µµ¸ÞÀÎÀ» ¼³Á¤ÇÏ´Â °£´ÜÇÑ ¹æ¹ý
ÀÌ ÀýÀ» ½ÃÀÛÇϱâ Àü¿¡ DNS°¡ ¾î¶»°Ô µ¿ÀÛÇÏ´ÂÁö ¾à°£ÀÇ ÀÌ·ÐÀ» ¼³¸íÇϰڴÙ.
ÀÐ¾î µÎ¸é ¸¹Àº µµ¿òÀÌ µÇ±â ¶§¹®¿¡ °è¼Ó Àд °ÍÀÌ ÁÁ´Ù.
ÀÐ°í ½ÍÁö ¾Ê´õ¶óµµ ´ëÃæ ÈÈ¾î º¸±â´Â ÇØ¾ß ÇÑ´Ù.
¾î°µç named.conf¿¡ °üÇÑ ³»¿ëºÎÅÍ´Â ÀÚ¼¼È÷ ÀÐ¾î¼ ¿ÏÀüÈ÷ ÀÌÇØÇØ¾ß ÇÑ´Ù.
DNS´Â °èÃþÀûÀÎ ½Ã½ºÅÛÀÌ´Ù. ÃÖ»óÀ§ °èÃþÀº `.'À¸·Î Àû°í `·çÆ®'·Î ¹ßÀ½ÇÑ´Ù.
`.' ¾Æ·¡·Î ORG, COM, EDU, NET °°Àº ÃÖ»óÀ§ µµ¸ÞÀÎ(TLDs: Top Level
Domains)ÀÌ ÀÖ´Ù.
¾î¶² ÄÄÇ»Å͸¦ ãÀ» ¶§,  Äõ¸®´Â ÃÖ»óÀ§ °èÃþ¿¡¼ºÎÅÍ ½ÃÀÛÇÏ¿© ÇÏÀ§ °èÃþÀ¸·Î
ã¾Æ ³»·Á °£´Ù. prep.ai.mit.edu¸¦ ã´Â °æ¿ì »ç¿ëÀÚÀÇ ³×ÀÓ ¼¹ö´Â
edu µµ¸ÞÀÎÀ» ´ã´çÇÏ´Â ³×ÀÓ ¼¹ö¸¦ ã¾Æ¾ß ÇÑ´Ù. ±×·¡¼ . ¼¹ö¿¡¼ ÁúÀÇÇϰÔ
µÇ°í ±×·¯¸é . ¼¹ö´Â edu µµ¸ÞÀÎ ´ã´ç ¼¹öµéÀÇ ¸ñ·ÏÀ» ³Ñ°Ü ÁØ´Ù. (À̹Ì
. ¼¹ö¿¡ ´ëÇØ¼´Â »ç¿ëÀÚÀÇ ³×ÀÓ ¼¹ö°¡ ¾Ë°í ÀÖ´Ù. ¿Ö³ÄÇϸé,
root.hints ÆÄÀÏ¿¡¼ ¸í½ÃÇØ ÁÖ¾ú±â ¶§¹®ÀÌ´Ù.)
$ nslookup
Default Server:  localhost
Address:  127.0.0.1
·çÆ® ¼¹ö¿¡ ÁúÀÇ ½ÃÀÛ
> server c.root-servers.net.
Default Server:  c.root-servers.net
Address:  192.33.4.12
Äõ¸® À¯ÇüÀ» NS·Î ¼³Á¤ (name server records):
> set q=ns
edu¿¡ °üÇØ ÁúÀÇ
> edu.
¿©±â¿¡¼ ¸¶Áö¸· ÄÀÇ .ÀÌ Áß¿äÇѵ¥, . ¾Æ·¡¿¡ ÀÖ´Â edu µµ¸ÞÀο¡ ´ëÇØ ÁúÀÇÇϰí ÀÖÀ½À» ¶æÇÑ´Ù. (ÀÌ·¸°Ô ÇÔÀ¸·Î½á °Ë»ö ¹üÀ§¸¦ Ãà¼ÒÇÑ´Ù.)
edu     nameserver = A.ROOT-SERVERS.NET
edu     nameserver = H.ROOT-SERVERS.NET
edu     nameserver = B.ROOT-SERVERS.NET
edu     nameserver = C.ROOT-SERVERS.NET
edu     nameserver = D.ROOT-SERVERS.NET
edu     nameserver = E.ROOT-SERVERS.NET
edu     nameserver = I.ROOT-SERVERS.NET
edu     nameserver = F.ROOT-SERVERS.NET
edu     nameserver = G.ROOT-SERVERS.NET
A.ROOT-SERVERS.NET      internet address = 198.41.0.4
H.ROOT-SERVERS.NET      internet address = 128.63.2.53
B.ROOT-SERVERS.NET      internet address = 128.9.0.107
C.ROOT-SERVERS.NET      internet address = 192.33.4.12
D.ROOT-SERVERS.NET      internet address = 128.8.10.90
E.ROOT-SERVERS.NET      internet address = 192.203.230.10
I.ROOT-SERVERS.NET      internet address = 192.36.148.17
F.ROOT-SERVERS.NET      internet address = 192.5.5.241
G.ROOT-SERVERS.NET      internet address = 192.112.36.4
À§ÀÇ °á°ú·Î *.root-servers.netÀÌ edu. ´ã´ç ¼¹öÀÓÀ»
¾Ë ¼ö ÀÖ´Ù. ÀÌÁ¦ °è¼ÓÇØ¼ c ¼¹ö¿¡°Ô ÁúÀÇÇÒ ¼ö ÀÖ´Ù.
À̹ø¿¡´Â ¾î´À ¼¹ö°¡ mit.edu. µµ¸ÞÀÎÀ» ´ã´çÇÏ´ÂÁö
¾Ë¾Æ º¸ÀÚ. °è¼ÓÇØ¼ ¾Æ·¡¿Í °°ÀÌ mit.edu.À» ÀÔ·ÂÇÑ´Ù.
> mit.edu.
