/ete/protocols.   ,     -
 TCP/IP  DARPA Internet. He   .

/ete/rc.d.    ,    -
  (run command  re).  init   -
        .  
    /etc/rc.d/init.d.    
    /ete/rc.d. ,    3 -
  /etc/rc.d/rc3.d.        -
     init. d.     ,
    (    
),         -
         
   .      "-
 :     "  11.

/etc/resolv.conf.    IP- (.  "-
,   "  24),      DNS.
     resolv.conf   example, corn. 
resolv.conf  ,   ,  :    
 :

# cat /etc/resolv.conf

domain example.corn
nameserver 10.0.0.50
nameserver 10.0.0.51

 ()    .   domain  
resolv.conf    search:      -
     .         
 ,    . . ,  FQDN.
  domain       :  
   DNS-,      
  .    domain   resolv.conf
      example, corn     (,
marketing.example.com)     :

  ping speedy.marketing.example.com    ping
speedy.marketing.

  search  domain,     
.         .
   resolv.conf ,    
 marketing,   sales, , ,   example. corn:

search marketing.example.com sales.example.com example.corn

      ,   
     .   
speedy.marketing.example.com  speedy.example.com,    -
,     DNS.    . 
   (     ),    -
  DNS,      .

454                                        IV.  