 3.       DNS 141

       ;

EXPIRE  32-  ( )  -
   ; MINIMUM  32-  ( )
  TTL,     -
     ,     
TTL     .

                                           15

MNAME
RNAME
SERIAL
REFRESH
RETRY
EXPIRE
MINIMUM

. 3.11.     SOA

  "WKS".     WKS (. 3.12)  
   ,  
, ,     (
ADDRESS  32 ).  PROTOCOL (8 )  
,    (<BIT MAP>   ) -
  ,    :   -
,  1,    ( , 
  , ,    0). , 
PROTOCOL=6 (TCP),  26-     1,  , 
   25- (SMTP)   TCP.  WKS -
   ,    .

                      8                     15

ADDRESS

PROTOCOL

BIT MAP

. 3.12.     WKS