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DNS´Â tree±¸Á¶·Î µÇÀÖ´Â °èÃþ±¸Á¶ÀÌ´Ù. ÀϹÝÀûÀÎ treeµ¥ÀÌÅÍ-±¸Á¶¿¡¼ »óÀ§´Â '.' À¸·Î µÇ¾î ÀÖ°í À̰ÍÀº 'root'·Î ´Ù½Ã ºÒ¸®¿ö Áø´Ù. '.' ¾Æ·¡¿¡´Â ¼ö¸¹Àº ÃÖ»óÀ§ µµ¸ÞÀεéÀÌ ÀÖ´Ù(TLDs:Top Level Domains);°¡Àå Àß ¾Ë·ÁÁø °ÍÀº ORG, COM, EDU, NET µîÀÌ ÀÖ´Ù. ³ª¹«Ã³·³ »Ñ¸®(root)µµ ÀÖ°í °¡Áö(branch)µµ ÀÖ´Ù°í »ý°¢ÇÏÀÚ. ÄÄÇ»ÅͰúÇп¡ ´ëÇÑ Áö½ÄÀÌ ÀÖ´Ù¸é DNS¸¦ treeºÎºÐ, ¸¶µð, ÀÙ¸¶µð, ºÀ¿ì¸®·Î ÀνÄÇÏ°Ô µÉ °ÍÀÌ´Ù. Á¡(.)ÀÌ ºÐ±âÁ¡ÀÌ°í ºÀ¿ì¸®°¡ À̸§µéÀÌ´Ù.
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$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu. ;; res options: init defnam dnsrch ;; got answer: ; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 13 ;; AUTHORITY SECTION: . 5d23h48m47s IN NS I.ROOT-SERVERS.NET. . 5d23h48m47s IN NS E.ROOT-SERVERS.NET. . 5d23h48m47s IN NS D.ROOT-SERVERS.NET. . 5d23h48m47s IN NS A.ROOT-SERVERS.NET. . 5d23h48m47s IN NS H.ROOT-SERVERS.NET. . 5d23h48m47s IN NS C.ROOT-SERVERS.NET. . 5d23h48m47s IN NS G.ROOT-SERVERS.NET. . 5d23h48m47s IN NS F.ROOT-SERVERS.NET. . 5d23h48m47s IN NS B.ROOT-SERVERS.NET. . 5d23h48m47s IN NS J.ROOT-SERVERS.NET. . 5d23h48m47s IN NS K.ROOT-SERVERS.NET. . 5d23h48m47s IN NS L.ROOT-SERVERS.NET. . 5d23h48m47s IN NS M.ROOT-SERVERS.NET. ;; ADDITIONAL SECTION: I.ROOT-SERVERS.NET. 6d23h48m47s IN A 192.36.148.17 E.ROOT-SERVERS.NET. 6d23h48m47s IN A 192.203.230.10 D.ROOT-SERVERS.NET. 6d23h48m47s IN A 128.8.10.90 A.ROOT-SERVERS.NET. 6d23h48m47s IN A 198.41.0.4 H.ROOT-SERVERS.NET. 6d23h48m47s IN A 128.63.2.53 C.ROOT-SERVERS.NET. 6d23h48m47s IN A 192.33.4.12 G.ROOT-SERVERS.NET. 6d23h48m47s IN A 192.112.36.4 F.ROOT-SERVERS.NET. 6d23h48m47s IN A 192.5.5.241 B.ROOT-SERVERS.NET. 6d23h48m47s IN A 128.9.0.107 J.ROOT-SERVERS.NET. 6d23h48m47s IN A 198.41.0.10 K.ROOT-SERVERS.NET. 6d23h48m47s IN A 193.0.14.129 L.ROOT-SERVERS.NET. 6d23h48m47s IN A 198.32.64.12 M.ROOT-SERVERS.NET. 6d23h48m47s IN A 202.12.27.33 |
°¡À̵å¶óÀθ¸(referral) µé¾î¿Ô´Ù. ¿ì¸®¿¡°Ô "AUTHORITY SECTION(ÀÎÁõ ¼½¼Ç)"¸¸À» ÁÖ°í "Answer Section(ÀÀ´ä¼½¼Ç)"Àº ÁÖÁö ¾Ê¾Ò´Ù. ¿ì¸® ³×ÀÓ¼¹ö°¡ ÇϳªÀÇ ³×ÀÓ¼¹ö¸¦ ¼±ÅÃÇÒ °ÍÀÌ´Ù. ¾Æ¹«°Å³ª Áý¾îº¸ÀÚ.(ÃßõµÈ ¼¹öÁß Çϳª¸¦ Áý¾î³»¼ ´Ù½Ã ÁúÀǸ¦ º¸³»ÀÚ´Â À̾߱â°ÚÁ®...)
$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu. @H.ROOT-SERVERS.NET. ; (1 server found) ;; res options: init defnam dnsrch ;; got answer: ; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3 ;; AUTHORITY SECTION: MIT.EDU. 2D IN NS BITSY.MIT.EDU. MIT.EDU. 2D IN NS STRAWB.MIT.EDU. MIT.EDU. 2D IN NS W20NS.MIT.EDU. ;; ADDITIONAL SECTION: BITSY.MIT.EDU. 2D IN A 18.72.0.3 STRAWB.MIT.EDU. 2D IN A 18.71.0.151 W20NS.MIT.EDU. 2D IN A 18.70.0.160 |
ÀÌÁ¦ ¿ì¸®¿¡°Ô MIT.EDU¸¦ ¼±ÅÃÇÒ ¼ö ÀÖ´Ù. ´Ù½Ã Çϳª Áý¾î³» º¸ÀÚ.
