 yppasswdd

   chkconfig   yppasswdd   
      yppasswdd   
service.      " "
 "  NIS"    .

  GECOS   

  yppasswdd      GECOS
(. )      yppasswd  .  -
         
 . yppasswdd, ,   ,   
/etc/sysconfig/yppasswdd.  - chfn  yppasswdd   -
   GECOS;  - chsh    
 .      /etc/sysconfig/yppasswdd  -
     :

$ cat /etc/sysconfig/yppasswdd

YPPASSWDD_ARGS="-e chfn -e chsh"



 NIS (Network Information Service    ) -
     ,   
            -
   . ,  NIS,   NIS.  -
  NIS    ,        -
 .

 Red Hat Linux  NIS      
 ,   /etc/passwd  /etc/hosts.   
    .   NIS   -
,    ,       -
 dbm,  .  ypcat  ypmatch   
 NIS.

 yppasswd   NIS-     passwd 
,  NIS    .  /etc/ypserv.conf, -
   NIS-,       NIS-
.        /var/yp/securenets,
     RPC- NIS- 
  NIS.

672  V.     