Server:  c.root-servers.net
Address:  192.33.4.12
Non-authoritative answer:
mit.edu nameserver = W20NS.mit.edu
mit.edu nameserver = BITSY.mit.edu
mit.edu nameserver = STRAWB.mit.edu
Authoritative answers can be found from:
W20NS.mit.edu   internet address = 18.70.0.160
BITSY.mit.edu   internet address = 18.72.0.3
STRAWB.mit.edu  internet address = 18.71.0.151
steawb, w20ns¿Í bitsy ¼¹ö°¡ mit¸¦ ´ã´çÇÑ´Ù.
±× Áß Çϳª¸¦ ¼±ÅÃÇÏ¿© ai.mit.edu¿¡ ´ëÇØ ÁúÀÇÇØ º¸ÀÚ.
> server W20NS.mit.edu.
È£½ºÆ®¸íÀº ´ë¼Ò¹®ÀÚ¸¦ ±¸º°ÇÏÁö´Â ¾Ê´Â´Ù. ´Ù¸¸ ¸¶¿ì½º·Î ȸéÀ» ±Ü¾î ºÙ¿©¼ ÀÌ·¸°Ô º¸ÀδÙ.
Server:  W20NS.mit.edu
Address:  18.70.0.160
> ai.mit.edu.
Server:  W20NS.mit.edu
Address:  18.70.0.160
Non-authoritative answer:
ai.mit.edu      nameserver = ALPHA-BITS.AI.MIT.EDU
ai.mit.edu      nameserver = GRAPE-NUTS.AI.MIT.EDU
ai.mit.edu      nameserver = TRIX.AI.MIT.EDU
ai.mit.edu      nameserver = MUESLI.AI.MIT.EDU
ai.mit.edu      nameserver = LIFE.AI.MIT.EDU
ai.mit.edu      nameserver = BEET-CHEX.AI.MIT.EDU
ai.mit.edu      nameserver = MINI-WHEATS.AI.MIT.EDU
ai.mit.edu      nameserver = COUNT-CHOCULA.AI.MIT.EDU
ai.mit.edu      nameserver = MINTAKA.LCS.MIT.EDU
Authoritative answers can be found from:
AI.MIT.EDU      nameserver = ALPHA-BITS.AI.MIT.EDU
AI.MIT.EDU      nameserver = GRAPE-NUTS.AI.MIT.EDU
AI.MIT.EDU      nameserver = TRIX.AI.MIT.EDU
AI.MIT.EDU      nameserver = MUESLI.AI.MIT.EDU
AI.MIT.EDU      nameserver = LIFE.AI.MIT.EDU
AI.MIT.EDU      nameserver = BEET-CHEX.AI.MIT.EDU
AI.MIT.EDU      nameserver = MINI-WHEATS.AI.MIT.EDU
AI.MIT.EDU      nameserver = COUNT-CHOCULA.AI.MIT.EDU
AI.MIT.EDU      nameserver = MINTAKA.LCS.MIT.EDU
ALPHA-BITS.AI.MIT.EDU   internet address = 128.52.32.5
GRAPE-NUTS.AI.MIT.EDU   internet address = 128.52.36.4
TRIX.AI.MIT.EDU internet address = 128.52.37.6
MUESLI.AI.MIT.EDU       internet address = 128.52.39.7
LIFE.AI.MIT.EDU internet address = 128.52.32.80
BEET-CHEX.AI.MIT.EDU    internet address = 128.52.32.22
MINI-WHEATS.AI.MIT.EDU  internet address = 128.52.54.11
COUNT-CHOCULA.AI.MIT.EDU        internet address = 128.52.38.22
MINTAKA.LCS.MIT.EDU     internet address = 18.26.0.36
À§ÀÇ °á°ú¿¡¼ museli.ai.mit.edu°¡ ai.mit.edu ´ã´ç
³×ÀÓ ¼¹ö Áß ÇϳªÀÓÀ» ¾Ë ¼ö ÀÖ´Ù. ¸¶Áö¸·À¸·Î ¾Æ·¡¿Í °°ÀÌ
ÁúÀÇÇØ º¸ÀÚ.
> server MUESLI.AI.MIT.EDU
Default Server:  MUESLI.AI.MIT.EDU
Address:  128.52.39.7
³×ÀÓ ¼¹ö¸¦ ã¾ÒÀ¸¹Ç·Î ÀÌÁ¦ Äõ¸® À¯ÇüÀ» ¹Ù²ã¼ prep.ai.mit.edu¿¡ °üÇÑ
¸ðµç »çÇ×À» ÁúÀÇÇØ º¸ÀÚ.
> set q=any
> prep.ai.mit.edu.
Server:  MUESLI.AI.MIT.EDU
Address:  128.52.39.7
prep.ai.mit.edu CPU = dec/decstation-5000.25    OS = unix
prep.ai.mit.edu
        inet address = 18.159.0.42, protocol = tcp
          ftp  telnet  smtp  finger
prep.ai.mit.edu preference = 1, mail exchanger = gnu-life.ai.mit.edu
prep.ai.mit.edu internet address = 18.159.0.42
ai.mit.edu      nameserver = beet-chex.ai.mit.edu
ai.mit.edu      nameserver = alpha-bits.ai.mit.edu
ai.mit.edu      nameserver = mini-wheats.ai.mit.edu
ai.mit.edu      nameserver = trix.ai.mit.edu
ai.mit.edu      nameserver = muesli.ai.mit.edu
ai.mit.edu      nameserver = count-chocula.ai.mit.edu
ai.mit.edu      nameserver = mintaka.lcs.mit.edu
ai.mit.edu      nameserver = life.ai.mit.edu
gnu-life.ai.mit.edu     internet address = 128.52.32.60
beet-chex.ai.mit.edu    internet address = 128.52.32.22
alpha-bits.ai.mit.edu   internet address = 128.52.32.5
mini-wheats.ai.mit.edu  internet address = 128.52.54.11
trix.ai.mit.edu internet address = 128.52.37.6
muesli.ai.mit.edu       internet address = 128.52.39.7
count-chocula.ai.mit.edu        internet address = 128.52.38.22
mintaka.lcs.mit.edu     internet address = 18.26.0.36
life.ai.mit.edu internet address = 128.52.32.80
ÀÌ·¸°Ô ÇØ¼ .·ÎºÎÅÍ ½ÃÀÛÇØ¼ µµ¸ÞÀÎ ³×ÀÓÀ» ´ã´çÇÏ´Â Àü´Ü°èÀÇ ³×ÀÓ
¼¹öµéÀ» ¼º°øÀûÀ¸·Î ã¾Ò´Ù. ´Ù¸¥ ¼¹ö¸¦ »ç¿ëÇÏÁö ¾Ê°í ¿©·¯ºÐÀÇ DNS
¼¹ö¸¦ »ç¿ëÇß´Ù¸é ¿©·¯ºÐÀÇ named´Â ´ç¿¬È÷ ±× ¸ðµç Á¤º¸µéÀ» º¸°üÇØ µÎ¾úÀ»
°ÍÀÌ´Ù.  ±×¸®°í ´çºÐ°£Àº °°Àº ÁúÀǸ¦ ÇÏÁö ¾ÊÀ» °ÍÀÌ´Ù.