$ dig +norec +noH +noques +nostats +nocmd prep.ai.mit.edu. @bitsy.mit.edu ; (1 server found) ;; res options: init defnam dnsrch ;; got answer: ; flags: qr ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4 ;; ANSWER SECTION: prep.ai.mit.edu. 3h50m7s IN A 198.186.203.18 ;; AUTHORITY SECTION: AI.MIT.EDU. 6H IN NS FEDEX.AI.MIT.EDU. AI.MIT.EDU. 6H IN NS LIFE.AI.MIT.EDU. AI.MIT.EDU. 6H IN NS ALPHA-BITS.AI.MIT.EDU. AI.MIT.EDU. 6H IN NS BEET-CHEX.AI.MIT.EDU. ;; ADDITIONAL SECTION: FEDEX.AI.MIT.EDU. 6H IN A 192.148.252.43 LIFE.AI.MIT.EDU. 6H IN A 128.52.32.80 ALPHA-BITS.AI.MIT.EDU. 6H IN A 128.52.32.5 BEET-CHEX.AI.MIT.EDU. 6H IN A 128.52.32.22 |
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. ¿¡¼ºÎÅÍ Ãâ¹ßÇØ¼ ¿ì¸®´Â °¢ µµ¸ÞÀÎ ³×ÀÓÀÇ ·¹º§¿¡¼ ³×ÀÓ¼¹ö¸¦ ¼º°øÀûÀ¸·Î ¹ß°ßÇØ ³»¾ú´Ù. ´Ù¸¥ ¼¹ö¸¦ »ç¿ëÇÏÁö ¾Ê°í ¿©·¯ºÐÀÇ DNS¼¹ö¸¦ »ç¿ëÇß´Ù¸é ´ç¿¬È÷ ±× Á¤º¸¸¦ ij½¬¿¡ ÀúÀåÇØ µÑ °ÍÀÌ°í ´çºÐ°£Àº ´Ù½Ã ¹¯Áö ¾ÊÀ» °ÍÀÌ´Ù.
ÀÌ Æ®¸®±¸Á¶¿¡¼ À̸§¾È¿¡ ÀÖ´Â "." µéÀº ºÐ±âÁ¡ÀÌ´Ù. ±×¸®°í "."Á¡µé »çÀÌÀÇ ºÎºÐÀº ÀÌ Æ®¸®±¸Á¶¿¡¼ °³º°ÀûÀ¸·Î ºÐ±âµÇ´Â ºÎºÐÀÌ´Ù. ¿ì¸®°¡ ¿øÇÏ´Â À̸§À» (prep.ai.mit.edu) ã±â À§Çؼ Æ®¸®±¸Á¶¸¦ º¸¸é ¿ì¼± ij½¬¿¡ ÀÖ´Â Á¤º¸³ª ¾Æ´Ï¸é »Ñ¸®(.)¿¡°Ô ¾î´À ¼¹ö°¡ prep.ai.mit.edu·Î °¡´Â ½ÃÀÛÁ¡(¿øº»Àº father¶ó´Â µ¿»ç¸¦ ¾¹´Ï´Ù.¿ø·ù... ±Ù¿ø...)ÀÎÁö¸¦ ¹°¾îº»´Ù. ij½¬¿¡ Á¤º¸°¡ ¾øÀ¸¸é ¹ÛÀ¸·Î ³ª°¡¼ ±× À̸§¿¡ ´ëÇÑ Á»´õ °¡±î¿î ÈùÆ®(referral,ÁöÁ¤µÈ ¼¹ö¶ó°í ¹ø¿ªµÇ´Âµ¥ ÈùÆ®°¡ ´õ Àû´çÇÒ ¼ö ÀÖ°Ú½À´Ï´Ù.)¸¦ ¾ò±â À§ÇØ Àç±ÍÀûÀ¸·Î °è¼ÓÇØ¼ ¼¹öµé¿¡°Ô Áú¹®À» ÇÏ°Ô µÈ´Ù.
ÀÚÁÖ À̾߱⠵ÇÁö´Â ¾ÊÁö¸¸ Áß¿äÇÑ µµ¸ÞÀÎÀÌ in-addr.arpa ÀÌ´Ù. 'ÀϹÝ'µµ¸ÞÀΰú À¯»çÇÏ´Ù. in-addr.arpa´Â ¿ì¸®°¡ ÁÖ¼Ò¸¦ ¾Ë°í ÀÖÀ» °æ¿ì¿¡ ±× À̸§À» ¾Ë·ÁÁØ´Ù. ¼÷ÁöÇØ¾ß ÇÒ Áß¿äÇÑ ºÎºÐÀº ip ÁÖ¼Ò°¡ in-addr.arpa µµ¸ÞÀο¡¼´Â °Å²Ù·Î »ç¿ëµÈ´Ù´Â °ÍÀÌ´Ù. ¸¸¾à¿¡ ÁÖ¼Ò 192.148.52.43À» ¾Ë°í ÀÖ´Ù°í ÇÏÀÚ. ±×·¯¸é prep.ai.mit.edu ¿¹¿¡¼ Çß´ø °Í°ú °°Àº ½ÄÀ¸·Î ÁøÇàÀÌ µÈ´Ù. ¸ÕÀú arpa. ¼¹ö¸¦ ã°í in-addr.arpa. ¼¹ö¸¦ ã°ÔµÈ´Ù. ±×¸®°í ³ª¼ 192.in-addr.arpa. ·Î, 148.192.in-addr.arpa. ·Î, 52.148.192.in-addr.arpa. ¼¹ö·Î ÇØ¼ 43.52.148.192.in-addr.arpa.¼¹ö¸¦ ã°ÔµÈ´Ù. ¿µ¸®ÇÏÁö ¾ÊÀº°¡? (±×·¸´Ù°í ´ë´äÇ϶ó°í ¿ø¹®Àº °¿äµµ ÇÑ´Ù.-.-) ¼ýÀÚ¸¦ µÚÁý¾î ³õÀº °ÍÀÌ ´Ù¼Ò°£Àº È¥¶õ½º·¯¿ï °ÍÀÌ´Ù.)
ÀÌÁ¦ ¿ì¸® µµ¸ÞÀÎÀ» Á¤ÀÇÇØ º¸ÀÚ. ¿ì¸®´Â linux.bogus¶ó´Â µµ¸ÞÀÎÀ» °¡Áö°í ¿ì¸® ¼¹ö¿¡ ¸¸µé¾î ³õÀ» °ÍÀÌ´Ù. ³ª´Â ÀÌ·¯ÇÑ °ÍÀÌ ¿ÜºÎ·Î ½ÇÁ¦ ³ª°¡Áö ¾Ê°Ô °¡Â¥ µµ¸ÞÀÎ À̸§À» ¾µ °ÍÀÌ´Ù.
