name : get-group-certificate-configuration.rst **To retrieve the configuration for the certificate authority used by the Greengrass group** The following ``get-group-certificate-configuration`` example retrieves the configuration for the certificate authority (CA) used by the specified Greengrass group. :: aws greengrass get-group-certificate-configuration \ --group-id "1013db12-8b58-45ff-acc7-704248f66731" Output:: { "CertificateAuthorityExpiryInMilliseconds": 2524607999000, "CertificateExpiryInMilliseconds": 604800000, "GroupId": "1013db12-8b58-45ff-acc7-704248f66731" }