, or
for devices with RS232 port through using a serial terminal. It is not necessary to use
Telnet, in
Raw Mode a simple TCP/IP connection is sufficient to send commands. The
communication can also be performed automated (e.g. via scripting languages). The
console features are configured through the web interface
.
Command Set
There are several command levels. The following commands are usable from each
level:
back go back one level
help all commands of the actual level
help all show all commands
logout logout (only when login required)
quit quit console
The "help" command returns all the commands of the current level. If "help" is called
from the top level, e.g. the line "http [subtopics]" appears. This means that there is an-
other level for "http". With the command "http help" all commands below "http" are
shown. Alternatively, with entering "http" you can select the http level, and "help" shows
all the commands on the selected level. The command "back" again selects the top
level. It is possible to use "help" at any position: "http passwd help" provides all com-
mands that have the prefix "http passwd".
You will find a complete list of all possible device commands in the chapter "Cmd
Overview".
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