½ÃÀÛÀü¿¡ Çϳª ¾Ë¾ÆµÖ¾ß ÇÑ´Ù. ¸ðµç ¹®ÀÚ°¡ ´Ù µµ¸ÞÀÎÀÌ µÇ´Â °ÍÀº ¾Æ´Ï´Ù. Á¦ÇÑÀûÀ¸·Î ¿µ¾î ¾ËÆÄºªÀÌ ¾²ÀδÙ.: a-z, 0-9, ±×¸®°í '-'(´ë½¬)°¡ »ç¿ëµÈ´Ù. ´ë¼Ò¹®ÀÚ´Â ±¸º°ÀÌ ¾ø´Ù´Â Á¡µµ ¾Ë¾Æ µÎ±â¸¦. ±×·¡¼ pat.uio.no ´Â Pat.UiO.No ¿Í °°ÀÌ ¾²ÀδÙ.
¿ì¸®´Â ÀÌ¹Ì named.conf¿¡¼ ÀÌ ºÎºÐÀ» Çß¾ú´Ù.:
zone "0.0.127.in-addr.arpa" { type master; file "pz/127.0.0"; }; |
ÀÌ ÆÄÀÏ¿¡¼´Â µµ¸ÞÀÎ ³×ÀÓÀÇ ¸¶Áö¸·¿¡ '.'ÀÌ ¾ø´Ù´Â »ç½ÇÀ» ÁÖÀÇÇØ¶ó. ÀÌ ºÎºÐÀº ¿ì¸®°¡ 0.0.127.in-addr.arpa Á¸¿¡ ´ëÇÑ Á¤ÀÇÀÌ°í ¸¶½ºÅÍ ¼¹ö¿¡ ´ëÇÑ Á¤Àǰ¡ ÀÖÀ¸¸ç pz/127.0.0À̶ó´Â ÆÄÀÏ ¾È¿¡ ÀúÀåÀÌ µÈ´Ù. ¿ì¸®´Â ÀÌ¹Ì ÀÌ ÆÄÀÏÀ» ¼¼ÆÃÇß´Ù. º¸¸é...
$TTL 3D @ IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 1 ; Serial 8H ; Refresh 2H ; Retry 4W ; Expire 1D) ; Minimum TTL NS ns.linux.bogus. 1 PTR localhost. |
À§ÀÇ named.conf¿Í´Â ´Ù¸£°Ô ÀÌ ÆÄÀϾȿ¡ ÀÖ´Â ¸ðµç µµ¸ÞÀθíÀÇ ¸¶Áö¸·¿¡´Â '.'ÀÌ ÀÖ´Ù´Â »ç½ÇÀ» ¾Ë¾ÆµÎ±æ ¹Ù¶õ´Ù. ¾î¶² À̵éÀº ¸ðµç Á¸ ÆÄÀÏÀ» $ORIGINÀ¸·Î ½ÃÀÛÇϱ⵵ Çϴµ¥ À̰ÍÀº ºÒÇÊ¿äÇÑ °ÍÀÌ´Ù. µµ¸ÞÀÎ °èÃþ¾È¿¡ Æ÷ÇԵǾî ÀÖ´Â ÀÌ Á¸ ÆÄÀϵéÀÇ ±Ù¿øÁö´Â ÀÌ¹Ì named.conf¿¡¼ ´Ù ¸í½Ã°¡ µÇ¾î Àֱ⠶§¹®ÀÌ´Ù. ÀÌ °æ¿ì¿¡´Â 0.0.127.in-addr.arpa ÀÌ´Ù.
ÀÌ 'zone' ÆÄÀÏÀº 3°³ÀÇ 'ÀÚ¿ø·¹ÄÚµå(RR:Resource Records)'¸¦ °¡Áö°í ÀÖ´Ù. SOA, NS, PTRÀÌ´Ù. SOA´Â Start Of AuthorityÀÇ ¾à¾îÀÌ´Ù. @´Â ¿øº»À» ÀǹÌÇÏ´Â °ÍÀ¸·Î À̰ÍÀº 'domain'Ä÷³¿¡¼ 0.0.127.in-addr.arpa¸¦ÀǹÌÇÏ´Â °ÍÀÌ´Ù.
0.0.127.in-addr.arpa. IN SOA ... |
NS´Â NameServerÀÇ ¾àÀÚÀÌ´Ù. ½ÃÀۺκп¡ '@'°¡ ¾ø´Ù. ÀÌ¹Ì ¾Õ ¶óÀÎÀÌ @·Î ½ÃÀÛµÇ¸é¼ @°¡ ³»Á¦µÇ¾îÀÖ´Ù. ŸÀÌÇÎ ¼ö¸¦ ÁÙ¿©¶ó. ±×·¡¼ NS¶óÀÎÀº ÀÌ·¸°Ô ¾²¿©Áø´Ù.
0.0.127.in-addr.arpa. IN NS ns.linux.bogus |
À̰ÍÀº DNS¿¡°Ô ¾î¶² ÄÄÇ»ÅͰ¡ µµ¸ÞÀÎ 0.0.127.in-addr.arpaÀÇ nameserverÀÎÁö ¾Ë·ÁÁÖ°Ô µÈ´Ù. ¿©±â¼´Â ns.linux.bogusÀÌ´Ù. 'ns'´Â º¸ÆíÀûÀ¸·Î nameserver¿¡ ºÙ´Â ¸»ÀÌ´Ù. ±×·¯³ª À¥¼¹öÀÇ À̸§ÀÌ ÀϹÝÀûÀ¸·Î www.something À̵íÀÌ ´Ù¸¥ À̸§À» Á־ ¹«¹æÇÏ´Ù.
±×¸®°í ¸¶Áö¸·À¸·Î PTR(Domain Name Pointer)·¹ÄÚµå´Â ¼ºê³Ý 0.0.127.in-addr.arpaÀÇ È£½ºÆ® ¾îµå·¹½º°¡ 1 ÀÓÀ» À̾߱â ÇÑ´Ù. Áï 127.0.0.1ÀÇ À̸§ÀÌ localhostÀÌ´Ù.
