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BBS >> ¼³Ä¡, ¿î¿µ Q&A | ³×Æ®¿÷, º¸¾È Q&A | ÀÏ¹Ý Q&A || Á¤º¸¸¶´ç | AWS || ÀÚÀ¯°Ô½ÃÆÇ | ±¸Àα¸Á÷ || °øÁö»çÇ× | ÀÇ°ßÁ¦½Ã
[DNSº¸¾È]Á¸ ÆÄÀÏ Àü¼Û¿¡ °üÇÑ ³»¿ªÀ» Àü¼Û ¹æÁö....

 
±Û ¾²±â   ´äº¯ ´Þ±â    Ä¿ÇǴнº, ½Ã½ºÅÛ ¿£Áö´Ï¾îÀÇ ½°ÅÍ °Ô½ÃÆÇ À妽º -> ½Ã½ºÅÛ ¼³Ä¡ ¹× ¿î¿µ
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bird72



°¡ÀÔ: 2003³â 9¿ù 24ÀÏ
¿Ã¸° ±Û: 77

¿Ã¸®±â¿Ã·ÁÁü: 2003.12.12 ±Ý, 1:50 pm    ÁÖÁ¦: [DNSº¸¾È]Á¸ ÆÄÀÏ Àü¼Û¿¡ °üÇÑ ³»¿ªÀ» Àü¼Û ¹æÁö.... Àοë°ú ÇÔ²² ´äº¯

¾È³çÇϼ¼¿ä Ç×»ó µµ¿ò¹Þ´Â Ãʺ¸°ü¸®ÀÚ ÀÔ´Ï´Ù.

³×ÀÓ¼­¹öÀÇ Á¸¿µ¿ª¿¡ °üÇÑ Á¢±ÙÀ» ¹æÁöÇÏ·Á°í ¾Æ·¡¿Í °°ÀÌ ¼³Á¤À» Çß½À´Ï´Ù.

options {
directory "/var/named";
allow-query { 211.55.52.254; 211.55.52.253; };
};

ÀÌ·¸°Ô ¼³Á¤À» ÇÏ°í ·Î±×¸¦ »ìÆ캸´Ï...

Security Violations
=-=-=-=-=-=-=-=-=-=
Dec 12 13:01:26 xxx named[22680]: client 202.30.143.43#32911: query 'ns.xxx.com/IN' denied
Dec 12 13:01:26 xxx named[22680]: client 202.30.143.43#32911: query 'ns.xxx.com/IN' denied
Dec 12 13:06:11 xxx named[22680]: client 203.255.112.34#48917: query 'ns.xxx.com/IN' denied
Dec 12 13:06:11 xxx named[22680]: client 203.255.112.34#48917: query 'ns.xxx.com/IN' denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:59 xxx named[22680]: client 203.255.112.34#48917: query 'test.com/IN' denied
Dec 12 13:06:59 xxx named[22680]: client 203.255.112.34#48917: query 'test.com/IN' denied
Dec 12 13:07:37 xxx named[22680]: client 217.37.24.165#53168: query (cache) denied
Dec 12 13:07:38 xxx named[22680]: client 217.37.24.165#53168: query (cache) denied


Unusual System Events
=-=-=-=-=-=-=-=-=-=-=
Dec 12 13:01:26 xxx named[22680]: client 202.30.143.43#32911: query 'ns.xxx.com/IN' denied
Dec 12 13:01:26 xxx named[22680]: client 202.30.143.43#32911: query 'ns.xxx.com/IN' denied
Dec 12 13:06:11 xxx named[22680]: client 203.255.112.34#48917: query 'ns.xxx.com/IN' denied
Dec 12 13:06:11 xxx named[22680]: client 203.255.112.34#48917: query 'ns.xxx.com/IN' denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:52 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:53 xxx last message repeated 3 times
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.23#1154: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:54 xxx named[22680]: client 168.126.63.16#1536: query (cache) denied
Dec 12 13:06:59 xxx named[22680]: client 203.255.112.34#48917: query 'test.com/IN' denied
Dec 12 13:06:59 xxx named[22680]: client 203.255.112.34#48917: query 'test.com/IN' denied
Dec 12 13:07:37 xxx named[22680]: client 217.37.24.165#53168: query (cache) denied
Dec 12 13:07:38 xxx named[22680]: client 217.37.24.165#53168: query (cache) denied

ÀÌ·± ·Î±×µéÀÌ ÁÖ¿í ½×À̴µ¥...