¸¹ÀÌ °Å·ÐµÇÁö´Â ¾ÊÁö¸¸ Áß¿äÇÑ µµ¸ÞÀÎÀÌ in-addr.arpa ÀÌ´Ù.
ÀÌ µµ¸ÞÀÎ ¿ª½Ã Á¤»ó µµ¸ÞÀÎÀ» ±¸¼ºÇÑ´Ù. 
in-addr.arpa´Â È£½ºÆ®ÀÇ ÁÖ¼Ò¸¦ ¾Ë°í ÀÖÀ» ¶§ ±× À̸§À»
¾Ë·ÁÁØ´Ù. ¿©±â¼ ÁÖÀÇÇØ¾ß ÇÒ Á¡Àº in-addr.arpa µµ¸ÞÀο¡¼´Â
ip ¼ýÀÚµéÀÌ ¿ª¼øÀ¸·Î »ç¿ëÇÑ´Ù´Â °ÍÀÌ´Ù. 192.128.52.43 ÄÄÇ»ÅÍÀÇ ÁÖ¼Ò¸¦
¾Ë°í ÀÖ´Â °æ¿ì, prep.ai.mit.eduÀÇ ¿¹Ã³·³ 'named'´Â arpa. ¼¹ö¸¦
ã´Â´Ù. ±× ´ÙÀ½À¸·Î in-addr.arpa. ¼¹ö¸¦ ã°í,
192.in-addr.arpa. ¼¹ö¸¦ ãÀº ´ÙÀ½,
128.192.in-addr.arpa. ¼¹ö¸¦ ã¾Æ¼ 52.128.192.in-addr.arpa. ¼¹ö¸¦
ã´Â´Ù. ±×¸®°í´Â 43.52.128.192.in-addr.arpa.¿¡ ÇØ´çÇÏ´Â Ç׸ñÀ» ã´Â´Ù.
¶È¶ÈÇÏÁÒ?(±×·¸´Ù°í ¸»Çϱæ... ) ¼ýÀÚ¸¦ ¿ª¼øÀ¸·Î »ç¿ëÇÏ´Â °ÍÀº
óÀ½ 2³â Á¤µµ´Â È¥¶õ½º·¯¿ï ¼ö ÀÖ´Ù.
»ç½Ç ÇÊÀÚ´Â Áö±Ý±îÁö °ÅÁþ¸»À» Çß´Ù. DNS´Â ÀúÀÚ°¡ À̾߱âÇÑ ±ÛÀÚ ±×´ë·Î ÀÛµ¿ÇÏÁö´Â ¾Ê´Â´Ù. ±×·¸Áö¸¸ ±× ÀÇ¹Ì´Â ÃæºÐÇÏ´Ù.
ÀÌÁ¦´Â °£´ÜÇÏ°Ô¶óµµ Çѹø µµ¸ÞÀÎÀ» ¼³Á¤ÇØ º¸ÀÚ. linux.bogus¶ó´Â µµ¸ÞÀÎÀ» Á¤ÇÏ°í ±×±â¿¡ ¼ÓÇÑ ÄÄÇ»Å͵éÀÇ À̸§À» Á¤ÀÇÇÒ °ÍÀÌ´Ù. ¾î´À ´©±¸µµ È¥µ¿ÇÏÁö ¾Êµµ·Ï ½ÇÁ¦·Î´Â Á¸ÀçÇÏÁöµµ ¾Ê´Â µµ¸ÞÀÎÀ» »ç¿ëÇÒ °ÍÀÌ´Ù.
½ÃÀÛÇϱâ Àü¿¡ Çϳª ´õ: ¸ðµç ¹®ÀÚ¸¦ È£½ºÆ®¸íÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖ´Â °ÍÀº ¾Æ´Ï´Ù. ¿µ¹®ÀÚ: a-z, ¼ýÀÚ: 0-9, ±×¸®°í '-' (dash) ¹®ÀÚ¸¸ »ç¿ëÇÒ ¼ö ÀÖ´Ù. ÀÌ ¹®ÀÚµéÀ» ¸í½ÉÇ϶ó. ´ë¹®ÀÚ³ª ¼Ò¹®ÀÚ³ª DNS¿¡°Ô´Â ¸¶Âù°¡Áö´Ù. ±×·¡¼ pat.uio.noÀº Pat.UiO.No¿Í µ¿ÀÏÇÏ´Ù.
named.conf¿¡¼ ¾Æ·¡ ºÎºÐ ¼³Á¤¿¡ ´ëÇÑ °ÍÀº ÀÌ¹Ì ¼³¸íÇß´Ù.
zone "0.0.127.in-addr.arpa" {
        type master;
        file "pz/127.0.0";
};
ÀÌ ÆÄÀÏ¿¡¼ µµ¸ÞÀÎ ³×ÀÓÀÇ ¸¶Áö¸·¿¡ `.'ÀÌ ¾øÀ½¿¡ À¯ÀÇÇÏÀÚ. 