SOA ·¹ÄÚµå´Â ¸ðµç zone ÆÄÀÏÀÇ ¼µÎ¿¡ ÇØ´çµÇ¸ç °¢ Á¸ ÆÄÀϸ¶´Ù ¹Ýµå½Ã Çϳª¾¿ ÀÖ¾î¾ß ÇÑ´Ù. À̰ÍÀº ±× zone ÆÄÀÏÀÌ ¹«¾ùÀ̶ó ºÒ¸®´ÂÁö(¿©±â¼´Â ns.linux.bogus¶ó ºÒ¸°´Ù.), ´©°¡ ÀÌ contents¸¦ °ü¸®ÇÏ´ÂÁö(hostmaster@linux.bogus; emailÁÖ¼Ò¸¦ ÇÊÈ÷ ³Ö¾î¾ß ÇÑ´Ù), ÀÌ Á¸ ÆÄÀÏÀÇ ¹öÁ¯ÀÌ ¹«¾ùÀÎÁö(serial:1), ij½Ã¼¹ö¿Í 2Â÷ DNS¼¹ö´Â ¹«¾ùÀÎÁö µîÀ» ±âÀçÇÏ°Ô µÈ´Ù. ³ª¸ÓÁö Çʵå(refresh, retry,expire,minimum)Àº HOWTO ¿¡ ±â¼úµÈ °ÍÀ¸·Î ÇØ¶ó. À̰ÍÀÌ ¾ÈÁ¤ÀûÀÏ °ÍÀÌ´Ù. SOA ¶óÀÎÀÌ ¾²¿©Áö±â Àü¿¡ $TTL 3D¶õ °ÍÀ» À§¿¡ ±âÀçÇÏ±æ ¹Ù¶õ´Ù. À̰ÍÀº ¸ðµç zone file¿¡ ³Ö¾î¾ß ÇÑ´Ù.
ÀÌÁ¦ named ¸¦ À籸µ¿½ÃÄѺ¸ÀÚ.(ndc restart) ±×¸®°í dig¸í·É¾î·Î ÁúÀǸ¦ ÇØ º¸ÀÚ(¿É¼Ç -x)
$ dig -x 127.0.0.1 ; <<>> DiG 8.2 <<>> -x ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0 ;; QUERY SECTION: ;; 1.0.0.127.in-addr.arpa, type = ANY, class = IN ;; ANSWER SECTION: 1.0.0.127.in-addr.arpa. 1D IN PTR localhost. ;; AUTHORITY SECTION: 0.0.127.in-addr.arpa. 1D IN NS ns.penguin.bv. ;; Total query time: 5 msec ;; FROM: lookfar to SERVER: default -- 127.0.0.1 ;; WHEN: Sat Dec 16 01:13:48 2000 ;; MSG SIZE sent: 40 rcvd: 110 |
À§¿¡¼ 127.0.0.1¿¡¼ localhost¸¦ ã´Âµ¥ ¼º°øÇß´Ù. ÀÌÁ¦ ÁÖ¿ä ÀÛ¾÷ÀÎ linux.bogus µµ¸ÞÀÎÀ» ¸¸µé¾î º¸ÀÚ. named.confÀÇ 'zone'¼½¼Ç¿¡ Ãß°¡Ç϶ó
zone "linux.bogus" { notify no; type master; file "pz/linux.bogus"; }; |
named.conf ÆÄÀÏÀÇ µµ¸ÞÀÎ À̸§¿¡´Â '.'ÀÌ ¾ø´Ù´Â °ÍÀ» ´Ù½ÃÇѹø »ó±âÇÏÀÚ.
linux.bogusÀÇ Á¸ÆÄÀÏ¿¡´Â ÀüºÎ °¡Â¥ µ¥ÀÌÅ͸¦ ³ÖÀ» °ÍÀÌ´Ù.
; ; Zone file for linux.bogus ; ; The full zone file ; $TTL 3D @ IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds ; NS ns ; Inet Address of name server MX 10 mail.linux.bogus ; Primary Mail Exchanger MX 20 mail.friend.bogus. ; Secondary Mail Exchanger ; localhost A 127.0.0.1 ns A 192.168.196.2 mail A 192.168.196.4 |
SOA ·¹ÄÚµå ºÎºÐ¿¡¼ 2°¡Áö ºÎºÐÀ» ÁÖÀÇÇØ¼ º¸ÀÚ. ns.linux.bogus´Â A ·¹Äڵ带 °¡Áø ½ÇÁ¦ ÄÄÇ»ÅÍ¿©¾ß ÇÑ´Ù. SOA·¹Äڵ尡 À̾߱âÇÏ´Â ÄÄÇ»ÅÍÀÇ À̸§À» CNAMEÀ¸·Î ÇÏ´Â °ÍÀº ±ÔÁ¤¿¡ ¾î±ß³´Ù. ÀÌ À̸§¿¡ 'ns'°¡ µé¾î°¥ ÇÊ¿ä´Â ¾øÀ¸¸ç ¾Æ¹« À̸§ÀÌ¶óµµ ±ÔÁ¤¿¡¸¸ ¾î±ß³ªÁö ¾ÊÀ¸¸é µÈ´Ù. ´ÙÀ½À¸·Î hostmaster.linux.bogus ´Â hostmaster@linux.bogus·Î ºÁ¾ß ÇÑ´Ù. À̰ÍÀº mail alias³ª mailbox·Î¼, DNS°ü¸®ÀÚ°¡ ÀÌ ÁÖ¼Ò·Î ¸ÞÀÏÀ» ¹Þ°Ô µÉ °ÍÀÌ´Ù. À̸§ÀÌ ²À hostmasterÀÏ ÇÊ¿ä´Â ¾ø´Ù. ÀÏ¹Ý ¸ÞÀÏÁÖ¼Ò¸¦ ³Ö¾îµµ µÇÁö¸¸ 'hostmaster' ÀÎ °ÍÀÌ È¿À²ÀûÀÏ °ÍÀÌ´Ù.
MX¶ó´Â »õ·Î¿î ·¹Äڵ尡 º¸ÀδÙ. À̰ÍÀº Mail eXchanger·Î ¸ÞÀÏ ½Ã½ºÅÛ¿¡°Ô ¾îµð·Î ¸ÞÀÏÀ» º¸³»´ÂÁö ¾Ë·ÁÁØ´Ù. mail.linux.bogus ȤÀº mail.friend.bogus·Î ÀÎÇØ ÁÖ¼Ò´Â someone@linux.bogus°¡ µÈ´Ù. °¢ computerÀ̸§¾ÕÀÇ ¼ýÀÚ´Â MX·¹ÄÚµåÀÇ ¿ì¼± ¼øÀ§¸¦ ³ªÅ¸³½´Ù. °¡Àå ³·Àº ¼ýÀÚÀÇ ·¹ÄÚµå(10)¿¡ °¡´ÉÇÑ ¿ì¼± ¼øÀ§°¡ ÁÖ¾îÁø´Ù. À̰ÍÀÌ ½ÇÆÐÇÒ °æ¿ì ´õ Å« ¼ýÀÚ¸¦ ã¾Æ¼ °¡´Â¿¡ ¿©±â¿¡¼´Â 20¹øÀÇ mail.friend.bogus°¡ µÈ´Ù.
