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Re: NAT¶§¹®¿¡ ±×·¯´Âµ¥¿ä



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From: zombe <o30919@hanmail.net> = "ZB"
To: <questions@kr.FreeBSD.ORG>
Sent: Wednesday, October 18, 2000 4:46 PM


ZB> NAT&¶§¹®¿¡ Á×°Ù¾¹´Ï´Ù... Á¦ ¼³Á¤È­ÀÏÀ» µå¸±ÅÂ´Ï Á¦²¨Á» ¼³Á¤ÀÌ
ZB> Ʋ¸°ºÎºÐÀ» Á» °íóÁּż­ º¸³»ÁÖ½Ã¸é ¾ÈµÉ±î¿ä?

½ÉÁ¤ ÃæºÐÈ÷ ÀÌÇØÇÕ´Ï´Ù!  (°í¼ö´Ôµé²²¼­ Á» µµ¿ÍÁֽʽÿÀ)
Áö³­¹ø¿¡ Á¦°¡ °³ÀÎÀûÀ¸·Î º¸³»µå¸° ³»¿ë ÂüÁ¶ÇϽʽÿÀ.
(Àú Á¤µµ¸é µÉ °Í °°¾Æ¼­ Á¦ ¼³Á¤ÆÄÀÏÀº ¾Èº¸³»µå·È½À´Ï´Ù.  Á¦ ¼³Á¤ÆÄÀÏÀº ÀÌ¹Ì À̰÷¿¡ ´Ù °ø°³µÇ¾î ÀÖ±¸¿ä)  ±×¸®°í Áö³­¹ø¿¡ ¹°¾î¿À¼ÌÀ» ¶§ ´Ô²²¼­ ¾²½Ã´Â ¼­ºñ½º°¡ µÎ·ç³ÝÀ̶ó°í ÇØ¼­ ±×°÷¿¡ °¡ºÃ´Âµ¥, (Á¦°¡ ÇÑÅëÀ» ½á¼­ ¼º°øÇؼ­°¡ ¾Æ´Ï¶ó) "ÇÑÅëÀÌ ¿åÀ» ¹«ÁøÀå ¸¹ÀÌ ¸Ô±â´Â ÇÏÁö¸¸, ±×¸®°í µéÀ»¸¸µµ ÇÏÁö¸¸, ±×·¡µµ ÇÑÅëÀÌ ³´´Ù",¶ó´Â »ý°¢ÀÌ µì´Ï´Ù.

¾à°üÀ» º¸´Ï(FreeBSD, Linux °ü·Ã FAQ´Â ¾ø¾îº¸À̴±º¿ä) ´ÙÀ½°ú °°Àº ³»¿ëÀÌ ÀÖ´õ±º¿ä..
------------------------------------------------------------
°¡ÀÔÀÚÃø ÄÉÀ̺í¸ðµ© ÇÏ´Ü¿¡ HTTP, SMTP, FTP, NNTP µîÀÇ ¼­¹ö¸¦ ¼³Ä¡ÇÒ ¼ö ¾ø½À´Ï´Ù. °¡ÀÔÀÚÃø ÄÉÀ̺í¸ðµ© ÇÏ´Ü¿¡ °¡ÀÔÀÚ °íÀ¯ÀÇ ¼­ºê³×Æ®¿öÅ©(subnetwork)¸¦ ±¸¼ºÇÒ ¼ö ¾ø½À´Ï´Ù. ¸¸ÀÏ ÀÌ·¯ÇÑ ¿ëµµ·Î »ç¿ëÇϽôٰ¡ ¹ß°ßµÇ¸é ¼­ºñ½º¸¦ Á¦ÇÑ ¹Þ°Ô µË´Ï´Ù. º¸´Ù ÀÚ¼¼ÇÑ ³»¿ëÀº °¡ÀÔÀÚ ÀÌ¿ë¾à°üÀ» ÂüÁ¶ÇϽñ⠹ٶø´Ï´Ù
-------------------------------------------------------
Á¦°¡ Á¤¸» »ç¶ûÇÏ´Â ÄÚ¸®¾Æ´Â ¸ðµç »ç¶÷ÀÌ ´Ù ȨÆäÀÌÁö¸¦ °¡Áö°í ÀÖ°í, ±× °ø°£¿¡¼­ ÀÚÀ¯·Ó°Ô Àǰ߱³È¯, Àü´ÞÀÌ µÇ´Â ³ª¶óÀÔ´Ï´Ù...  ¼ºñ..

------------ Áö³­¹ø ´äº¯ ----------------
# Àúµµ À߸𸣰ھ "Open"ÀÌ º¸ÀÌ´Â °÷¿¡´Ù ´Ù ½è½À´Ï´Ù.  
# ÀÌ·¸°Ô ÇØ¼­ ¾ÈµÇ¸é Àúµµ Àß ¸ð¸£°Ú½À´Ï´Ù...<--- ´ÙÀ½¿¡ ¹°À¸¼Åµµ ´ë´ä¸øÇÔÀ» ÀÌÇØÇϼ¼¿ä~~
# ¿¡°ø, Á˼Û..
# scritp Áß¿¡ ${natd_interface} °¡ ¾ÈµÇ¸é ±â³É $natd_interface·Î ÇØ º¸½Ê½Ã¿À.
# Àú´Â 4.1À̾ú´Âµ¥, ${}¿´°Åµç¿ä.

........ ¾Õ¿¡ »ý·« ......
if [ "${firewall_type}" = "open" -o "${firewall_type}" = "OPEN" ]; then

 $fwcmd -f flush
 $fwcmd add 1000 pass all from 127.0.0.1 to 127.0.0.1
 $fwcmd add 2000 divert natd all from any to any via ${natd_interface}
 $fwcmd add 6500 pass all from any to any
......... µÚ¿¡ »ý·« .........

ZB>±×¸®°í ftp¸¦ ±âº» ÀûÀÎ ftpd
ZB> ¸¦ ¾²´Âµ¥ À¥ ºê¶ó¿ìÀú·Î Á¢¼ÓÀÌ ¾ÈµË´Ï´Ù ftpÀü¿ëŬ¶óÀÌ¾ðÆ®·Î´Â µÇ´Âµ¥ ¹«½¼´Ù¸¥ ¼³Á¤ÀÌ ÇÊ¿äÇѰ¡¿ä? Á¦°¡ ¾²´ÂISP¾÷ü¿¡¼­
ZB> 80¹øÆ÷Æ®¸¦ ¸·¾Æ³ö¼­ ¾ÆÆÄÄ¡µµ À߸øµÈÁپ˾Ҿú´Âµ¥ ftpµµ ¸·¾Ò³ª...  ftpÆ÷Æ®¼³Á¤Àº ¾îµð¼­Çϳª¿ä? ±âº»ftp´Â ¾ÈµÇ³ª....
ZB> 
ZB> °¨»çÇÕ´Ï´Ù

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