if ( -e "ship.cfg" ) {
        open (CFGFILE, "<", "ship.cfg") || die;
        @hosts=<CFGFILE>;
        close (CFGFILE);
        # untaint all data from ship.cfg
        @hosts = map { /^(.*)$/ and $1 } @hosts;
} else {
        # Enter your hosts here...
        @hosts = qw/host1 host2 host3 aliens/;
}