´Ù½Ã ndc restartÇÑ ÈÄ dig °á°ú¸¦ »ìÆìº¸ÀÚ.
$ dig any linux.bogus +pfmin ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23499 ;; QUERY: 1, ANSWER: 4, AUTHORITY: 1, ADDITIONAL: 1 ;; QUERY SECTION: ;; linux.bogus, type = ANY, class = IN ;; ANSWER SECTION: linux.bogus. 3D IN MX 10 mail.linux.bogus.linux.bogus. linux.bogus. 3D IN MX 20 mail.friend.bogus. linux.bogus. 3D IN NS ns.linux.bogus. linux.bogus. 3D IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial 8H ; refresh 2H ; retry 4W ; expiry 1D ) ; minimum |
Àß º¸¸é ¹ö±×°¡ ÀÖ´Ù. ¶óÀÎÀÇ
linux.bogus. 3D IN MX 10 mail.linux.bogus.linux.bogus. |
°¡ À߸øµÇ¾ú´Ù.À̰ÍÀº
linux.bogus. 3D IN MX 10 mail.linux.bogus. |
·Î ³ª¿Í¾ß ÇÑ´Ù. ÀϺη¯ ¹ö±×¸¦ ¸¸µé¾î¼ º¸¿©Áá´Ù. Á¸ ÆÄÀÏ ºÎºÐ¿¡¼ ¿ì¸®°¡ ã¾Æ³½ ºÎºÐÀ» »ìÆìº¸ÀÚ
MX 10 mail.linux.bogus ; Primary Mail Exchanger |
¸¶Ä§Ç¥°¡ ¾ø°Å³ª 'linux.bogus'°¡ Áߺ¹ÀÌ µÇ¾î ÀÖ´Ù. ³¡ºÎºÐ¿¡ ¸¶Ä§Ç¥¸¦ ÂïÁö ¾ÊÀ¸¸é Á¸ÆÄÀÏÀÇ originÀÌ ´õÇØÁ®¼ linux.bogus.linux.bogusÇüŰ¡ µÈ´Ù. ±×·¡¼
MX 10 mail.linux.bogus. ; Primary Mail Exchanger |
À̰ųª
MX 10 mail ; Primary Mail Exchanger |
ÀÇ ÇüÅ·ΠµÇ¾î¾ß ÇÑ´Ù. ³ª´Â ÈÄÀÚ¸¦ ¼±È£ÇÑ´Ù. ŸÀÌÇμö¸¦ ÁÙÀÌ°Ô µÇ´Ï±î. BIND Àü¹®°¡µéÀº ÀÌ·¯ÇÑ ºÎºÐÀ» µ¿ÀÇÇϱ⵵ ÇÏ°í ¹Ý´ëÇϱ⵵ ÇÑ´Ù. Á¸ ÆÄÀÏ¿¡¼ µµ¸ÞÀÎÀº ³¡ÀÌ `.'·Î ³¡³ª´ø°¡ ¾Æ´Ï¸é ÀüºÎ Æ÷ÇÔµÇÁö ¸»¾Æ¾ß Çϸç ÀüºÎ Æ÷ÇÔµÇÁö ¾ÊÀ» °æ¿ì´Â µðÆúÆ®·Î originÀÌ µé¾î°£´Ù.
ºÐ¸íÈ÷ named.conf ÆÄÀÏ¿¡´Â `.' ÀÌ µé¾î°¡Áö ¾Ê´Â´Ù°í Çß´Ù. `.'ÀÌ µµ¸ÞÀÎ À̸§ ´ÙÀ½¿¡ ¾ó¸¶³ª ¸¹°Ô ȤÀº Àû°Ô ¾²À̰ųª ÇÏ´Â Â÷ÀÌ·Î ¼¼ÆÃÀÌ ¾ÈµÇ°í »ç¶÷µéÀ» È¥¶õ½º·´°Ô ÇÏ´Â ÀÏÀÌ ´Ù¹Ý»çÀÌ´Ù.
±×·¡¼ »õ·Î¿î Á¸ ÆÄÀÏÀÇ »ý¼º½Ã¿¡´Â ±×¿¡ ¸Â°Ô Ãß°¡ Á¤º¸°¡ ÁÖ¾îÁ®¾ß ÇÑ´Ù.
; ; Zone file for linux.bogus ; ; The full zone file ; $TTL 3D @ IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds ; TXT "Linux.Bogus, your DNS consultants" NS ns ; Inet Address of name server NS ns.friend.bogus. MX 10 mail ; Primary Mail Exchanger MX 20 mail.friend.bogus. ; Secondary Mail Exchanger localhost A 127.0.0.1 gw A 192.168.196.1 HINFO "Cisco" "IOS" TXT "The router" ns A 192.168.196.2 MX 10 mail MX 20 mail.friend.bogus. HINFO "Pentium" "Linux 2.0" www CNAME ns donald A 192.168.196.3 MX 10 mail MX 20 mail.friend.bogus. HINFO "i486" "Linux 2.0" TXT "DEK" mail A 192.168.196.4 MX 10 mail MX 20 mail.friend.bogus. HINFO "386sx" "Linux 1.2" ftp A 192.168.196.5 MX 10 mail MX 20 mail.friend.bogus. HINFO "P6" "Linux 2.1.86" |
»õ·Î¿î ·¹Äڵ尡 º¸ÀδÙ. HINFO(Host INFOmation)´Â 2°³ÀÇ ÆÄÆ®·Î ±¸¼ºµÇ¾î ÀÖ´Ù. ù° ºÎºÐÀº Çϵå¿þ¾î³ª cpuºÎºÐ, µÑ° ºÎºÐÀº ¼ÒÇÁÆ®¿þ¾î³ª OS¸¦ Ç¥½ÃÇÑ´Ù. 'ns'¶ó ºÒ¸®´Â ÄÄÇ»ÅÍ´Â ÆæÆ¼¾ö cpu¸¦ °¡Áö°í ÀÖ°í Linux 2.0À¸·Î ±¸ÇöµÈ´Ù. CNAME(Canonical Name)Àº °¢ computer¿¡°Ô ¿©·¯ À̸§À» ÁÖ´Â ¹æ¹ýÀÌ´Ù. ±×·¡¼ www´Â nsÀÇ alias°¡ µÈ´Ù.
