See how OpenSSH client configuration works for given host on Linux or Unix desktop:
ssh -F {/path/to/config} -G {your-host-here} | more

For example: see how config works out for remote server named ln.www-042:
ssh -F ~/.ssh/config -G ln.www-042 | more

Useful for debugging. pic.twitter.com/KM6Un3j8sB

— nixCraft 🐧 (@nixcraft) August 21, 2020