 3.       DNS_____________139

()

   


SOA                6       ,    -
    ( ). -
  ,     -
  , SOA  
   (   
  ).  ,  
    
,    (
 ,  . .).  SOA 
      -
 

PTR                12           

WKS               11         ( 
    )

HINFO              13        (CPU)  
 (OS)  (, , 
  , 
 .)

  ,      .
        (, MD  MF 
  MX),         
   .

      ,  
      ,

,  Internet     = 1,  -
 "IN"  Internet,   CHAOS   = 3,  
"".   ""  "IN"     32- IP-
,       "" ( CHAOS)   
CHAOS,   16-  CHAOS.

   ,         -
.         "IN"
  RR.

  "CNAME".     CNAME (. 3.7) 
   ,   .

                                 15
!CNAME!

. 3.7.     CNAME