À§ÀÇ ¼³Á¤ Áß Ã¹¹øÂ° ¶óÀÎÀº 0.0.127.in-addr.arpa Á¸(zone)¿¡ ´ëÇÑ
Á¤ÀÇÀÓÀ» ¶æÇϰí, µÎ¹øÂ° ¶óÀÎÀÎ ÀÌ ¼¹ö°¡ 0.0.127.in-addr.arpa Á¸ÀÇ
¸¶½ºÅÍ ¼¹öÀÓÀ» ¶æÇϸç, ¸¶Áö¸· ¶óÀÎÀº È£½ºÆ®¸í°ú IP ÁÖ¼Ò »çÀÌÀÇ ¸ÅÇÎ Á¤º¸°¡
ps/127.0.0 ÆÄÀÏ¿¡ ÀúÀåµÇ¾î ÀÖÀ½À» ¶æÇÑ´Ù. 
ps/127.0.0 ÆÄÀÏ¿¡ ´ëÇØ¼´Â ÀÌ¹Ì ¼³¸íÇÏ¿´´Ù. ³»¿ëÀº ´ÙÀ½°ú
°°´Ù.
@               IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
                                1       ; Serial
                                8H      ; Refresh
                                2H      ; Retry
                                1W      ; Expire
                                1D)     ; Minimum TTL
                        NS      ns.linux.bogus.
1                       PTR     localhost.
À§ÀÇ named.conf ÆÄÀϰú´Â ´ëÁ¶ÀûÀ¸·Î ÀÌ ÆÄÀÏ¿¡¼´Â
¿ÏÀüÇÑ µµ¸ÞÀθí(full domain name)ÀÇ ³¡¿¡´Â ¸ðµÎ `.'ÀÌ ÀÖÀ½¿¡ À¯ÀÇÇÏÀÚ.
Some people
like to start each zone file with a $ORIGIN directive, but
this is superfluous. The origin (where in the DNS hierarchy it
belongs) of a zone file is specified on the zone section of the
named.conf file, in this case it's 0.0.127.in-addr.arpa.
ÀÌ `Á¸(zone) ÆÄÀÏ'¿¡´Â `resource records' (RRs)°¡ 3°³ ÀÖ´Ù. SOA, NS, ±×¸®°í PTRÀÌ´Ù. SOA´Â `Start Of Authority'ÀÇ Ãà¾à¾îÀÌ´Ù. `@'Àº originÀ» ¶æÇϴ Ư¼ö¹®ÀÚÀÌ´Ù. ÀÌ ÆÄÀÏ¿¡ ´ëÇÑ `µµ¸ÞÀÎ' Ç׸ñÀÌ 0.0.127.in-addr.arpa À̹ǷΠùÁÙÀÇ Àǹ̴ ´ÙÀ½°ú °°´Ù.
0.0.127.in-addr.arpa.   IN      SOA ...
NS´Â ³×ÀÓ ¼¹ö RRÀÌ´Ù. ÀÌ ÁÙ¿¡´Â óÀ½¿¡ '@' ¹®ÀÚ°¡ ¾ø´Ù. ¹Ù·Î À§¿¡¼ '@' ¹®ÀÚ·Î ½ÃÀÛÇÑ ÁÙÀÌ ÀÖÀ¸¹Ç·Î À̸¦ ¾Ï¹¬ÀûÀ¸·Î µû¸¥´Ù. Ÿ¼öµµ ÁÙÀϰâ.. ±×·¯¹Ç·Î NS ÁÙÀº ´ÙÀ½°ú °°´Ù.
0.0.127.in-addr.arpa.   IN      NS      ns.linux.bogus
0.0.127.in-addr.arpa µµ¸ÞÀÎÀÇ ³×ÀÓ ¼¹ö°¡ ns.linux.bogusÀÓÀ»
´Ù¸¥ DNSµé¿¡°Ô ¾Ë·Á ÁØ´Ù. 'ns'°¡ ³×ÀÓ ¼¹öÀÇ À̸§À¸·Î °ü·Êó·³ ¾²ÀδÙ.
±×·¯³ª À¥¼¹öÀÇ À̸§ÀÌ °ü·ÊÀûÀ¸·Î www.somethingÀÌµí ´Ù¸¥ À̸§À» »ç¿ëÇÏ´Â
°Íµµ ¹«¹æÇÏ´Ù.
¸¶Áö¸·À¸·Î PTR Ç׸ñÀº 0.0.127.in-addr.arpa ¼ºê³Ý¿¡¼ ÁÖ¼Ò°¡ 1ÀÎ
È£½ºÆ®, Áï 127.0.0,1ÀÇ À̸§ÀÌ localhostÀÓÀ» ¶æÇÑ´Ù.
SOA Ç׸ñÀº Á¸ ÆÄÀÏÀÇ ¸Ó¸®¸»·Î °¢ Á¸ ÆÄÀϸ¶´Ù ²À Çϳª¾¿, ùÁÙ¿¡ ¹Ýµå½Ã
ÀÖ¾î¾ß¸¸ ÇÑ´Ù. ÀÌ Ç׸ñÀº ÇöÀç ¼³Á¤Çϰí ÀÖ´Â Primary ³×ÀÓ ¼¹öÀÇ À̸§Àº
¹«¾ùÀÎÁö (ns.linux.bogus), °ü¸®ÀÚ´Â ´©±¸ÀÎÁö,
(hostmaster@linux.bogus), Á¸ ÆÄÀÏÀº ¹öÀüÀÌ ¾î¶»°Ô µÇ´ÂÁö (serial: 1),
ij½Ã ¼³Á¤°ú secondary DNS ¼¹ö¿¡ °üÇÑ ³»¿ëÀ» ¼³Á¤ÇÑ´Ù.
³²Àº Ç׸ñµéÀº refresh, retry, expire, ±×¸®°í minimumÀε¥, ÀÌ ¹®¼¿Í µ¿ÀÏÇÑ
°ªÀ¸·Î ¼³Á¤Çϸé, Å©°Ô ½Å°æ¾²Áö ¾Ê¾Æµµ Àß ÀÛµ¿ÇÒ °ÍÀÌ´Ù.
ÀÌÁ¦ ndc restart ¸í·ÉÀ¸·Î named¸¦ Àç½ÃÀÛÇϰí nslookupÀ¸·Î
Áö±Ý±îÁö ¼³Á¤ÇÑ °ÍÀ» ½ÃÇèÇØ º¸ÀÚ.