CNAME ·¹ÄÚµå´Â ¾à°£ÀÇ ¹®Á¦Á¡ÀÌ ÀÖ´Ù. ±×·¯³ª ±ÔÁ¤´ë·Î¸¸ ÇÏ¸é ¹®Á¦µÉ ºÎºÐÀº ¾ø´Ù. MX,CNAME,SOA ·¹Äڵ尡 CNAME ·¹Äڵ忡 ¿¬°èµÇ¾î¼´Â ¾ÈµÈ´Ù. À̰͵éÀº A ·¹Äڵ忡¸¸ ¿¬°èµÇ¾î¾ß Çϱ⠶§¹®ÀÌ´Ù. ±×·¡¼ ¾Æ·¡¿Í °°Àº °æ¿ì´Â ¾ÈµÈ´Ù.(www°¡ ÀÌ¹Ì CNAMEÀÌ´Ù.)
foobar CNAME www ; NO! |
±×·¯³ª ÀÌ·± °æ¿ì´Â µÈ´Ù.
foobar CNAME ns ; Yes! |
CNAMEÀÌ email ÁÖ¼Ò¸¦ À§ÇÑ hostnameÀ¸·Î ¾²±â¿¡´Â ÀûÇÕÇÏÁö ¾Ê´Ù°í ¿©±â´Â °ÍÀÌ Çö¸íÇÒ °ÍÀÌ´Ù. webmaster@www.linux.bogus´Â À§ÀÇ setup°ú ´Ù¸¥ À߸øµÈ °æ¿ìÀÌ´Ù. ¸¹Àº mail °ü¸®ÀÚµéÀÌ À̰ÍÀÌ ¼³·É µÇ´õ¶óµµ ÀÌ ¹æ½ÄÀ» °ÅÀÇ »ç¿ëÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù. ÀÌ·¯ÇÑ ¿À·ù¸¦ ÇÇÇÏ´Â ¹æ½ÄÀº A ·¹Äڵ带 »ç¿ëÇÏ´Â °ÍÀÌ´Ù.(´Ù¸¥ MX ·¹ÄÚµå ó·³)
www A 192.168.196.2 |
¸¹Àº DNSÀü¹®°¡µéÀÌ CNAMEÀ» »ç¿ëÇÏÁö ¾ÊÀ» °ÍÀ» ±Ç°íÇÑ´Ù. ±×·¯³ª »ç¿ë°¡´É ¿©ºÎ´Â ÀÌ HOWTO¿¡¼ ³íÇÒ ºÎºÐÀº ¾Æ´Ï´Ù.
ÇÏÁö¸¸ ¸¹Àº HOWTO¿Í ¸¹Àº ½ÎÀÌÆ®µéÀÌ ÀÌ ±ÔÄ¢À» µû¸£Áö´Â ¾Ê´Â´Ù.
»õ database¸¦ ·ÎµùÇϰí ndc reload¸¦ ½ÇÇàÇØº¸ÀÚ.
$ dig linux.bogus axfr ; <<>> DiG 8.2 <<>> linux.bogus axfr $ORIGIN linux.bogus. @ 3D IN SOA ns hostmaster ( 199802151 ; serial 8H ; refresh 2H ; retry 4W ; expiry 1D ) ; minimum 3D IN NS ns 3D IN NS ns.friend.bogus. 3D IN MX 10 mail 3D IN MX 20 mail.friend.bogus. 3D IN TXT "Linux.Bogus, your DNS consultants" gw 3D IN TXT "The router" 3D IN HINFO "Cisco" "IOS" 3D IN A 192.168.196.1 localhost 3D IN A 127.0.0.1 mail 3D IN HINFO "386sx" "Linux 1.2" 3D IN MX 10 mail 3D IN MX 20 mail.friend.bogus. 3D IN A 192.168.196.4 www 3D IN CNAME ns donald 3D IN TXT "DEK" 3D IN HINFO "i486" "Linux 2.0" 3D IN MX 10 mail 3D IN MX 20 mail.friend.bogus. 3D IN A 192.168.196.3 ns 3D IN HINFO "Pentium" "Linux 2.0" 3D IN MX 10 mail 3D IN MX 20 mail.friend.bogus. 3D IN A 192.168.196.2 ftp 3D IN HINFO "P6" "Linux 2.1.86" 3D IN MX 10 mail 3D IN MX 20 mail.friend.bogus. 3D IN A 192.168.196.5 @ 3D IN SOA ns hostmaster ( 199802151 ; serial 8H ; refresh 2H ; retry 4W ; expiry 1D ) ; minimum ;; Received 29 answers (29 records). ;; FROM: lookfar to SERVER: 127.0.0.1 ;; WHEN: Sat Dec 16 01:35:05 2000 |
good! °á°ú°¡ Á¸ ÆÄÀϰú ºñ½ÁÇÏ°Ô º¸ÀδÙ. wwwºÎºÐ¿¡ ´ëÇÑ Á¤º¸¸¦ È®ÀÎÇØº¸ÀÚ
$�ig www.linux.bogus +pfmin ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27345 ;; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 1 ;; QUERY SECTION: ;; www.linux.bogus, type = A, class = IN ;; ANSWER SECTION: www.linux.bogus. 3D IN CNAME ns.linux.bogus. ns.linux.bogus. 3D IN A 192.168.196.2 |
´Ù½Ã º¸¸é www.linux.bogusÀÇ ½ÇÁ¦ À̸§Àº ns.linux.bogusÀÌ´Ù. ±×¸®°í ns°¡ °¡Áø Á¤º¸µµ º¸¿©ÁÖ¸ç ÃæºÐÈ÷ ¿¬°áµÉ ¼ö ÀÖ´Ù.
ÀÌÁ¦ Àý¹Ý Çß´Ù.
