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º¸¾È ÄÁÅÙÃ÷


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1. UDP Scan Starting nmap V. 3.00 ( www.insecure.org/nmap ) Warning: OS detection will be MUCH less reliable because we did not find at least 1 open and 1 closed TCP port Interesting ports on (168.126. . ): (The 1462 ports scanned...

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µ¿Àû IPÁÖ¼Ò ÇÒ´ç ȯ°æ¿¡¼­ snort¸¦ µ¿ÀÛÇϱâ À§ÇÑ Åø

ÀÌ ¾ÆƼŬÀº µ¿ÀûÀ¸·Î ÇÒ´çµÈ IPÁÖ¼Ò È¯°æ¿¡¼­ SnortIDSÀÇ ¿î¿µÀ» µµ¿ÍÁÖ´Â ÀÛÀº Åø ÇÁ·Î±×·¥ÀÇ »ý¼º¿¡ ´ëÇÑ ³»¿ëÀ» ´Ù·é´Ù. SnortÀÇ configurationÆÄÀÏ(snort.conf)´Â ¸ð´ÏÅ͵Ǵ ³×Æ®¿÷°ú ¼­¹ö¿¡ ´ëÇÑ IP¼ýÀÚ¸¦ ±âÀÔÇÑ´Ù. ¿µ±¸ÀûÀÌÁö ¾ÊÀº IPÁÖ¼Ò °¡ÀÔÀÚµé ÇÑÅ×´Â ¸Å¹ø µ¥ÀÌÅÍ ¸µÅ© Á¢¼ÓÀ» ÃʱâÈ­ ÇÏ°í, »õ·Î¿î ÁÖ¼Ò°¡ ÇÒ´ç µÇ¾î ±×¶§¸¶´Ù ÀÌ ÆĶó¹ÌÅ͵éÀÌ ¾÷µ¥ÀÌÆ® µÇ¾î¾ß ÇÑ´Ù. ÀÛÀº ÇÁ·Î±×...

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ħÀÔŽÁöÀÇ ¿ª»ç¿Í ¹ßÀü

Áö³­ 5³âµ¿¾È, ÄÄÇ»ÅÍ ³×Æ®¿÷ÀÇ º¸¾ÈÀº ¸ðµç »ç¶÷ÀÇ »î¿¡¼­ Áß½ÉÀÌ µÇ¾î¿Ô´Ù. ¿À´Ã³¯, ´ëºÎºÐÀÇ ÄÄÇ»ÅÍ º¸¾È¿¡ °üÇÑ Åä·ÐÀº ³×Æ®¿÷À» º¸È£ÇÏ°í, ¹æ¾îÇϱâÀ§ÇØ »ç¿ëµÇ´Â µµ±¸ ¶Ç´Â ±â¼ú¿¡ ÁýÁߵȴÙ. ÀÌ ¹®¼­ÀÇ ¸ñÀûÀº ŽÁö, ºÐ¼®ÇÏ°í ¾ÇÀÇ ÀÖ´Â È°µ¿À» ¸®Æ÷Æ®ÇÏ´Â °Í ÀÌ´Ù. ¶Ç, ¿À´Ã°ú ¹Ì·¡ÀÇ »óȲÀ» ³ªÅ¸³½´Ù. ÇöÀç ³×Æ®¿÷ ¹æ¾î¿¡ »ç¿ëµÇ´Â ¸¹Àº ±â¼ú°ú µµ±¸¿¡´ëÇØ ¾Ë¾Æº¼ ¿¹Á¤ÀÌ´Ù. ¾ÈÀüÇÑ ´Ü°è¸¦ Á¦°øÇÏ´Â µµ±¸´Â ÄÄÇ»ÅÍ ³×...

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SSH and Intrusion Detection

SSH ÇÁ·ÎÅäÄÝÀÇ »ç¿ëÀº »ç¿ëÀÚ°¡ À̸§°ú ¾ÏÈ£¸¦ Àü¼ÛÇÒ ¶§ ¾Ïȣȭ¸¦ ÅëÇÏ´Â ¹æ¹ýÀ¸·Î ¿ø°Ý ÄÄÇ»ÅÍ Á¢±ÙÀÇ À§ÇèÀ» ÁÙ¿´À¸³ª, ÆäÀ̷εå¿Í Åͳαâ´ÉÀ¸·Î SSH¸¦ »ç¿ëÇصµ IDSÀÇ Ä§ÀÔÀ» ¸·Áö ¸øÇÏ´Â °æ¿ì°¡ Á¾Á¾ ÀÖ´Ù. SSH ÇÁ·ÎÅäÄÝÀÌ ´ë·®ÀÇ µ¥ÀÌÅÍÀÇ ¾Ïȣȭ¿Í ÇÁ·ÎÅäÄÝÀÇ Åë°ú ´É·Â¿¡ Ãë¾àÁ¡ÀÌ Àֱ⠶§¹®ÀÌ´Ù. ÀÌ ³í¹®¿¡¼­´Â SSH ÇÁ·ÎÅäÄÝÀÇ ¿ªÇÒ°ú ¹®Á¦Á¡, ħÀÔŽÁö ½Ã½ºÅÛÀÇ Á¾·ù¿Í ¹æ¹ý, °¨½Ã µµ±¸·Î¼­ SSH µ¥¸óÀ» ...