$ nslookup
Default Server:  localhost
Address:  127.0.0.1
> 127.0.0.1
Server:  localhost
Address:  127.0.0.1
Name:    localhost
Address:  127.0.0.1
À§¿¡¼ IP 127.0.0.1¿¡ ¸ÅÇÎµÈ È£½ºÆ®¸í localhost¸¦ ã´Âµ¥ ¼º°øÇß´Ù.
±Â  ÀÌÁ¦ named.conf¿¡ Á¸(zone)À» »õ·Î Ãß°¡ÇÏ¿© ¿ì¸®ÀÇ ÁÖ¸ñÀûÀÎ linux.bogus
µµ¸ÞÀÎÀ» ¼³Á¤ÇØ º¸ÀÚ.
zone "linux.bogus" {
        notify no;
        type master;
        file "pz/linux.bogus";
};
named.conf ÆÄÀÏ¿¡¼ µµ¸ÞÀÎ ³×ÀÓ ¸¶Áö¸·¿¡ `.'ÀÌ ¾ø´Ù´Â °Í¿¡
ÁÖÀÇÇϵµ·Ï ÇÑ´Ù.
linux.bogus Á¸ ÆÄÀÏ¿¡ 100% °¡»ó µ¥ÀÌŸ¸¦ »ðÀÔÇÒ °ÍÀÌ´Ù.
;
; Zone file for linux.bogus
;
; The full zone file
;
@       IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
                        199802151       ; serial, todays date + todays serial #
                        8H              ; refresh, seconds
                        2H              ; retry, seconds
                        1W              ; 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 Ç׸ñ¿¡¼ 2°¡Áö¸¦ ÁÖÀÇÇØ¾ß ÇÑ´Ù. ns.linux.bogus´Â A ·¹Äڵ尡 ÀÖ´Â ½ÇÁ¦ ÄÄÇ»ÅÍÀ̾î¾ß ÇÑ´Ù. SOA ·¹Äڵ忡¼ ¾ð±ÞµÈ ÄÄÇ»Å͸¦ ´Ù¸¥ ÄÄÇ»ÅÍ·Î ¾Ë¸®¾Æ½ÌÇÏ´Â CNAME ·¹Äڵ尡 ÀÖÀ¸¸é ±ÔÄ¢¿¡ ¾î±ß³´Ù. À̸§ÀÌ `ns'ÀÏ ÇÊ¿ä´Â ¾øÀ¸¸ç ´Ù¸¥ È£½ºÆ®¸íÀ» »ç¿ëÇØµµ ¹«¹æÇÏ´Ù. ´ÙÀ½À¸·Î, hostmaster.linux.bogus´Â hostmaster@linux.bogus·Î ÀÐÀ¸¸é µÈ´Ù. DNS °ü¸®ÀÚÀÇ ¸ÞÀÏ ¾Ë¸®¾Æ½º³ª ¸ÞÀϹڽº¸¦ ¼³Á¤ÇÏ´Â °÷ÀÌ´Ù. µµ¸ÞÀÎ °ü·Ã ¸ÞÀÏÀº ¸ðµÎ ÀÌ ÁÖ¼Ò·Î ¹è´ÞµÈ´Ù. À̸§ÀÌ `hostmaster'ÀÏ ÇÊ¿ä´Â ¾ø´Ù. ÀüÀÚ¿ìÆí ÁÖ¼Ò¶ó¸é ¾î¶² °ÍÀ» »ç¿ëÇØµµ »ó°ü¾øÁö¸¸, `hostmaster'¸¦ »ç¿ëÇÏ´Â °Íµµ ³ª»ÚÁö ¾Ê´Ù.
ÀÌ ÆÄÀÏ¿¡´Â MX(Mail eXchanger)¶ó´Â »õ·Î¿î RR À¯ÇüÀÌ ÀÖ´Ù.
someone@linux.bogusÀÇ ÁÖ¼Ò·Î µé¾î¿À´Â ¸ÞÀÏÀ» ó¸®ÇÒ ¸ÞÀÏ ½Ã½ºÅÛÀ» ÁöÁ¤ÇÑ´Ù.
À§ÀÇ ¿¹¿¡¼ someone@linux.bogus ÁÖ¼Ò·Î ¼ö½ÅµÇ´Â ¸ÞÀÏÀº
mail.linux.bogus ¶Ç´Â mail.friend.bogus·Î º¸³½´Ù. È£½ºÆ®¸í ¹Ù·Î ¾Õ¿¡
ÀÖ´Â ¼ýÀÚ´Â MX Ç׸ñÀÇ ¿ì¼± ¼øÀ§À» ¶æÇÑ´Ù. ¸ÞÀÏÀº ÀÌ ¼ýÀÚ°¡ °¡Àå ³·Àº(¿©±â¼´Â
10) RR¿¡ ¸ÞÀÏÀ» º¸³½´Ù. ¿©±â¼ ½ÇÆÐÇÏ¸é ¼ýÀÚ°¡ ±× ´ÙÀ½À¸·Î ³·Àº
µÎ¹øÂ° ¸ÞÀÏ ¼¹ö Áï, ¿ì¼± ¼øÀ§°¡ 20ÀÏ mail.friend.bogusÀ¸·Î º¸³¾ °ÍÀÌ´Ù.
ndc restart·Î 'named'¸¦ Àç½ÃÀÛÇÑ ´ÙÀ½ nslookupÀ¸·Î °á°ú¸¦ È®ÀÎÇÏÀÚ.
$ nslookup
> set q=any
> linux.bogus
Server:  localhost
Address:  127.0.0.1
linux.bogus
        origin = ns.linux.bogus
        mail addr = hostmaster.linux.bogus
        serial = 199802151
        refresh = 28800 (8 hours)
        retry   = 7200 (2 hours)
        expire  = 604800 (7 days)
        minimum ttl = 86400 (1 day)
linux.bogus     nameserver = ns.linux.bogus
linux.bogus     preference = 10, mail exchanger = mail.linux.bogus.linux.bogus
linux.bogus     preference = 20, mail exchanger = mail.friend.bogus
linux.bogus     nameserver = ns.linux.bogus
ns.linux.bogus  internet address = 192.168.196.2
mail.linux.bogus        internet address = 192.168.196.4
À§ °á°ú¸¦ Àß »ìÆìº¸¸é ¹ö±×¸¦ ãÀ» ¼ö ÀÖÀ» °ÍÀÌ´Ù.
linux.bogus     preference = 10, mail exchanger = mail.linux.bogus.linux.bogus
À§ ¶óÀÎÀº Ʋ·È´Ù. ´ÙÀ½°ú °°ÀÌ Ãâ·ÂµÇ¾î¾ß Á¤»óÀÌ´Ù.
linux.bogus     preference = 10, mail exchanger = mail.linux.bogus
¿©·¯ºÐÀÌ Á» ´õ Àß ÀÌÇØÇÒ ¼ö ÀÖµµ·Ï ÀÌ ºÎºÐ¿¡ ½Ç¼ö¸¦ ÀϺη¯ ³Ö¾î µÎ¾ú´Ù. ;-) Á¸ ÆÄÀÏ¿¡¼ ´ÙÀ½ ¶óÀÎÀ» ãµµ·Ï ÇÏÀÚ.