ÀÌ°Ô Á¤»óÀΰ¡¿ä??

Ȥ½Ã ´Ù¸¥ ³×ÀÓ¼­¹öµéÀÌ ÀúÈñ ¼­¹ö¸¦ ¸øã°Ô µÇ´Â °ÍÀº ¾Æ´Ò±î¿ä??

±Ã±ÝÇÕ´Ï´Ù..

ÀÌ°Ô ¾î¶² »óȲÀÌÁÒ??
_________________
ilovesusu
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»ç¿ëÀÚ Á¤º¸ º¸±â ºñ¹Ð ¸Þ½ÃÁö º¸³»±â MSN ¸Þ½ÅÀú
truefeel
Ä«Æä °ü¸®ÀÚ


°¡ÀÔ: 2003³â 7¿ù 24ÀÏ
¿Ã¸° ±Û: 1277
À§Ä¡: ´ëÇѹα¹

¿Ã¸®±â¿Ã·ÁÁü: 2003.12.12 ±Ý, 2:11 pm    ÁÖÁ¦: Re: [DNSº¸¾È]Á¸ ÆÄÀÏ Àü¼Û ¸·±â Àοë°ú ÇÔ²² ´äº¯

bird72 ¾¸:
¾È³çÇϼ¼¿ä Ç×»ó µµ¿ò¹Þ´Â Ãʺ¸°ü¸®ÀÚ ÀÔ´Ï´Ù.

³×ÀÓ¼­¹öÀÇ Á¸¿µ¿ª¿¡ °üÇÑ Á¢±ÙÀ» ¹æÁöÇÏ·Á°í ¾Æ·¡¿Í °°ÀÌ ¼³Á¤À» Çß½À´Ï´Ù.

options {
directory "/var/named";
allow-query { 211.55.52.254; 211.55.52.253; };
};



Àú°Ç DNS·Î Äõ¸®(µµ¸ÞÀÎÀ» ¹°¾îº¸´Â °Í)¸¦ ³¯¸± ¼ö ÀÖ´Â IP¸¦ .254¿Í .253À¸·Î Á¦ÇÑÇعö¸®´Â °ÍÀÔ´Ï´Ù.
³»ºÎÀûÀ¸·Î ½á¾ßÇÏ´Â µµ¸ÞÀÎÀÌ ¾Æ´Ï¸é Áö¿ì°Å³ª IP´ë½Å any µîÀ» ¾²´Â°Ô.

dig @ns.linux-sarang.net linux-sarang.net axfr ¸¦ º¸¸é Á¸ÆÄÀÏÀÌ ¿ÜºÎ¿¡¼­µµ Àü¼ÛµÇµµ·Ï Çã¿ëµÇ¾î ÀÖ´Â »óÅÂÀÔ´Ï´Ù.
linux-sarang.net ·Î ½ÃÀÛÇÏ´Â µµ¸ÞÀÎÀÌ ¹«¾ùÀÌ ÀÖ´ÂÁö ¸ðµÎ ¾Ë¾Æ¹ö¸®´Â ¹®Á¦Á¡ÀÌ ÀÖ½À´Ï´Ù.

¿øÇÏ´Â°Ô À§Ã³·³ Á¸ÆÄÀÏ Àü¼ÛÀ» 2Â÷ ³×ÀÓ¼­¹ö¸¦ Á¦¿ÜÇÏ°í ¸ø Çϵµ·Ï ÇÏ´Â °ÍÀÌÁÒ?

ÄÚµå:


options {
                directory "/var/named";
                allow-transfer { localhost; 2Â÷³×ÀÓ¼­¹ö_IP; };
                version "secure! ";
};


2Â÷ ³×ÀÓ¼­¹ö°¡ ¾ø´Ù¸é allow-transfer { localhost; } ; ³ª allow-transfer { none; } ; À» ¾²¼¼¿ä.
¶ÇÇÑ º¸¾ÈÀ» À§ÇØ À§Ã³·³ bind ¹öÀüµµ ÇÔ²² ¼û±â¼¼¿ä.
Á¸ ÆÄÀÏ Àü¼ÛÀ» ¸·´Â°Ô Á¦´ë·Î µÈ °ÍÀÎÁö´Â À§ÀÇ dig À¸·Î È®ÀÎÇغ¸¼¼¿ä.

