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>- Ä¿³Î¹öÀü(¿É¼Ç)  : 
>- µ¥¸ó¹öÀü(¿¹:apache 1.3.27) : 
>- µ¥¸ó¼³Ä¡À¯Çü(RPM/ÄÄÆÄÀÏ/±âŸ)
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>*Áß¿ä:ÇÑ±Û ¹®ÀÚ°¡ Çϳªµµ ¾øÀ¸¸é ½ºÆÔÆäÀÌÁö·Î À̵¿ÇÕ´Ï´Ù(½ºÆÔ ÇÊÅ͸µ).
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>¿À´Ãµµ »êÀÌ´ÔÀÇ Á¶¾ðÀ» ¾ò°íÀÚ ÇÕ´Ï´Ù.
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>cpu°¡ 99% ³ª¹ö·Á¼­..
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strace ´Â Á¦°¡ °ÅÀÇ »ç¿ëÇØ º¸Áú ¾Ê¾Æ Àß ¸ð¸£°ÚÁö¸¸

strace -fFp pid

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strace -fFp pid 2>&1 | tee -a strace.log

ÀÌ ¹æ¹ýÀ¸·Î Çغ¸¼¼¿ä.



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>½ÇÁ¦ ¼­¹ö ¾ÆÀÌÇÇ´Â 192.168.100.202ÀÔ´Ï´Ù¸¸.

>netstat·Î º¸¸é 192.168.100.202:22  ·Î Á¦´ë·Î Ç¥½ÃµÇ´Â 
>ºÎºÐµµ ÀÖÁö¸¸, 192.168.100.20:20010 ÇüÅ·Π192.168.100.20ÇüÅ·Î

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>¸¶Á÷¸· ºÎºÐÀÇ IP°¡ 202¾Æ´Ï°í 20ÇüÅ·Πº¸ÀÌ´Â ÀÌÀ¯¸¦ ¸ð¸£°Ú½À´Ï´Ù.
>´Ü¼øÈ÷ netstatÀÇ ¹ö±×Àϱî¿ä..
>[tel@ap2 tcpdump-AP2]$ netstat -na
>0 ::ffff:192.168.100.202:22   ::ffff:63.195.149.81:47854  ESTABLISHED 
>tcp        0      0 ::ffff:192.168.100.20:20010 ::ffff:123.200.79.253:2339 
ESTABLISHED 
>tcp        0      
>tcp        0      0 ::ffff:192.168.100.20:20010 ::ffff:214.249.100.224:1708
ESTABLISHED 
>tcp        0         0 ::ffff:192.168.100.202:22   ::ffff:64.195.149.81:47889 
ESTABLISHED 
>tcp        0      0 ::ffff:192.168.100.20:20010 ::ffff:215.249.98.240:1236 
ESTABLISHED 


ifconfig À¸·Î ½ÇÁ¦ 192.168.100.20 ÀÎÅÍÆäÀ̽º°¡ ÀÖ´ÂÁö È®ÀÎÇØ º¸¼¼¿ä.
¹ö±×°¡ ¾Æ´Ï¶ó¸é ¾ø´Â ÀÎÅÍÆäÀ̽º°¡ »ý±æ ¼ö´Â ¾ø½À´Ï´Ù.

netstat -atnp ÀÇ °á°ú¿¡¼­ 20010 Æ÷Æ®°¡ ¾î´À ÇÁ·Î±×·¥¿¡¼­ »ç¿ëÇÏÁö´Âµµ È®ÀÎÇØ º¸¼¼¿ä.

 
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´ÙÀ½±Û : read-only file system ¿¡ ´ëÇؼ­  
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µð¹ö±×³»¿ëÀ» ÆÄÀÏ¿¡ ³²±â´Â ¹ý read-only file system ¿¡ ´ëÇؼ­
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