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Building a More Secure Network (Secure Network Design with little outlay)

Free & Open Source Tools OpenBSD (Berkeley Software Distribution) Provide high performance with stability, security Provide greater level of TCP protocol security syslog, firewalling Packet Filter Packet Filtering OS fingerpri...

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An Overview of Remote Operating System Fingerprinting

¿î¿µÃ¼Á¦ ½Äº° OS fingerprinting the science of determining the operating system of a remote computer on the Internet. Ãë¾àÁ¡ ºÐ¼®À» À§ÇÑ º¸¾ÈÀü¹®°¡(¡®white-hats¡¯)À̳ª °ø°ÝÀü »çÀüÁ¤º¸ ¼öÁýÀ» À§ÇÑ ÇØÄ¿(¡®Black-hats¡¯)¿¡ ÀÇÇØ »ç¿ë ÀüÅëÀû °ø°Ý´Ü°è 1´Ü°è : Á¤º¸¼öÁý 2´Ü°è : ¼­ºñ½º ¹× ½Ã½ºÅÛ Å½Áö ...

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Extranet Access Management(EAM)

EAM °³¿ä ÅëÇÕÀÎÁõ, ±ÇÇÑ°ü¸® ¼Ö·ç¼Ç EAM ÀÎÅͳÝ, ÀÎÆ®¶ó³Ý, C/S ȯ°æ¿¡¼­ È¿°úÀûÀÎ ÅëÇÕÀÎÁõ(SSO) ȯ°æ°ú À̸¦ ±â¹ÝÀ¸·Î ÅëÇÕµÈ ±ÇÇÑ°ü¸®(Access control)½Ã½ºÅÛÀ» ±¸ÃàÇϱâ À§ÇÑ Á¢±ÙÁ¦¾î ¼Ö·ç¼Ç EAM Çʿ伺 ÀÀ¿ë º°·Î ´Ù¸¥ ID/PASS °ü¸® ºÎ´ã ü°èÀûÀÎ ½Ã½ºÅÛ º¸¾È°ü¸®Ã¼°è ºÎÀç·Î ÅëÇÕµÈ º¸¾È°¨»ç ¾î·Á¿ò ¿î¿µ¾÷¹« »ý»ê¼º ÀúÇÏ ¹× Áߺ¹ÅõÀÚ ¹æÁö º» ³í¹®¿¡¼­ EAM S/W¸¦ ¼Ò°³ÇÏ´Â ÀÌÀ¯ E...

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¿ú(worm)ÀÇ ¹ø½Ä°ú ´ëÀÀÃ¥

¾Ç¼º ÄÚµå °³¿ä Á¦ÀÛÀÚ°¡ ÀǵµÀûÀ¸·Î »ç¿ëÀÚ¿¡°Ô ÇÇÇظ¦ ÁÖ°íÀÚ ¸¸µç ÇÁ·Î±×·¥, ¸ÅÅ©·Î, ½ºÅ©¸³Æ® µî ½ÇÇà °¡´ÉÇÑ ÇüÅÂ

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½Ã½ºÅÛ º¸¾È °úÁ¦

¹öÆÛ ¿À¹öÇ÷οì(Buffer Overflow)´Â ¶§¶§·Î ÇØÄ¿°¡ ½Ã½ºÅÛÀÇ Á¦¾î±ÇÀ» °¡Áú¼ö ÀÖ´Â º¸¾ÈÀÇ Ãë¾àÁ¡ÀÌ µÉ¼ö ÀÖ´Ù. National Institute of Standard and Technologies ¿¡ µû¸£¸é, 2003³âµµ¿¡ º¸°íµÈ Ãë¾àÁ¡ÀÇ 23%°¡ ¹öÆÛ ¿À¹öÇÃ·Î¿ì ¾îÅðú °ü·ÃÀÌ ÀÖ´Ù.(icat.nist.gov) ¹öÆÛ ¿À¹öÇ÷οì´Â ¹öÆÛ°¡ °¡Áö°í ÀÖ´Â ¹öÆÛ ¿µ¿ªº¸´Ù ´õ ¸¹Àº µ¥ÀÌÅ͸¦ ³ÖÀ½À¸·Î½á ¹ß»ýÇÑ´Ù...

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