* and return successful suffix or throw an UnknownHostException.
     * import javax.naming.*;
     * import javax.naming.directory.*;
     * public static String getDomainByName(String name) throws UnknownHostException {
     * DirContext context;
     * UnknownHostException uhe = null;
     * 
     * try {
     * context = new InitialDirContext();
     * for ( ;; ) {
     * try {

     * Perform DNS SRV lookup on successively shorter suffixes of name
     * and return successful suffix or throw an UnknownHostException.
import javax.naming.*;
import javax.naming.directory.*;
    public static String getDomainByName(String name) throws UnknownHostException {
        DirContext context;
        UnknownHostException uhe = null;

        try {
            context = new InitialDirContext();
            for ( ;; ) {