To add the GeoTrust Global CA certificate to your RACF database, perform the following steps:

1. Download to your work station the GeoTrust Global CA certificate (Root 2 - GeoTrust Global CA) from the GeoTrust website at https://www.geotrust.com/resources/root-certificates/index.html.
2. Upload the CA certificate to your z/OS system. There are many methods to transfer files from your workstation to your z/OS system. For example, you can upload the certificate file with Personal Communications 3270 or use TCP/IP FTP. The important things to remember are the certificate file must be uploaded to z/OS as text data, the certificate file must be stored in a sequential data set, and the sequential data set must have RECFM=VB and LRECL>=256.
3. After you have stored the certificate in a sequential data set, add it to your RACF database using the following RACF command:

     RACDCERT CERTAUTH ADD('ca-cert.dataset.name') +
     WITHLABEL('GeoTrust Global CA') TRUST

where ca-cert.dataset.name is the name of the sequential data set used to store the certificate received from the GeoTrust Web site.