Hello.
I see the following description in the doc.
https://www.postgresql.org/docs/13/ssl-tcp.html
Intermediate certificates that chain up to existing root certificates
can also appear in the ssl_ca_file file if you wish to avoid storing
them on clients (assuming the root and intermediate certificates were
created with v3_ca extensions). Certificate Revocation List (CRL)
entries are also checked if the parameter ssl_crl_file is set. (See
http://h41379.www4.hpe.com/doc/83final/ba554_90007/ch04s02.html for
diagrams showing SSL certificate usage.)
I follwed the URL above and saw the "Support and other resources" page
of the document "OpeNVMS Systems Documemtation Index page".
FWIW the folloing URL shows "HP Open Source Security for OpenVMS
Volume 2: HP SSL for Open VMS", which seems to be the originally
intended document..
https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c04622320
regards.
--
Kyotaro Horiguchi
NTT Open Source Software Center
