def mosh_args(conn):
    """Create SSH command for connecting specified server."""
    I, = conn.identities
    identity = I.identity_dict

    args = []
    if 'port' in identity:
        args += ['-p', identity['port']]
    if 'user' in identity:
        args += [identity['user']+'@'+identity['host']]
    else:
        args += [identity['host']]

    return args