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±Û¾´ÀÌ :¹ÚÁ¤È£ 2000³â 2¿ù 03ÀÏ 09:03:31

Áö±Ý»óȲÀº unix webserverÀÇ servlet¿¡¼­ ¿ø°ÝÁö unixÀÇ ¸í·É¾î¸¦ ½ÇÇà½Ãų
·Á°í Çϴµ¥ socket À¸·Î port 23À¸·Î Çϴµ¥ ±×´ÙÀ½ id¿Í password¸¦ ¾î¶»°Ô
³Ö¾î¾ß ÇÒÁö ¸ð¸£°Ú±º¿ä .
ftp´Â ¿¹Àü¿¡ port 21·Î Á¢¼ÓÇؼ­ USER ¾ÆÀ̵ð , PASS Æнº¿öµå¸¦ ½á¼­ Á¢¼ÓÇß
¾ú´Âµ¥ ´Ü¼øÈ÷ Àú´Â telnet Á¢¼Óµµ °°Àº ¹æ¹ýÀ¸·Î ÇÏ¸é µÉÁÙ ¾Ë°í Çߴµ¥ Àß¾È
µÇ´Â±º¿ä.
¾Æ½Ã´ÂºÐÀÌ ÀÖÀ¸½Ã¸é Á» ÀÚ¼¼È÷ ¾Ë·ÁÁÖ¼¼¿ä!
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Socket echoSocket = null;
PrintWriter out1 = null;
BufferedReader in = null;

try {

echoSocket = new Socket("200.6.4.90", 23);
out1 = new PrintWriter(echoSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(echoSocket.getInputStream()));


} catch (UnknownHostException e) {
System.err.println("È£½ºÆ®°¡ ÀÌ»óÇÕ´Ï´Ù.");
System.exit(1);
} catch (IOException e) {
System.err.println("ÀÔÃâ·Â ¿¡·¯ÀÔ´Ï´Ù.");
System.exit(1);
}



try {

BufferedReader stdIn;
String userInput;
out1.println("USER 973333");
out1.println("PASS");
out1.println("ls");
out1.close();
in.close();
echoSocket.close();


} catch (Exception e){
System.out.println("¿¬°áÀÌ ²÷°å½À´Ï´Ù.");
}


ÀÌ»óÀÌ°í Á¦¹ß °í¼ö´ÔµéÀÇ Á¶¾ð ºÎŹµå¸³´Ï´Ù.



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