   ,        -
 LDAP (. )  NIS.       -
  passwd   .

 root_squash (no_root_squash).     root 
     DID  
nfsnobody       
   anonuid.        -
  FTP,    .

 no_all_squash (all_squash). He   , -
  NFS-.  all_squash    -
   ,    root, ,    -
  UID  nfsnobody     
    ,   anonuid.   
      FTP,  
 .

 anonuid=un  anongid=gn.  UID  GID   -
 , ,   . NFS    , 
    UID  GID       

root-squash  all-squash.

showmount:     NFS

     showmount   ,  -
   .      
       .  showmount -
       . ,
  showmount,   ,     
mountd  ,      .

    bravo  grape    -
,     :

 /usr/sbin/showmount

Hosts on localhost:      (  localhost)

bravo.tcorp.corn

grape.tcorp.com

 showmount     RPC: Program not registered (RPC:

  ),  ,  NFS    . -
 NFS       nfs (.  "
"  "NFS-"    ).

 -a. all (). ,       -
.      /etc/exports.

# /usr/sbin/showmount -

All mount points on localhost:     (    localhost)
bravo.tcorp.com:/home
grape.tcorp.corn:/home

 22. NFS:     689