x509 grid certificate chains
The x509 certificates for the grid are installed via RPMS:
rpm -qa | grep ca_
to view the full list from an active gateway.
The CRLs are updated via a cron job:
/etc/cron.d/fetch-crl
that requires the fetch-crl-cron.service and runs the /usr/sbin/fetch-crl pearl script.
If you’re getting an invalid CRL error on attempts to authenticate using GSI, check if the fetch-crl-cron.service is running.