How to resolve perl warnings about locale when SSH:ing from macOS into Debian/Ubuntu Linux

perl locale warning

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_CTYPE = "UTF-8",
	LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_US.UTF-8").

solution

# Add this to your ~/.ssh/config on macOS

Host *
  SetEnv LANGUAGE=en_US.UTF-8 LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8