Differences between revisions 5 and 6
Revision 5 as of 2019-08-05 02:40:46
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Editor: PieterSmit
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Revision 6 as of 2019-08-25 22:47:04
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Editor: PieterSmit
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Deletions are marked like this. Additions are marked like this.
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== OpenSSL Linux commandline ssl tool == == OpenSSL Linux command line ssl tool ==
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 * [[OpenSslSelfSignedCertificate| openssl self signed certificate with keyUsage flags ]]
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=== Verify a webserver certificate === === Verify a web server certificate ===

OpenSSL Linux command line ssl tool

Verify a web server certificate

  • openssl s_client -showcerts -connect my.test.com:443
    • Output should end on "Verify return code: 0 (ok)"
    • As of 2017 the TLS Protocol should be TLSv1.2 at least.
  • For sni you can add -servername xyz.test.com

vigor: Linux/OpenSSL (last edited 2020-01-21 03:12:13 by PieterSmit)