This page provides an overview of necessary steps for administrators on using Client certificate authentication.

1. Perform the following actions to configure Client certificate authentication.
   Configuring client certificate authentication

   • Allowing users to use Client certificate authentication
   • Issuing client certificates.
   • Installing client certificates on devices.
   • Configuring IP address restrictions.

2. Notify users of how to log in with Client certificate authentication.
   Logging in with client certificate authentication

3. If the client certificate has expired, reissue it and install it on the device again.
   Renewing client certificates on devices

4. When you want to restrict users from using cybozu.cn because of their retirement or personnel changes, deactivate Client certificate authentication for them.
   Deactivating client certificate authentication