                MX      10 mail.linux.bogus     ; Primary Mail Exchanger
¸¶Áö¸·¿¡ Á¡ÀÌ ºüÁ³´Ù. °íÄ¡Áö ¾ÊÀ¸¸é `linux.bogus'°¡ ºÙ¾î ³ª¿À°Ô µÈ´Ù. Á¸
ÆÄÀÏ¿¡¼ È£½ºÆ®¸íÀÌ Á¡À¸·Î ³¡³ªÁö ¾ÊÀ¸¸é linux.bogus.linux.bogusó·³
originÀÌ Ã·ºÎµÈ´Ù. ±×·¯¹Ç·Î
                MX      10 mail.linux.bogus.    ; Primary Mail Exchanger
¶Ç´Â
                MX      10 mail                 ; Primary Mail Exchanger
·Î ¼³Á¤ÇÏ´Â °ÍÀÌ ¿Ã¹Ù¸£´Ù. ÀúÀڴ ŸÀÌÇÎ ¼ö°¡ ÀûÀº ÈÄÀÚ¸¦ ´õ ÁÁ¾ÆÇÑ´Ù.
bind¸¦ Àß ¾Æ´Â »ç¿ëÀÚµé Áß¿¡´Â ¿©±â¿¡ µ¿ÀÇÇÏÁö ¾Ê´Â »ç¶÷µµ ÀÖ°í,
µ¿ÀÇÇÏ´Â »ç¶÷µµ ÀÖ´Ù.
Áö¿ª ÆÄÀÏ¿¡¼ µµ¸ÞÀÎÀº `.'À¸·Î ³¡³ª°Ô ¿ÏÀüÈ÷ Àû°Å³ª ¾Æ´Ï¸é
µðÆúÆ®ÀÎ origin¿¡ ÇØ´çÇÏ´Â ºÎºÐÀ» Æ÷ÇÔÇÏÁö ¸»¾Æ¾ß ÇÑ´Ù.
°Á¶Çϰǵ¥ named.conf ÆÄÀÏ¿¡¼´Â µµ¸ÞÀÎ ³×ÀÓÀÇ ³¡¿¡ `.'ÀÌ
¾ø¾î¾ß ÇÑ´Ù.
`.'ÀÌ ÀÖ°í ¾øÀ½ÀÌ ¾ó¸¶³ª ÀÏÀ» ²¿ÀÌ°Ô ¸¸µé°í »ç¶÷µéÀ» È¥¶õ½º·´°Ô
¸¸µå´ÂÁö »ó»óµµ ¸øÇÒ °ÍÀÌ´Ù.
¿©±â ÀúÀÚÀÇ °ßÇØ°¡ ¹Ý¿µµÈ »õ·Î¿î Á¸ ÆÄÀÏÀÌ ÀÖ´Ù. ÀÚ·á°¡ ¾à°£ ´õÇØÁ³´Ù.
;
; Zone file for linux.bogus
;
; The full zone file
;
@       IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
                        199802151       ; serial, todays date + todays serial #
                        8H              ; refresh, seconds
                        2H              ; retry, seconds
                        1W              ; 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"
À§¿¡ »õ·Î¿î RRÀÌ ²Ï ¸¹ÀÌ ÀÖ´Ù. HINFO(Host INFOrmation)Àº µÎ ºÎºÐÀ¸·Î À̷ξîÁ® Àִµ¥ °¢°¢À» Å«µû¿ÈÇ¥·Î µÑ·¯ ½Î´Â °ÍÀÌ ÁÁ´Ù. ¾ÕºÎºÐÀº ÄÄÇ»ÅÍ Çϵå¿þ¾î ¶Ç´Â CPU Á¤º¸ÀÌ´Ù. µÎ¹øÂ° ºÎºÐÀº ¼ÒÇÁÆ®¿þ¾î ¶Ç´Â OS Á¤º¸ÀÌ´Ù. `ns' ÄÄÇ»ÅÍ´Â Pentium CPU¿¡ Linux 2.0À» »ç¿ëÇÑ´Ù. CNAME(Canonical NAME)Àº ÄÄÇ»ÅÍ Çϳª¿¡ À̸§À» ¿©·¯ °³ ºÎ¿©ÇÏ´Â ¹æ¹ýÀÌ´Ù. ±×·¯¹Ç·Î wwwÀº ns¿¡ ´ëÇÑ ¾Ë¸®¾Æ½ºÀÌ´Ù.
CNAME ·¹ÄÚµåÀÇ ¿ë¹ýÀº ¾à°£ ³íÀïÀÇ ¿©Áö°¡ ÀÖ´Ù. ±×·¯³ª ´ÙÀ½ ±ÔÄ¢À» µû¸£¸é ¾ÈÀüÇÏ´Ù. MX, CNAME, SOA Ç׸ñÀº CNAME ·¹ÄÚµå¿Í´Â Àý´ë·Î ¿¬°áÇÏÁö ¸»¾Æ¾ß Çϰí, A Ç׸ñÀÌ ÀÖ´Â °¡Áø ´Ù¸¥°Í°ú ¿¬°áÇÏ¿©¾ß ÇÑ´Ù. Áï, ´ÙÀ½Àº À߸ø ¼³Á¤ÇÑ °ÍÀÌ´Ù.
foobar CNAME www ; NO!
