$ curl -I https://9.185.173.135
curl: (35) Unknown SSL protocol error in connection to 9.185.173.135:443
This is an secured page that I need to access.
I got the same error when running curl/httpie against a Tomcat server on my localhost deployed from Eclipse. It turns out that default server.xml deployed by Eclipse disables https. Specifically, the section below is commented out in server.xml.
After uncommenting it out and adding the two keystore parameters, the curl command starts working (with --insecure option if the certificate is self-signed).
keystoreFile="/path/to/your/keystore"
keystorePass="yourpass" />