     chroot

      .  ,  -
      .    
  ,       
,   .        
 chroot:

 /usr/sbin/chroot    /bin/su    &

       ,  
 ,  ,  _   ( 
)   .

       chroot. -
 system-config-bind (.  "  II: system-config-bind: 
"  24)   DNS ,   named 
  ,  FTP- vsftpd    -
  chroot   (.  "    
chroot"  19).

 

      root,    -
 root     (   Procmail  vsftpd).  -
    su      .

,    root,     -
  chroot.      ,  
 ,      su    -
.  ,    setuid- (.  " -
 setuid  setgid"  6),       -
,          -
  .  ,  ,    
     .

DHCP

         
  ,  DHCP (Dynamic Host Configuration Protocol   -
  )     -
        . DHCP- -
      IP-   .

       
    :

 DHCP      Internet,   
IP-,  ,  DNS    -
.    DHCP   
.

 DHCP     IP-     
,     .  
   ,    ,    

 11.  :                     431