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  ÇÑÅë ADSL¿¡¼­ À¥Áö¿¬ ¹®Á¦ iptables·Î ÇØ°áÇϱâ (¹Î»óÈ£) ÀÛ¼ºÀÏ : 2003/09/03 22:55
 
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          [ ÀÌÀüÈ­¸é / ¼öÁ¤ ]   ºñ¹Ð¹øÈ£ :     Àμâ¿ë È­¸é
      Ãâó : http://kltp.kldp.org/stories.php?story=01/11/01/6277115

    tcp-MSS target¿¡ ´ëÇÑ ¾ê±â´Â Netfilter È®Àå HOWTO ¿¡ ³ª¿Â ³»¿ëÀ̱ä ÇÏÁö¸¸
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    ÇÑÅë ADSL »ç¿ë½Ã À¥Áö¿¬ ¹®Á¦ iptables rule ·Î ÇØ°áÇϱâ.
    ±Û¾´ÀÌ : ¹Î»óÈ£ (2001³â 11¿ù 01ÀÏ ¿ÀÈÄ 11:51) [ ³×Æ®¿öÅ© ]


    ±âÁ¸ TIP¿¡¼­ ADSL Áö¿¬¹®Á¦¸¦ ÀÌ¹Ì ´Ù·é ±ÛÀ» º¸¾Ò½À´Ï´Ù.

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    ÇØ°áµÇ´Â±º¿ä..

    #iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu

    À§ rule À» º¼¶§ target À¸·Î TCPMSS ·Î ÁöÁ¤ÀÌ µÇ¾î Àִµ¥
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    À§ÀÇ rule À» ½ÇÇàÇßÀ»¶§ target ÀÌ ¾ø´Ù°í error ¸Þ¼¼Áö¸¦
    »Ñ¸°´Ù¸é Ä¿³Î ÄÄÆÄÀÏÀ» Çѹø ÇØÁÖ¼Å¾ß ÇÕ´Ï´Ù.

    Ä¿³Î ÄÄÆÄÀÏÀº Âü°í ¹®¼­°¡ ¸¹À¸´Ï ÀÚ¼¼ÇÑ ¼³¸íÀº »ý·«ÇÏ°í
    TCPMSS target À» Ãß°¡ÇÏ´Â ºÎºÐ¸¸ ¼³¸í µå¸®°Ú½À´Ï´Ù.

    Ä¿³Î ¼³Á¤¿¡¼­ ´ÙÀ½°ú °°ÀÌ ¼ø¼­´ë·Î µé¾î°¡¼­ tcpmss ¶ó´Â
    ¹®ÀÚ°¡ µé¾î°£°Å´Â ¸ðµÎ ¸ðµâÀ̳ª Ä¿³Î¿¡ »ðÀÔÇϵµ·Ï ÇÕ´Ï´Ù.

    Networking options --> IP: Netfilter Configuration --->

    tcpmss match ¿Í TCPMSS target 2°³°¡ ÀÖÀ» °Ì´Ï´Ù.
    ±× Áß¿¡ TCPMSS target support ÀÇ help ¸¦ º¸¸é Á¦°¡ À§¿¡¼­
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    Ä¿³Î·Î ºÎÆÃÇÏ¿© À§ÀÇ rule À» Àû¿ëÇÏ¸é µË´Ï´Ù.
    (´ç¿¬È÷ À§ÀÇ rule °ú ÇÔ²² ¸Å½ºÄ¿·¹À̵ù rule µµ ½ÇÇà½ÃÄÑ¾ß °ÚÁö¿ä?)

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