¾Æ·¡¿Í °°ÀÌ ¼³Á¤ÇÏ´Â °ÍÀÌ ¿Ã¹Ù¸£´Ù.
foobar CNAME ns ; Yes!
¶ÇÇÑ CNAMEÀº ÀüÀÚ¿ìÆí ÁÖ¼Ò·Î ¹Ù¶÷Á÷ÇÑ È£½ºÆ®¸íÀÌ ¾Æ´Ï¶ó°í °¡Á¤ÇÏ´Â °ÍÀÌ
¾ÈÀüÇÏ´Ù. Áï, webmaster@www.linux.bogus´Â ±ÔÁ¤¿¡ ¾î±ß³ ÀüÀÚ¿ìÆí
ÁÖ¼ÒÀÌ´Ù. ÀÌ °¡Á¤À» µû¸£Áö ¾ÊÀ¸¸é ºñ·Ï µ¿ÀÛÀº ÇϰÚÁö¸¸ ¸ÞÀÏ °ü¸®°¡
»ó´çÈ÷ ¾î·Á¿öÁø´Ù. À̸¦ ¸·À¸·Á¸é A ·¹ÄÚµå(¶Ç´Â MX °°Àº ·¹ÄÚµå)¸¦
´ë½Å »ç¿ëÇÑ´Ù.
www A 192.168.196.2
¸¹Àº bind Àü¹®°¡µéÀº CNAMEÀ» »ç¿ëÇÏÁö ¸» °ÍÀ» ±ÇÇÑ´Ù. ±×·¯¹Ç·Î »ç¿ëÇÏÁö ¾Ê´Â °Í¿¡ ´ëÇØ ¾ÆÁÖ ½ÅÁßÇÏ°Ô °ËÅäÇØ º¸¶ó.
±×·¯³ª ¿©·¯ºÐµµ ¾Ëµí, ÀÌ ÇÏ¿ìÅõµµ ±×·¸°í ¸¹Àº »çÀÌÆ®°¡ ÀÌ ±ÔÄ¢À» µû¸£Áö´Â ¾Ê´Â´Ù.
ndc reload·Î µ¥ÀÌÅͺ£À̽º¸¦ »õ·Î ÀÐ¾î µéÀÌÀÚ. ndc reload¸¦ ½ÇÇàÇϸé
named´Â ÆÄÀϵéÀ» ´Ù½Ã Àд´Ù.
$ nslookup
Default Server:  localhost
Address:  127.0.0.1
> ls -d linux.bogus
ÀÌ´Â ¸ðµç ·¹Äڵ尡 Ãâ·ÂµÇ¾î¾ß ÇÔÀ» ¶æÇÑ´Ù . °á°ú´Â ´ÙÀ½°ú °°´Ù.
[localhost]
$ORIGIN linux.bogus.
@                       1D IN SOA       ns hostmaster (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        1W              ; expiry
                                        1D )            ; minimum
                        1D IN NS        ns
                        1D IN NS        ns.friend.bogus.
                        1D IN TXT       "Linux.Bogus, your DNS consultants"
                        1D IN MX        10 mail
                        1D IN MX        20 mail.friend.bogus.
gw                      1D IN A         192.168.196.1
                        1D IN HINFO     "Cisco" "IOS"
                        1D IN TXT       "The router"
mail                    1D IN A         192.168.196.4
                        1D IN MX        10 mail
                        1D IN MX        20 mail.friend.bogus.
                        1D IN HINFO     "386sx" "Linux 1.0.9"
localhost               1D IN A         127.0.0.1
www                     1D IN CNAME     ns
donald                  1D IN A         192.168.196.3
                        1D IN MX        10 mail
                        1D IN MX        20 mail.friend.bogus.
                        1D IN HINFO     "i486" "Linux 1.2"
                        1D IN TXT       "DEK"
ftp                     1D IN A         192.168.196.5
                        1D IN MX        10 mail
                        1D IN MX        20 mail.friend.bogus.
                        1D IN HINFO     "P6" "Linux 1.3.59"
ns                      1D IN A         192.168.196.2
                        1D IN MX        10 mail
                        1D IN MX        20 mail.friend.bogus.
                        1D IN HINFO     "Pentium" "Linux 1.2"
@                       1D IN SOA       ns hostmaster (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        1W              ; expiry
                                        1D )            ; minimum
°á°ú°¡ À§¿Í °°´Ù¸é Á¤»óÀÌ´Ù. À§ °á°ú´Â ¹Ù·Î Á¸ ÆÄÀϰú ºñ½ÁÇÏ°Ô º¸ÀδÙ. www¿¡ ´ëÇØ¼´Â ¹«¾î¶ó ¸»ÇÏ´ÂÁö È®ÀÎÇØ º¸ÀÚ.
> set q=any
> www.linux.bogus.
Server:  localhost
Address:  127.0.0.1
www.linux.bogus canonical name = ns.linux.bogus
linux.bogus     nameserver = ns.linux.bogus
linux.bogus     nameserver = ns.friend.bogus
ns.linux.bogus  internet address = 192.168.196.2
´Þ¸® Ç¥ÇöÇÏÀÚ¸é, www.linux.bogusÀÇ ½ÇÁ¦ À̸§Àº
ns.linux.bogusÀÌ´Ù. µµÇÑ ns¿¡ ´ëÇÑ Á¤º¸µµ ÇÔ²² ¹ÝÈ¯ÇØ ÁÖ±â
¶§¹®¿¡ ÇÁ·Î±×·¥Àº ÀÌ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ns(wwwÀ̱⵵ ÇÔ)¿¡ Á¢¼ÓÇÒ ¼ö ÀÖ´Ù.
ÀÌÁ¦ ÇÑ ¹Ý Á¤µµ¸¦ ¼³¸íÇÏ¿´´Ù.
