Using TLS

Transport Layer Security (TLS) is a mechanism for encrypting data sent or received over the network. Encrypting communication with TLS when using Remote UI reduces the risks of data eavesdropping and tampering during communication.
To use TLS encrypted communication for Remote UI, specify the key and certificate (server certificate) you want to use, and then enable TLS on Remote UI.
This section describes how to configure the settings using Remote UI from a computer.
On the control panel, select [Menu] in the [Home] screen, and then select [Management Settings] to configure the settings. However, the control panel can only be used to enable or disable TLS on Remote UI. [Use Remote UI]
Administrator privileges are required. The machine must be restarted to apply the settings.
Required Preparations
Prepare the key and certificate to use for TLS encrypted communication. Managing and Verifying a Key and Certificate
1
Log in to Remote UI in System Manager Mode. Starting Remote UI
2
On the Portal page of Remote UI, click [Settings/Registration]. Portal Page of Remote UI
3
In [Network Settings], click [TLS Settings].
The [TLS Settings] screen is displayed.
4
Specify the key and certificate to use for TLS encrypted communication.
1
In [Key and Certificate Settings], click [Key and Certificate].
The [Key and Certificate Settings] screen is displayed.
2
To the right of the key and certificate to use, click [Register Default Key].
When you click the key name (or certificate icon), the certificate details appear.
On the certificate details screen, click [Verify Certificate] to verify that the certificate is valid.
5
Set the TLS version and algorithm.
1
Click [TLS Details] [Edit].
The [Edit TLS Details] screen is displayed.
2
Set the usable version and algorithm, and click [OK].
Some combinations of versions and algorithms cannot be used. For the supported combinations of versions and algorithms, see the TLS specifications. TLS
[Allowed Versions]
Specify the maximum and minimum versions of TLS.
[Algorithm Settings]
Select the checkbox of the algorithm to use for TLS.
6
Enable TLS on Remote UI.
1
Click [License/Other] [Remote UI Settings] [Edit].
The [Edit Remote UI Settings] screen is displayed.
2
Select the [Use TLS] checkbox, and click [OK].
7
Restart the machine. Restarting the Machine
The settings are applied.
When a Warning Message Appears at Remote UI Startup
A warning message about the security certificate may appear when starting up Remote UI with TLS enabled. If there are no problems with the certificate or TLS settings, you can continue operations.
Using TLS to Encrypt Sent and Received E-mails
If the SMTP server and POP3 server support TLS, TLS can be used for communication with these servers. Configuring Detailed Information of the E-mail Server (Remote UI)
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