47 lines
1.4 KiB
Java
47 lines
1.4 KiB
Java
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Port Scanner
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import java.net.*;
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import java.io.IOException;
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.*;
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public class PScanner {
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public static void main(String[] args) {
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InetAddress ia=null;
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String host=null;
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try {
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host=JOptionPane.showInputDialog("Enter the Host name to scan:\n example: xxx.com");
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if(host!=null){
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ia = InetAddress.getByName(host);
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scan(ia); }
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}
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catch (UnknownHostException e) {
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System.err.println(e );
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}
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System.out.println("Bye from NFS");
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//System.exit(0);
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}
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public static void scan(final InetAddress remote) {
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//variables for menu bar
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int port=0;
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String hostname = remote.getHostName();
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for ( port = 0; port < 65536; port++) {
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try {
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Socket s = new Socket(remote,port);
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System.out.println("Server is listening on port " + port+ " of " + hostname);
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s.close();
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}
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catch (IOException ex) {
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// The remote host is not listening on this port
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System.out.println("Server is not listening on port " + port+ " of " + hostname);
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}
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}//for ends
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}
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}
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