I tried to run nmap to see what TLS was being accepted but it was a series of rejections (400s). I wonder how one can see what TLS Bigfix is accepting?
You can use openssl for that:
openssl s_client -connect relay_hostname:port -tls1
openssl s_client -connect relay_hostname:port -tls1_1
openssl s_client -connect relay_hostname:port -tls1_2
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