sub grep {
     my ($self,$logLines, @strings) = @_;

     for my $string (@strings) {
        if ( $logLines =~ /$string/ ) {
            INFO("Found $string in ipsecd.log");
        }
        else {
            #return false, we cound find $string
            WARN("Not Found $string in ipsecd.log");
            return 0;
        }
    }
    # found all strings in the $loglines, return true.
    return 1;

}