Allow users to use Client Certificate Authentication.
You can use either of the following procedures:

• Changing Available Services (by Users)
• Changing Service Users (by Services)

Issue a client certificate for each user you allowed to use Client Certificate Authentication.

1. Click the gear-shaped menu button in the header.

2. Click Users & System Administration.

3. Click Create & Download.
   

4. Select the checkbox for a user to whom you want to issue a client certificate.
   You can select multiple users.
   

5. Set the expiration date.
   By default, the date is set to one year later.
   Expiration date of client certificate

6. Click Create.

Install the client certificate on a device using one of the following methods.

Inform users of the following page:
Installing Client Certificates on Devices

This section describes the steps for administrators to install the client certificate on a device and distribute the device to a user.

1. Download client certificates.
   Downloading Client Certificates in Bulk

2. Extract the downloaded zip file.
   The extracted folder contains zip files with the users' login names included in their names.

3. Extract the zip file with the desired user's login name.
   The extracted folder contains the client certificate file and a text file describing the password for the client certificate.

4. Install the client certificate on a device.
   As for the detailed steps, refer to the following page:
   How to Install a Client Certificate

1. In the "Create & Download Client Certificates" screen, select "Valid".
   

2. Select the checkbox for the user you want.
   

3. Click Download.