ÀÌÁ¦ Ŭ¶óÀÌ¾ðÆ® ÇÁ·Î±×·¥µéÀÌ linux.bogu µµ¸ÞÀΠȣ½ºÆ®µéÀÇ À̸§À» ÁÖ¼Ò·Î º¯È¯ÇÏ¿© ¿øÇÏ´Â ÄÄÇ»ÅÍ¿¡ Á¢¼ÓÇÒ ¼ö ÀÖ´Ù. ±×·¸Áö¸¸, ¿ªº¯È¯ Á¸ÀÌ ¼³Á¤µÇ¾î¾ß DNS°¡ ÁÖ¼Ò¸¦ À̸§À¸·Î º¯È¯ÇÒ ¼ö ÀÖ´Ù. FTP, IRC, WWW µî ´Ù¾çÇÑ ¼¹ö°¡ ¿©·¯ºÐÀÇ ÄÄÇ»ÅÍ¿Í Åë½ÅÀ» Çã¿ëÇÒ °ÍÀÎÁö, Çã¿ëÇÑ´Ù¸é ¾î¶² ¿ì¼± ¼øÀ§¸¦ ÁÙ °ÍÀÎÁö °áÁ¤ÇÏ´Â µ¥ ¹Ù·Î È£½ºÆ®¸íÀ» »ç¿ëÇÑ´Ù. ±×·¯¹Ç·Î ¿ªº¯È¯ Á¸ÀÌ ¼³Á¤µÇ¾î ÀÖ¾î¾ß¸¸ ÇØ´ç µµ¸ÞÀÎÀÇ ÄÄÇ»ÅͰ¡ ¸ðµç ÀÎÅÍ³Ý ¼ºñ½º¸¦ ¿ÏÀüÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Ù.
¾Æ·¡ ³»¿ëÀ» named.conf ÆÄÀÏ¿¡ »ðÀÔÇÏÀÚ.
zone "196.168.192.in-addr.arpa" {
        notify no;
        type master;
        file "pz/192.168.196";
};
0.0.127.in-addr.arpa°ú µ¿ÀÏÇÏ´Ù. ³»¿ëµµ ºñ½ÁÇÏ´Ù.
@       IN      SOA     ns.linux.bogus. hostmaster.linux.bogus. (
                        199802151 ; Serial, todays date + todays serial
                        8H      ; Refresh
                        2H      ; Retry
                        1W      ; 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¦ ´ç½ÅÀÇ named¸¦ Àç½ÃÀÛ(ndc restart)Çϰí nslookupÀ¸·Î Áö±Ý±îÁö
¼³Á¤ÇÑ ³»¿ëÀ» È®ÀÎÇØ º¸ÀÚ.
> 192.168.196.4 Server: localhost Address: 127.0.0.1 Name: mail.linux.bogus Address: 192.168.196.4
À§¿Í °°ÀÌ Á¦´ë·Î º¸À̸é, È®ÀÎ»ï¾Æ Àüü¸¦ ´ýÇÁ½ÃÄÑ º¸ÀÚ.
> ls -d 196.168.192.in-addr.arpa
[localhost]
$ORIGIN 196.168.192.in-addr.arpa.
@                       1D IN SOA       ns.linux.bogus. hostmaster.linux.bogus. (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        1W              ; expiry
                                        1D )            ; minimum
                        1D IN NS        ns.linux.bogus.
1                       1D IN PTR       gw.linux.bogus.
2                       1D IN PTR       ns.linux.bogus.
3                       1D IN PTR       donald.linux.bogus.
4                       1D IN PTR       mail.linux.bogus.
5                       1D IN PTR       ftp.linux.bogus.
@                       1D IN SOA       ns.linux.bogus. hostmaster.linux.bogus. (
                                        199802151       ; serial
                                        8H              ; refresh
                                        2H              ; retry
                                        1W              ; expiry
                                        1D )            ; minimum
¿Í¿ì, ¼º°øÀÌ´Ù!
¿©±â¿¡ º¸ÃæÇØ¾ß ÇÒ °ÍÀÌ ¾à°£ ÀÖ´Ù. À§ÀÇ ¿¹¿¡¼ »ç¿ëµÈ IP ¼ýÀÚµéÀº 'private
nets' ºí·°Áß¿¡¼ Çϳª¸¦ ÅÃÇÑ °ÍÀÌ´Ù. ±×·¯¹Ç·Î ÀÎÅͳݿ¡ ¹°·Á¼ °ø½ÄÀûÀ¸·Î
»ç¿ëµÇ¾î¼´Â ¾ÈµÈ´Ù. ±×·¡¼ HOWTO¿¡¼ ¿¹Á¦·Î »ç¿ëÇÏ´Â °ÍÀº ¾ÈÀüÇÏ´Ù.
µÎ¹øÂ°´Â notify no; ÁÙÀÌ´Ù. À̰ÍÀº 'named'°¡ ±× Áö¿ª ÆÄÀϵé Áß¿¡¼ Çϳª°¡
°»½ÅµÇ¾úÀ» ¶§ secondary(slave) ¼¹ö¿¡°Ô ¾Ë¸®Áö ¾Êµµ·Ï ÇÑ´Ù. bind-8¿¡¼´Â
Áö¿ª ÆÄÀÏÀÌ °»½ÅµÇ¾úÀ» ¶§ Áö¿ª ÆÄÀÏ¿¡ ³ª¿µÈ NS ·¹ÄÚµåÀÇ ¼¹ö¿¡°Ô 'named'°¡
¾Ë·ÁÁÙ ¼ö ÀÖ´Ù. ÀÌ ±â´ÉÀº DNS¸¦ ½ÇÁ¦·Î ¿î¿µÇÒ ¶§´Â Æí¸®ÇÏÁö¸¸ »çÀûÀÎ ¿¬½À¿¡´Â
ÀÌ ±â´ÉÀ» ²¨¾ßÇÒ °ÍÀÌ´Ù. ¿ì¸®ÀÇ ¿¬½ÀÀ¸·Î ÀÎÅͳÝÀ» ¿À¿°½Ãų ¼ö´Â ¾øÁö ¾ÊÀº°¡?
Áö±Ý±îÁö »ç¿ëÇÑ µµ¸ÞÀεµ ¿ÏÀüÈ÷ °¡»óÀ̰í, ±× Áּҵ鵵 ½ÇÁ¦·Î »ç¿ëÇÏ´Â ÁÖ¼Ò°¡ ¾Æ´Ï´Ù. ½ÇÁ¦ µµ¸ÞÀÎÀÇ ¿¹´Â ´ÙÀ½ ÀýÀ» ÂüÁ¶Ç϶ó.