https://techdoku.nogafam.es/ 2026-05-12T12:42:17+00:00 https://techdoku.nogafam.es/ https://techdoku.nogafam.es/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2021-09-29T21:09:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:dtproc:ssl:end_date&rev=1632949789&do=diff Get end-date from .pem encoded file with openssl openssl x509 -enddate -noout -in ACERTFILE.pem >>> notAfter=Aug 28 23:59:59 2021 GMT Also, you can get if a certain certificate is already expired or not (with 2 minutes (120 seconds) span) openssl x509 -checkend 120 -noout -in ACERTFILE.pem text/html 2021-07-05T07:50:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:dtproc:ssl:renew_verify&rev=1625471409&do=diff Renew certificates manually and verify chain elements Order of the certificate chain is: CERT - CACERT - CACERT_ROOT # Verify your cert element (or part) from the command line: # (write EOLS to execute command) cat <<EOLS |openssl x509 -text -noout -in /dev/stdin | less text/html 2020-02-25T12:01:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://techdoku.nogafam.es/doku.php?id=docu:csheet:dtproc:ssl:ssl_chain&rev=1582632111&do=diff Obtain SSL chain certificates and information about website with openssl How to get SSL chain certificates from an https server openssl s_client -showcerts -connect www.domain.com:443