 SORIGIN  ,    -
 .   ,    Zone  named, con f 
    localhost (zone "localhost" IN {).    , -
 @     SOA  ,   localhost.

          NS,
     localhost,    ,  
  127.0.0.1.   Name   NS   ,  -
      ,    @.

named.local.   named, local      
0.0.127.in-addr.arpa.      ,     localhost, 
 TTL      ,   BIND  -
   STTL   .        -
  PTR,  ,     IP-.  -
 PTR   1,      1  
(0.0.127.in-addr.arpa)  localhost.

$ cat /var/named/named.local

$TTL   86400
@      IN      SOA'    localhost. root.localhost.      (

1997022700     ; Serial

28800          ; Refresh

14400          ; Retry

3600000        ; Expire

86400)         ; Minimum
IN      NS     localhost.

1      IN      PTR    localhost.

  named (.  " named"    )  -
 ,    " "    ,
 ,   .

 DNS

       . ,  
 ,   sitel.example.com (. 24.3),    
ns.sitel.example.corn.

  DNS-   www. sitel .example, corn  -
   example, corn    NS,   ns.sitel.example.com.
   ns.sitel.example.com, DNS-   -
      example, corn,    
ns.sitel.example.com.       ns.sitel.example.com.

          -
  ,    .      -
 ,    ,      -
      .    
 .        , 
   NS    NS.     IP-
 ,    ,      .

 24. DNS/BIND:                            741