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Verify return code: 21 sometimes


Adding root certificate to CentOS 5Checking the issued and expiry dates for the certificates involved a certificate chainHow to debug certificate chains with OpenSSL?HAProxy - ssl client ca chain cannot be verifiedssl certificate self signed instead of validTesting an SMTP server with SSL?Verify return code: 21 (unable to verify the first certificate)Difference between openssl's verify and s_clientTrying to connect to LDAPS (Windows active directory) but keep receiving Verify return code: 20 (unable to get local issuer certificate) errorOpenSSL/HAProxy verify client certificates using a non-CA certificate






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;








-1















I installed a certificate to my Apache2 server and when I test with openssl s_client -connect 127.0.0.1:443 I get some times Verify return code: 0 (ok) but mostly Verify return code: 21 (unable to verify the first certificate).



The tests are done on the server, just by executing the same command with a couple of seconds between each. Does anyone know why the mixed results?.



P.S.: The certificates are issued by Digicert.



EDIT



BTW, I verify the certificate chain against the certificate given by Digicert and get OK:



openssl verify -CAfile /etc/digicert/cert.chain /etc/digicert/cert.pem
/etc/digicert/cert.pem: OK









share|improve this question
























  • Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

    – Patrick Mevzek
    Apr 20 at 21:56

















-1















I installed a certificate to my Apache2 server and when I test with openssl s_client -connect 127.0.0.1:443 I get some times Verify return code: 0 (ok) but mostly Verify return code: 21 (unable to verify the first certificate).



The tests are done on the server, just by executing the same command with a couple of seconds between each. Does anyone know why the mixed results?.



P.S.: The certificates are issued by Digicert.



EDIT



BTW, I verify the certificate chain against the certificate given by Digicert and get OK:



openssl verify -CAfile /etc/digicert/cert.chain /etc/digicert/cert.pem
/etc/digicert/cert.pem: OK









share|improve this question
























  • Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

    – Patrick Mevzek
    Apr 20 at 21:56













-1












-1








-1








I installed a certificate to my Apache2 server and when I test with openssl s_client -connect 127.0.0.1:443 I get some times Verify return code: 0 (ok) but mostly Verify return code: 21 (unable to verify the first certificate).



The tests are done on the server, just by executing the same command with a couple of seconds between each. Does anyone know why the mixed results?.



P.S.: The certificates are issued by Digicert.



EDIT



BTW, I verify the certificate chain against the certificate given by Digicert and get OK:



openssl verify -CAfile /etc/digicert/cert.chain /etc/digicert/cert.pem
/etc/digicert/cert.pem: OK









share|improve this question
















I installed a certificate to my Apache2 server and when I test with openssl s_client -connect 127.0.0.1:443 I get some times Verify return code: 0 (ok) but mostly Verify return code: 21 (unable to verify the first certificate).



The tests are done on the server, just by executing the same command with a couple of seconds between each. Does anyone know why the mixed results?.



P.S.: The certificates are issued by Digicert.



EDIT



BTW, I verify the certificate chain against the certificate given by Digicert and get OK:



openssl verify -CAfile /etc/digicert/cert.chain /etc/digicert/cert.pem
/etc/digicert/cert.pem: OK






openssl apache2






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Apr 20 at 12:27







leonardorame

















asked Apr 20 at 12:20









leonardorameleonardorame

1538




1538












  • Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

    – Patrick Mevzek
    Apr 20 at 21:56

















  • Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

    – Patrick Mevzek
    Apr 20 at 21:56
















Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

– Patrick Mevzek
Apr 20 at 21:56





Noone can really help you if not showing the certificates you are testing... Nor the traces shown by openssl. Add -msg and/or -showcerts to see the certificates returned by the server, obviously it is not the same in both cases.

– Patrick Mevzek
Apr 20 at 21:56










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