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import java.util.Hashtable;
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import java.util.Hashtable;
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import javax.naming.*;
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import javax.naming.*;
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import javax.naming.directory.*;
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import javax.naming.directory.*;
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/**
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 * This class performs DNS lookups.
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 *
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 * @author Rgagnon.com and Daniel Marschall
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// Source: http://www.rgagnon.com/javadetails/java-0452.html
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 * @see Source: http://www.rgagnon.com/javadetails/java-0452.html (Modified)
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// Modified
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 * @version 2010-06-14
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 */
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public class DNSLookup {
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public class DNSLookup {
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        public static int doLookup(String hostName, DNSType type)
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        public static int doLookup(String hostName, DNSType type)
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                        throws NamingException {
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                        throws NamingException {
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                Hashtable<String, String> env = new Hashtable<String, String>();
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                Hashtable<String, String> env = new Hashtable<String, String>();
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                env.put("java.naming.factory.initial",
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                env.put("java.naming.factory.initial",