DNS (Domain Name System)

 

1) µµ¸ÞÀÎ ³×ÀÓ(Domain Names )

°¡) °èÃþÀûÀÎ ±¸Á¶

³ª) Á¡(Dot(.))Àº ºÐ»êÀڷμ­ »ç¿ë

´Ù) Top-level domain: .edu, .gov, .mil, .com, .arpa, .org, .net + ±¹°¡µµ¸ÞÀÎ (.uk, .de, .no, .il, etc...)

 

2) Nameserver °³³ä

°¡) Á¸(Zone ) : ³×ÀÓ¿¡ ´ëÇÑ ¿µ¿ªÀ» ³ªÅ¸³½´Ù.

³ª) µµ¸ÞÀÎ(Domain) : ³×ÀÓ ¿µ¿ªÀÇ ÇѺκÐÀÌ´Ù.  

3) Domain À§ÀÓ

°¡) Top two levels delegated from the NIC¿¡¼­ À§ÀÓµÈ Top Two ·¹º§

³ª) Third ·¹º§ °ú ´õ ³·Àº ·¹º§Àº ±×´ÙÀ½ »óÀ§¿¡ ÀÖ´Â µµ¸ÞÀο¡¼­ À§ÀÓÇÑ´Ù.

´Ù) ¿¹

4) ÇØ°áÀÚ(Resolvers)

°¡) µµ¸ÞÀÎ ³×ÀÓ Á¤º¸¿¡ ´ëÇÑ ÁúÀÇ(queries)¸¦ »ý»êÇÏ¿© ³×ÀÓ¼­¹ö·Î º¸³½´Ù

³ª) Ŭ¶óÀ̾ðÆ® ¿äû¿¡ ÀÀ´äÇÏ¿© ³×ÀÓ ¼­¹ö·ÎºÎÅÍ Á¤º¸¸¦ ÃßÃâÇϸç, »ç¿ëÀÚ ÇÁ·Î±×·¥À» µµ¸ÞÀÎ ³×ÀÓ ¼­¹ö¿¡ Á¢¼Ó½ÃÅ°´Â ÇÁ·Î±×·¥

´Ù) ³×ÀÓ¼­¹ö ±â´É¿¡¼­ ºÐ¸®µÈ ±â´É

¶ó) /etc/resolv.conf ¿¡¼­ ¼³Á¤µÊ
;

; Bind Data

;

domain ee.usm.maine.edu ; used to fully qualify non canonical DNS requests

nameserver 130.111.130.7 ; Where are my Nameservers

nameserver 130.111.32.11 ; and in what order to I query them

nameserver 130.111.128.213 ; Note, these are IP addresses only.

nameserver 128.89.2.34 ;

 

5) ³×ÀÓ ¼­¹ö(Name Servers)

°¡) DNS Server

6) µ¿ÀÛ

 

7) Named Configuration ÆÄÀÏ

°¡) Boot file (named.boot): ÀϹÝÀûÀÎ named configuration parameters

³ª) Root cache (named.ca): root µµ¸ÞÀÎ ³×ÀÓ ¼­¹ö ³×ÀÓµé °ú addresses¸¦ Æ÷ÇÔÇÏ´Â cache

´Ù) Loopback entry (named.local): locally resolve loopback address ¸¦ »ç¿ëÇϱâÀ§ÇØ

¶ó) Forward mappings (hosts.db): È£½ºÆ® ³×ÀÓÀ» IP addresses ·Î ¸ÅÇνÃŲ ÆÄÀÏ

¸¶) Reverse mappings (hosts.rev): IP addresses ¸¦ ³×ÀÓµé·Î ¸ÅÇνÃŲ ÆÄÀÏ

¹Ù) All these files except for named.boot are defined in the named.boot ÆÄÀÏ¿¡ Á¤ÀǵǾî ÀÖ´Â named.boot¸¦ Á¦¿ÜÇÑ ¸ðµç ÆÄÀÏÀº ·ÎÄÿ¡ SetÇØ¾ß ÇÑ´Ù

 

8) Primary ¿Í Secondary ¼­¹ö

°¡) Primary

³ª) Secondary