> mosh [email protected]
The locale requested by LC_ALL=en_US.UTF-8 isn't available here.
Running `locale-gen en_US.UTF-8' may be necessary.

The locale requested by LANG=en_US.UTF-8 isn't available here.
Running `locale-gen en_US.UTF-8' may be necessary.

mosh-server needs a UTF-8 native locale to run.

Unfortunately, the local environment (LC_ALL=en_US.UTF-8) specifies
the character set "US-ASCII",

The client-supplied environment (LANG=en_US.UTF-8) specifies
the character set "US-ASCII".

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
Connection to 131.252.132.102 closed.
/usr/local/bin/mosh: Did not find mosh server startup message. (Have you installed mosh on your server?)