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Creating a pem file, Selecting an ssl certificate – Guntermann & Drunck DVICenter DP16 Config Panel User Manual

Page 34

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Basic configuration of the web application

32 · G&D DVICenter

Creating a PEM file

1. Enter the following command(s) into the prompt and press

Enter

:

a. Linux

b. Windows

2. The gdcd.pem file is created during the copying. It contains the created certificate

and its key as well as the Certificate Authority.

Selecting an SSL certificate

By default, each G&D device with integrated web application stores at least one

SSL certificate. The certificate has two functions:

The connection between web browser and web application can be established via

an SSL-secured connection. In this case, the SSL certificate allows the user to

authenticate the opposite side.
If the device’s IP address does not match the IP address stored in the certificate,

the web browser sends a warning message.

The communication between G&D devices within a system is secured via the

devices’ certificates.

NOTE:

The .pem file contains the following three components:

server certificate

private server key

certificate of the certification authority

If these three components are available separately, enter them successively to the

Clear text entry before updating the certificate stored in the device.

cat server.crt > gdcd.pem
cat server.key >> gdcd.pem
cat ca.crt >> gdcd.pem

copy server.crt + server.key + ca.crt gdcd.pem

ADVICE:

You can import a user certificate so that the device’s IP address

matches the IP address stored in the certificate.

IMPORTANT:

Communication between devices is possible only if all devices

within a KVM system use certificates of the same Certificate Authority (see

page 29).