2.10. Logging in to GDM using smart card authentication on an IdM client


The GNOME Desktop Manager (GDM) requires authentication. You can use your password; however, you can also use a smart card for authentication.

Follow this procedure to use smart card authentication to access GDM.

Prerequisites

Procedure

  1. Insert the smart card in the reader.
  2. Enter the smart card PIN.
  3. Click Sign In.

    You are successfully logged in to the RHEL system and you have a TGT provided by the IdM server.

Verification

  • In the Terminal window, enter klist and check the result:

    $ klist
    Ticket cache: KEYRING:persistent:1358900015:krb_cache_TObtNMd
    Default principal: example.user@REDHAT.COM
    
    Valid starting       Expires              Service principal
    04/20/2020 13:58:24  04/20/2020 23:58:24  krbtgt/EXAMPLE.COM@EXAMPLE.COM
    	renew until 04/27/2020 08:58:15
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