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http://coffeenix.net/doc/security/¼­¹öº¸¾ÈÀü·«.pdf ¼­¹ö º¸¾È Àü·« (À¥, ¸ÞÀÏ, DNS, MySQL µî, À±¿µÇÑ, ÁøÁ¤¿ì)
http://coffeenix.net/doc/misc/server.pdf ¼­¹öÈ£½ºÆà »ç¿ëÀÚ ¸Þ´º¾ó (104p, DNS, À¥, ³×Æ®¿öÅ©.. µî)
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truefeel
Ä«Æä °ü¸®ÀÚ


°¡ÀÔ: 2003³â 7¿ù 24ÀÏ
¿Ã¸° ±Û: 1277
À§Ä¡: ´ëÇѹα¹

¿Ã¸®±â¿Ã·ÁÁü: 2003.12.12 ±Ý, 3:00 pm    ÁÖÁ¦: Re: [DNSº¸¾È]Á¸ ÆÄÀÏ Àü¼Û. Áú¹®ÀÌ ÀÖ¾ú´Âµ¥. Àοë°ú ÇÔ²² ´äº¯

´ñ±ÛÀÌ Çϳª ´Þ¾ÆÁ® ÀÖ¾ú´Âµ¥, Áö¿öÁ³³×¿ä. ^^
´äº¯´Þ·Á°í Çß´Ù°¡´Â ÀÌ»óÇÏ´Ù ½Í¾î¼­ reloadÇغ¸´Ï Áú¹®ÀÌ Áö¿öÁ®¼­·¯...

¾îÂ÷ÇÇ ÇÑÂü ´äÀ» ´Þ´Ù°¡ »ç¶óÁø °ÍÀÌ¶ó ¾´ ±ÛÀ» ±×³É ±×´ë·Î ¿Ã¸³´Ï´Ù.

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¾à°£ ÀÌ·ÐÀûÀÎ °ÍºÎÅÍ ¼³¸íÀ» µå·Á¾ß°Ú³×¿ä.

Á¸ ÆÄÀÏÀº Àü¼ÛÀº 2Â÷³×ÀÓ¼­¹ö°¡ 1Â÷ ³×ÀÓ¼­¹ö¿¡°Ô ¿äûÀ» ÇÕ´Ï´Ù. (ÀÌ°Ç ³×ÀÓ¼­¹ö°¡ ¾Ë¾Æ¼­ ÇÕ´Ï´Ù.)
ÀÌ ¶§ 2Â÷ ³×ÀÓ¼­¹ö´Â ÀÚ½ÅÀÌ °®°í ÀÖ´Â serial num°ú 1Â÷ÀÇ °ÍÀ» ºñ±³Çؼ­
1Â÷ÀÇ serial numÀÌ ´õ Å« ¼ýÀÚÀÌ¸é µµ¸ÞÀÎÀÌ °»½ÅµÈ °ÍÀ¸·Î »ý°¢ÇÏ¿© Àü¼Û(axfr)À» ÇÏ°Ô µË´Ï´Ù.

ÀÚ~ ±×·±µ¥ ¹®Á¦´Â ±âº» ¼³Á¤À¸·Î´Â 2Â÷ ÀÌ¿Ü¿¡¼­µµ ´©±¸³ª Á¸ ÆÄÀÏ ¿äûÀ» ÇÒ ¼ö ÀÖ´Ù´Â °ÍÀÔ´Ï´Ù.
ÀÌ°Ô ¹®Á¦°¡ µÇ´Â°Ô ¸ðµç µµ¸ÞÀÎ ¸ñ·Ï(°ø°³¸¦ ¿øÇÏÁö ¾Ê´Â µµ¸ÞÀαîÁö)À» ´©±¸³ª º¼ ¼ö ÀÖ´Ù´Â °ÍÀÔ´Ï´Ù.

º¸¾È»ó ÀÌ°É ¸·±â À§Çؼ­ allow-transfer ·Î Àü¼ÛÀ» Çã¿ëÇÒ IP¸¦ ÁöÁ¤ÇÏ´Â °ÍÀ̱¸¿ä.
Á¸ ÆÄÀÏ Àü¼ÛÀÌ Çã¿ëµÈ °ÍÀÎÁö´Â ÀÌ¹Ì ¸»¾¸µå¸° ´ë·Î dig ¸í·ÉÀ¸·Î È®ÀÎ °¡´ÉÇÕ´Ï´Ù.

