Unix/Solaris °ü·Ã°Ô½ÃÆÇ

2001/11/28(20:29) from 211.169.72.147
ÀÛ¼ºÀÚ : °­ÁÙ±â (jkkang65@hanmail.net) Á¶È¸¼ö : 2410 , ÁÙ¼ö : 108
Re: [DNS] DNS ¼³Á¤Çϱâ - 2ź
´ÙÀ½À¸·Î DNS¼­¹öºÎºÐÀ» ¼³¸í ÇÏ°Ú½À´Ï´Ù.

´ëºÎºÐÀÇ ¾÷ü¿¡¼­ DNS¼­¹ö¸¦ ÀÚü¿î¿µÇÏÁö¸¸, ¼­¹öÈ£½ºÆÃÀ» ¹Þ°Å³ª À¥È£½ºÆÃÀ» ¹Þ´Â ¾÷üµéÀº ÇØ´ç È£½ºÆþ÷üÀÇ DNS¼­¹ö¸¦ ¾²´Â °æ¿ì°¡ ¸¹½À´Ï´Ù.

±×·²°æ¿ì ÇØ´ç È£½ºÆþ÷ü¿¡ Á¤º¸º¯°æ³»¿ëÀ» »ó¼¼È÷ ¾Ë·ÁÁÖ½Ã¸é µË´Ï´Ù.

µû¶ó¼­, ¿©±â¼­´Â ÀÚü DNS¼­¹ö¸¦ ¿î¿µÇÏ´Â ¾÷ü¸¦ ±âÁØÀ¸·Î ¼³¸íÇÏ°Ú½À´Ï´Ù.

º¯°æµÇ´Â ÆÄÀϵéÀº /etc/resolv.conf , /etc/named.conf, /var/named/ÀÇ zoneÆÄÀϵéÀÔ´Ï´Ù.



ex) /etc/resolv.conf

nameserver 203.255.112.32
nameserver 203.255.112.34




À§¿Í°°ÀÌ resolv.confÆÄÀÏÀº dns¼­¹öµéÀÌ Â÷·Ê·Î ³ª¿­µÇ¾îÀִµ¥, IDC°¡ ¹Ù²î¸é DNS¼­¹öÀÇ IP°¡ ¹Ù²î¹Ç·Î À̸¦ º¯°æµÈ IP·Î ¹Ù²Ù¾îÁÖ¾î¾ß ÇÕ´Ï´Ù. (ÀÌ°Ç DNS¼­¹ö»Ó¸¸¾Æ´Ï¶ó WEB¼­¹ö³ª DB¼­¹öµî ±âŸ ¼­ºñ½º¼­¹öµé¿¡°Ôµµ ¸ðµÎ Àû¿ëµË´Ï´Ù.)



ex) /etc/named.conf

options {
           directory "/var/named";
};

zone "." IN {
           type hint;
           file "named.ca";
};

zone "localhost" IN {
           type master;
           file "localhost.zone";
           allow-update { none; };
};

zone "0.0.127.in-addr.arpa" IN {
           type master;
           file "named.local";
           allow-update { none; };
};

zone "112.255.203.in-addr.arpa" IN {
           type master;
           file "yahoo.rev";
};




±âÁ¸ÀÇ named.confÆÄÀÏ¿¡¼­ 112.255.203.in-addr.arpaºÎºÐÀ» ¹Ù²ï ³×Æ®¿öÅ©·Î ¼öÁ¤ÇØÁÖ¾î¾ß ÇÕ´Ï´Ù.



ex) /var/named/ÀÇ reverse zone(yahoo.rev)ÆÄÀÏ

@ IN SOA ns.yahoo.com. root.yahoo.com. (
                             2001101701 ; Serial
                             28800 ; Refresh
                             14400 ; Retry
                             3600000 ; Expire
                             86400 ) ; Minimum
    IN NS ns.yahoo.com.
    IN NS ns2.yahoo.com.
32 IN PTR ns.yahoo.com.




¾÷µ¥ÀÌÆ®¸¦ À§ÇÑ Serial Number¿Í PTRºÎºÐ¿¡¼­ ¾ÕÀÇ 32ó·³ IPºÎºÐ ¼öÁ¤À» ÇØÁÖ½Ã¸é µË´Ï´Ù.



ex) /var/named/ÀÇ forward zone(yahoo.rev)ÆÄÀÏ

@ IN SOA ns.yahoo.com. root.yahoo.com. (
                             2001101701 ; Serial
                             28800 ; Refresh
                             14400 ; Retry
                             3600000 ; Expire
                             86400 ) ; Minimum
  IN NS ns.yahoo.com.
  IN NS ns2.yahoo.com.
  IN MX 10 mail.yahoo.com.

  ns        A 203.255.112.32
  ns2      A 203.255.112.34
  www   A 203.255.112.35
  www2 A 203.255.112.36
  mail     A 203.255.112.37




À§¿¡¼­ AliasºÎºÐÀÇ IP¸¦ ¹Ù²ï IP·Î ¼öÁ¤ÇØÁÖ½Ã¸é µË´Ï´Ù.

ÀüºÎ ¼öÁ¤ÀÌ µÇ¾ú´Ù¸é named¸¦ ¸®½ºÅ¸Æ®ÇØÁֽô°͵µ ÀØÁö ¸¶½Ã±¸¿ä.

ÀÌ·¸°Ô ÇÏ¿© DNS¼­¹öÀÇ ¼³Á¤º¯°æÀ» ¿Ï·áÇÏ¿´½À´Ï´Ù.

º¸Åë µµ¸ÞÀεî·Ï±â°ü¿¡¼­ Á¤º¸º¯°æµÈ ³»¿ëÀÇ ¾÷µ¥ÀÌÆ®½Ã°£ÀÌ ½ÇÁ¦·Î DNS¼­¹öÀÇ ¼³Á¤º¯°æ ¾÷µ¥ÀÌÆ® ±â°£º¸´Ù ±æ±â ¶§¹®¿¡, ÀÌ ½Ã°£Â÷¸¦ »ý°¢ÇØ, ÀϹÝÀûÀ¸·Î DNS¼­¹ö Á¤º¸º¯°æÀü¿¡ ¹Ì¸® µµ¸ÞÀεî·ÏÁ¤º¸¸¦ º¯°æÇϴ°ÍÀÌ ÁÁ½À´Ï´Ù.

Á¦´ë·Î ¼³Á¤ÇØÁ̴ּٸé, º¸Åë KR µµ¸ÞÀÎ °°Àº°æ¿ì´Â ÇÏ·çÀÌƲ Á¤µµ, COM°°Àº ±¹Á¦µµ¸ÞÀÎÀÇ °æ¿ìµµ ºü¸£¸é ÇÏ·ç ±æ¸é »ïÀÏÁ¤µµ¸é DNSÁ¤º¸°¡ ÆÛÁö°Ô µË´Ï´Ù.

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