Before you can use remsh to execute commands on a remote host, the remote
host must be configured in one of two ways:
You must have an account on the remote
host with the same login name as your local login name, and the
name of your local host must be in the remote host's /etc/hosts.equiv file.
You must have an account on the remote host, and the
name of your local host and your local login name must be in a .rhosts file in your home directory on the remote host.