Obtaining certificate chain for giscsat.sun.ac.za, one moment while we download the giscsat.sun.ac.za certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for giscsat.sun.ac.za, one moment while we re-check the giscsat.sun.ac.za certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for giscsat.sun.ac.za failed
Sorry, the request for giscsat.sun.ac.za could not be completed...
We could not load the certificate for giscsat.sun.ac.za, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.