Graylog Unable to call https://....:9000/api [RESOLVED]

Graylog Central (peer support)
2

Please post the complete output of the following commands:

$ echo -n | openssl s_client -connect 10.1.1.20:9000 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > graylog-cert.pem
$ openssl x509 -noout -in graylog-cert.pem -fingerprint -sha1