ÇÁ·Î±×·¥µéÀº linux.bogusÀÇ À̸§À» Á¢¼Ó°¡´ÉÇÑ ÁÖ¼Ò·Î ¹Ù²ã¾ß Á¢¼ÓÀÌ °¡´ÉÇÏ´Ù. ±×·¯³ª ¿ªº¯È¯Á¸(reverse zone)ÀÌ ÀÖ¾î¾ß DNS°¡ ÁÖ¼Ò¸¦ À̸§À¸·Î ¹Ù²Ù´Â °ÍÀÌ °¡´ÉÇÏ´Ù. ÀÌ·¯ÇÑ À̸§Àº ´ç½ÅÀÌ ÀÌ ¼ºñ½º¸¦ »ç¿ëÇÒÁö ¸»Áö, ±×¸®°í »ç¿ëÇÑ´Ù¸é ¾ó¸¶¸¸ÅÀÇ ¿ì¼±¼øÀ§°¡ ÁÖ¾îÁö´ÂÁöµîÀ» °áÁ¤ÇÒ ´Ù¾çÇÑ Á¾·ùÀÇ ¼¹ö À̸§µé(FTP,IRC,WWW ±×¿Ü)¿¡¼ »ç¿ëµÈ´Ù. ÀÎÅͳݿ¡¼ ¸ðµç ¼ºñ½º¿¡ ´ëÇÑ ¿ÏÀüÇÑ Á¢¼ÓÀ» À§Çؼ´Â reverse zoneÀÌ ÇÊ¿äÇÏ´Ù.
named.conf¿¡ Ãß°¡ÇØ º¸ÀÚ
zone "196.168.192.in-addr.arpa" { notify no; type master; file "pz/192.168.196"; }; |
0.0.127.in-addr.arpa¿Í °°´Ù. ³»¿ëµµ À¯»çÇÏ´Ù.
$TTL 3D @ IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; Serial, todays date + todays serial 8H ; Refresh 2H ; Retry 4W ; Expire 1D) ; Minimum TTL NS ns.linux.bogus. 1 PTR gw.linux.bogus. 2 PTR ns.linux.bogus. 3 PTR donald.linux.bogus. 4 PTR mail.linux.bogus. 5 PTR ftp.linux.bogus. |
ÀÌÁ¦ named¸¦ À籸µ¿½Ã۰í(ndc restart) dig·Î ´Ù½Ã °Ë»çÇØ º¸ÀÚ
$ dig -x 192.168.196.4 +pfmin ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8764 ;; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1 ;; QUERY SECTION: ;; 4.196.168.192.in-addr.arpa, type = ANY, class = IN ;; ANSWER SECTION: 4.196.168.192.in-addr.arpa. 3D IN PTR mail.linux.bogus. |
±¦Âú¾Æ º¸ÀδÙ. ¸ðµç ºÎºÐÀ» °Ë»çÇØ º¸ÀÚ
dig -x 192.168.196 AXFR ; <<>> DiG 8.2 <<>> -x AXFR $ORIGIN 196.168.192.in-addr.arpa. @ 3D IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial 8H ; refresh 2H ; retry 4W ; expiry 1D ) ; minimum 3D IN NS ns.linux.bogus. 4 3D IN PTR mail.linux.bogus. 2 3D IN PTR ns.linux.bogus. 5 3D IN PTR ftp.linux.bogus. 3 3D IN PTR donald.linux.bogus. 1 3D IN PTR gw.linux.bogus. @ 3D IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial 8H ; refresh 2H ; retry 4W ; expiry 1D ) ; minimum ;; Received 8 answers (8 records). ;; FROM: lookfar to SERVER: 127.0.0.1 ;; WHEN: Sat Dec 16 01:44:03 2000 |
Àß µÈ´Ù! °á°ú°¡ À§¿Í °°Áö ¾ÊÀ¸¸é syslogÀÇ ¿¡·¯ ¸Þ½ÃÁö¸¦ ºÁ¶ó. ÀÌ¹Ì Ã¹ºÎºÐÀÇ Starting Named¿¡¼ ¼³¸íÇØ ³ù´Ù.
Ãß°¡ÇÒ ºÎºÐÀÌ ÀÖ´Ù. À§¿¡ ¸í½ÃµÈ IP ÁÖ¼ÒµéÀº ÀüºÎ '»ç¼³¸Á'¿¡ ±¹ÇÑµÈ ¿¹½ÃÀÌ´Ù. À̰ÍÀº ÀÏ¹Ý ÀÎÅͳݿ¡´Â Àû¿ëµÇÁö ¾Ê´Â´Ù. ±×·¡¼ ¾ÈÀüÇÏ°Ô ¿¹½Ã¸¦ ´Ù·ê ¼ö ÀÖ´Ù. µÎ¹øÂ° ºÎºÐÀº 'notify no;'¶ó´Â ºÎºÐÀÌ´Ù. named°¡ Á¸ÆÄÀÏÀÌ ¾÷µ¥ÀÌÆ® µÉ ¶§ ½½·¹À̺꼹ö¿¡ °øÁö°¡ µÇ¾î¼´Â ¾ÈµÈ´Ù´Â À̾߱âÀÌ´Ù. BIND-8 ¹öÁ¯ÀÇ named´Â zoneÆÄÀÏÀÌ ¾÷µ¥ÀÌÆ® µÉ ¶§ zone ÆÄÀÏ¿¡ ÀÖ´Â NS·¹Äڵ忡 µî·ÏµÇ ÀÖ´Â ´Ù¸¥ ¼¹öµé¿¡°Ô °øÁö¸¦ Çϱ⠶§¹®ÀÌ´Ù. À̰ÍÀº ÀϹÝÀûÀÎ À̿뿡´Â ÆíÇÒ °ÍÀÌÁö¸¸ °³ÀÎÀûÀÎ ¿¬½À¿¡¼´Â ÀÌ·¯ÇÑ ºÎºÐÀ» »ç¿ëÇÏÁö ¸»¾Æ¾ß ÇÒ °ÍÀÌ´Ù. ¿ì¸®°¡ ÀÌ·¯ÇÑ °ÍÀ¸·Î ÀÎÅͳÝÀ» ¾îÁö·´Èú ¼ö´Â ¾øÁö ¾Ê´Â°¡?
