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Here are some simple commands you can use to test a SSL/TLS enabled site or service.

Simple Connect

openssl s_client -connect

Test with CA Validation

openssl s_client -connect localhost:9000 -CApath /etc/grid-security/certificates

Test a SMTP server

openssl s_client -connect -starttls smtp

Test with Displayed Certificates

openssl s_client -showcerts -connect
howtos/run_a_test_client.1519134328.txt.gz · Last modified: d/m/Y H:i (external edit)