The other day, I installed a OCSP server in Windows 2012 R2 and got the need of testing it.
I have found two different ways. In Windows, using the tool certutil:
# certutil.exe -url cert.pem
It will open a window where we can test all the revocation methods listed in the certificate. To test OCSP, we select it under “recovery” and click the button.
In Linux we can test OCSP with OpenSSL, this line does the trick:
# openssl ocsp --issuer ca.pem -nonce -CAfile ca.pem -url http://ocsp.server/ocsp -cert mycert.pem