±×¸®°í À̰ÍÀº ¹°·Ð ¿ÏÀüÈ÷ Ç㱸ÀÌ´Ù. ½Ç·Ê¸¦ º¸·Á¸é ´ÙÀ½ ÀåÀ» ÂüÁ¶Ç϶ó
¿ªº¯È¯ Á¸ÀÌ ¼³Á¤µÇ¾úÀ» ¶§ °¡²û name lookup(À̸§°Ë»ç)ÀÌ µÇÁö ¾Ê¾Æ¼ '¾ÆÂ÷'ÇÏ´Â ¼ø°£µéÀÌ ÀÖ´Ù. ¼öÇàÀü¿¡ ´ç½ÅÀÇ nameserver¿¡ ´ëÇØ ¿ªº¯È¯ °Ë»ç (reverse lookups)¸¦ ÇÒ Çʿ䰡 ÀÖ´Ù. ÀÛµ¿ÇÏÁö ¾ÊÀ¸¸é ÀÌ ¼¼ÆÃÀ» ÁøÇàÇϱâ Àü¿¡ µÚ·Î °¡¼ °íÃÄ¾ß ÇÑ´Ù.
ÀϹÝÀûÀ¸·Î ¿ªº¯È¯ °Ë»ç°¡(reverse looksup) µÇÁö ¾Ê´Â 2°¡Áö ÀÌÀ¯¸¦ µé¾î º¸°Ú´Ù.
³×Æ®¿öÅ© ÁÖ¼Ò¿Í µµ¸ÞÀÎÀ» °ø±ÞÇÏ´Â ¾÷ü¿¡ ÀϹÝÀûÀ¸·Î µµ¸ÞÀÎ À̸§À» À§Å¹ÇÏ°Ô µÈ´Ù. ±×·¯¸é ¾÷ü´Â NS ·¹Äڵ忡 Ãß°¡ÇÏ°í ¾Õ¿¡¼ ¼³¸íÇÑ À̷дë·Î ³×ÀÓ¼¹ö¸¦ ã´Â´Ù. ÀоîºÃ°ÚÁö¸¸ Á¦´ë·Î ÀÛµ¿µÇÁö ¾ÊÀ¸¸é ´Ù½Ã µ¹¾Æ°¡¼ ÀоîºÁ¶ó.
¿ªº¯È¯ Á¸ ¿ª½Ã ¸Ã°ÜÁú °ÍÀε¥ ¸¸¾à 192.168.196´ëÀÇ ¸ÁÀ» ¾÷ü·ÎºÎÅÍ linux.bogus¶ó°í ¾ò¾ú´Ù¸é NS·¹Äڵ忡 Æ÷¿öµå Á¸Ã³·³ ¿ªº¯È¯Á¸À» Ãß°¡ÇÒ °ÍÀÌ´Ù. in-addr.arpa¸¦ µû¸£°í À̰ÍÀ¸·Î ¸ÁÀ» ±¸¼ºÇϸé ÀÌ ¾ÈÀÇ ¿À·ù¸¦ ã¾Æ¾ß ÇÒ °ÍÀÌ¸ç ´ëºÎºÐÀº ¾÷üÀÇ ¹®Á¦ÀÌ´Ù. ¾÷ü¿Í ¿¬¶ôÇØ¼ ¿¡·¯¸¦ ¼öÁ¤Ç϶ó.
Á»´õ ¹ßÀüµÈ Çü½ÄÀÌÁö¸¸ ¿ä»çÀÌ´Â ´ç½ÅÀÌ ¼Ò±Ô¸ð ¾÷üÀÌ¸é °¡Áö°í ÀÖÀ» ¹ýÇÑ ÀϹÝÀûÀÎ ±â¼úÀÌ µÇ¾ú´Ù.
classless ¼ºê³ÝÀº ¿ä»õ ÀÎÅͳÝÀÇ Ãß¼¼ÀÌ´Ù. ¾ó¸¶Àü¸¸Çصµ IP ºÎÁ·À¸·Î °í»ýÀÌ ¸¹¾Ò´Ù. IETF(Internet Engineering Task Force)ÀÇ ¶È¶ÈÇÑ À̵éÀÌ ¸Ó¸®¸¦ ¸Â´ë°í ¹®Á¦¸¦ ÇØ°áÇß´Ù. ±× °á°ú·Î C Ŭ·¡½ºº¸´Ù ÀÛÀº ¼ºê³ÝÀ» ¾ò°Ô µÇ¾ú´Âµ¥ ¿©±â¿¡ ¾à°£ÀÇ ¹®Á¦°¡ ÀÖ´Ù. Mr. DNSÀÇ »çÀÌÆ®¿¡ °¡¼ »ç¿ë¹ý°ú ÇØ°á¹ýµµ Âü°íÇ϶ó.
ÀоÁö ¾Ê¾Ò´Ù¸é È®ÀÎÇÏ±æ ¹Ù¶õ´Ù.
ù¹øÂ° ºÎºÐÀº ÀÎÅÍ³Ý °ø±Þ¾÷ü°¡ Mr.DNSÀÇ ±â¼úÀ» ÀνÄÇÏÁö ¸øÇÑ´Ù´Â ¹®Á¦ÀÌ´Ù. ¸ðµç ÀÎÅÍ³Ý ¾÷ü°¡ ´Ù ±×·¯´Â °ÍÀº ¾Æ´ÏÁö¸¸ ¸¸¾à ÀÌ·± °æ¿ì°¡ »ý±â¸é ´ç½ÅÀÌ ¿øÀÎÀ» ¼³¸íÇÏ°í º¸ÃæÇØ Áà¾ß ÇÑ´Ù. ¹°·Ð ´ç½ÅÀÌ ÀÌ ºÎºÐÀ» ¸ÕÀú ÀÌÇØÇϰí ÀÖ¾î¾ß ÇÑ´Ù. ±×·¯¸é ±×µéÀÌ ¿ªº¯È¯ Á¸À» ¼³Á¤Çϰí dig·Î È®ÀÎÇÒ °ÍÀÌ´Ù.
µÎ¹øÂ° ºÎºÐÀº ±â¼úÀ» ¸íÈ®ÇÏ°Ô ÀÌÇØÇÏÁö ¸øÇÑ´Ù´Â °ÍÀÌ´Ù. ¾ÕºÎºÐÀÌ È®½ÇÇÏÁö ¾Ê´Ù¸é ´Ù½Ã µ¹¾Æ°¡¼ È®ÀÎÇØº¸±æ. ±×µéÀº Dr.DNS¿¡¼ ³ª¿Â µ¥·Î Ŭ·¡½º ¾ø´Â ¿ªº¯È¯ Á¸À» »ý¼ºÇÒ °ÍÀÌ´Ù.
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zone "linux.bogus" { type slave; file "sz/linux.bogus"; masters { 192.168.196.2; }; }; |
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@ IN SOA ns.linux.bogus. hostmaster.linux.bogus. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds |
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