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4.8 Web-Based Management - WBM
(4) Web Services
The page provides access to the configuration of web services, e.g. HTTPS certificate, which is used for
the NGINX web server.
The HTTPS certificate and the associated private key are located as files in the file system of the CPU and are
listed as symbolic links on the web page. During a firmware update, the existing certificate and key files are
moved to a backup directory and symbolic links are created that refer to this backup.
1. NGINX Web Server
(a) Selected HTTPS Certificate
The HTTPS certificate is used to authenticate the CPU to the web server.
In the configuration table for the NGINX Web server you have the option of selecting the HTTPS certificate
from one of the identity stores stored in the CPU.
1. Select the corresponding Identity store.
The corresponding HTTPS certificate is selected.
2. Click on [Apply].
The certificate is used for authentication in the configuration.
Please note that reconfiguring the web service can affect the real-time behavior of your system. Avoid this
during productive operation.
(b) Self-signed HTTPS certificate
In addition to the HTTPS certificates stored in the CPU, you also have the option of selecting a self-signed certif-
icate created by the firmware.
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