How to verify HTTPS monitor via CLI with version 10.x and Route Domains

I sometimes have the requirement to verify the reason of a red HTTPS monitor via CLI.

I know already this command:

    openssl s_client -connect :443

But this doesn't seem to work correctly with Route Domains. Since version 11.x I know the two commands rdsh and rdexec, but this is not possible in version 10.x. If I try it with the following command:

    openssl s_client -connect 2620:0000:0C10:F501:0000:0008:8A23:C0E0:443

I'm getting this error:

    getaddrinfo: Servname not supported for ai_socktype
    connect:errno=0

Any idea how I can easily verify the response of my configured HTTPS-request to verify what's the issue of the red monitor?

Thank you!

Ciao Stefan 🙂