User Documentation

Getting to know and arranging the web server | HTTPS
15u-remote web server manual2112220000/06/01.2021
Exchanging theTLS/SSLcerticate
You can replace the u-remote standard certicate with your
own certicate. Optionally, you can have your certicate
signed by a trusted certicate authority (CA) and also load
the CA certicate to the coupler.
Only transmit certicates and private keys via
trusted connections.
We recommend transmitting certicates and pri-
vate keys via the USB port of the coupler.
The web server supports:
– Encryption with TLS1.1 and TLS1.2.
– Key lengths up to 2048bit.
– PEM-coded keys and certificates (.pem).
▶ Generate a private key and an appropriate certificate for
it, e.g. with OpenSSL.
Do not encrypt the private key with a pass phrase.
The web server cannot read the key in this case
and identies it as invalid.
▶ Start the web server.
▶ Log in with your user name and password.
▶ In the menu bar, click Extras and then exchange TLS/
SSL certificate.
Exchange TLS/SSL certificate menu
Exchange TLS/SSL certificate
▶ To delete any old keys and certificates, click Delete.
▶ To load the key and the certificates onto the coupler, click
Select file and navigate to the desired file on your com-
puter.
Keys and certicates are automatically checked. The result is
displayed in the web server. You can move the mouse over
the icons to display the results as text.
Automatic check: Key invalid
Automatic checking successful
After successful checking, the web server has to be restarted
to activate the user-dened certicate.
▶ Click Changes require restart.