ÄÚµå:

dig @³×ÀÓ¼­¹ö ÇØ´ç³×ÀÓ¼­¹ö°¡_°ü¸®ÇÏ´Â_µµ¸ÞÀÎ axfr



'@³×ÀÓ¼­¹ö' ´Â ÁöÁ¤ÇÑ ³×ÀÓ¼­¹ö¿¡°Ô ¹°¾îº»´Ù´Â °ÍÀÔ´Ï´Ù.

ns.xxx.co.kr ¿¡¼­ °ü¸®ÇÏ´Â µµ¸ÞÀεéÀÌ ÀÖÁÒ?
À̸¦ Å׸é xxx.co.kr ?????.??? µîµî

dig @ns.xxx.co.kr xxx.co.kr axfr ¶Ç´Â dig @ns.xxx.co.kr ?????.??? axfr ó·³Çؼ­ µµ¸ÞÀÎ ¸ñ·ÏÀÌ
³ª¿À¸é dig ¸í·ÉÀ» ½ÇÇàÇÑ °÷¿¡¼­´Â Àü¼ÛÀÌ Çã¿ëµÈ »óÅÂÀÔ´Ï´Ù.
¹Ý´ë·Î '; Transfer failed.' ¶ó°í ³ª¿À¸é Àü¼ÛÀ» ¸·Àº °ÍÀÔ´Ï´Ù.
À§·Î
»ç¿ëÀÚ Á¤º¸ º¸±â ºñ¹Ð ¸Þ½ÃÁö º¸³»±â ±Û ¿Ã¸°ÀÌÀÇ À¥»çÀÌÆ® ¹æ¹®
bird72



°¡ÀÔ: 2003³â 9¿ù 24ÀÏ
¿Ã¸° ±Û: 77

¿Ã¸®±â¿Ã·ÁÁü: 2003.12.12 ±Ý, 3:32 pm    ÁÖÁ¦: [°¨»ç]ºü¸£°í ¼¼¼¼ÇÑ ´äº¯¿¡ ´ëÇØ °¨»çµå¸³´Ï´Ù. Àοë°ú ÇÔ²² ´äº¯

Ãæ°Ý!!

³î¶ú½À´Ï´Ù.

±×¸®°í...

°¨µ¿Çß½À´Ï´Ù.

Á¤¸» °¨»çÇÕ´Ï´Ù.

¾ÕÀÇ ±ÛÀº Á¦°¡ À߸ø¿Ã¸° °Í °°¾Æ¼­ Áö¿ü´Âµ¥...

¹ú½á ´ä±ÛÀ» ´Þ°í °è¼ÌÀ»ÁÙÀº ¸ô¶ú½À´Ï´Ù...Á˼ÛÇÕ´Ï´Ù.

´Ù½ÃÇѹø ºü¸¥ ´äº¯¿¡ °í°³¼÷¿© °¨»çµå¸³´Ï´Ù.

ÁÁÀº ÇÏ·ç µÇ¼¼¿ä ^^*
_________________
ilovesusu
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»ç¿ëÀÚ Á¤º¸ º¸±â ºñ¹Ð ¸Þ½ÃÁö º¸³»±â MSN ¸Þ½ÅÀú
truefeel
Ä«Æä °ü¸®ÀÚ


°¡ÀÔ: 2003³â 7¿ù 24ÀÏ
¿Ã¸° ±Û: 1277
À§Ä¡: ´ëÇѹα¹

¿Ã¸®±â¿Ã·ÁÁü: 2003.12.12 ±Ý, 4:02 pm    ÁÖÁ¦: Re: ºü¸£°Ô ´äº¯ÇÑ °ÍÀº ¿ì¿¬ ^^ Àοë°ú ÇÔ²² ´äº¯

bird72 ¾¸:
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¹ú½á ´ä±ÛÀ» ´Þ°í °è¼ÌÀ»ÁÙÀº ¸ô¶ú½À´Ï´Ù...Á˼ÛÇÕ´Ï´Ù.

´Ù½ÃÇѹø ºü¸¥ ´äº¯¿¡ °í°³¼÷¿© °¨»çµå¸³´Ï´Ù.

ÁÁÀº ÇÏ·ç µÇ¼¼¿ä ^^*


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´äº¯À» »¡¸® ´Þ¸é ´ç¿¬È÷ ÁÁÀº °ÍÀÌÁö¸¸ ¾È ÁÁÀº Á¡µµ ÀÖ¾î¿ä.
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