linux権限操作

2908 ワード

    
    :useradd                     
-g           (          )
-G           (        ,    )
-c                
     -d             
useradd –g aa bb            bb       aa
useradd –G user1 aa          aa     user1

----------------------------------------------------
    :passwd [   ]
            -l          
            -u          
               

    :userdel -r    
-r:        ,    
----------------------------------------------------

      
    :usermod             useradd
usermod  -g   webadmin  jack
usermod  -G  group1,group2  jack
    
-l     -c       -e        -L     
-U     -aG      

----------------------------------------------------
     
   :groupadd    
   :groupmod      
-n:    
groupmod -n newname oldname
   :groupdel
   :gpasswd    -a          
-a        -d       

----------------------------------------------------
      :su [-]    
--  root,              

      :id       
    UID,GID      

----------------------------------------------------
  :
    jack mary   /software    
groupadd softadm
usermod –aG softadm jack
gpasswd –a marry softadm        
chgrp softadm /software
chmod g+w /software
  !

-----------------------------------------------------
ACL(Access Control List),    /        ,        /   RWX  ,  2.6      。
    :
setfacl -m <rules> <files>
setfacl -m u:   :      
setfacl -m g:  :      
 :setfacl -m u:jack:rx /backup

-m:    
-x:      
setfacl –x u:jack /backup
-b:      
-R:    (    )
    :setfacl -m d:u:jack:rwx -R /test
              
  ACL  :getfacl    (       +)

       ACL          :
setfacl  -R –m u:   :            
  :setfacl -m u:apache:rwx -R /var/www/html/
//           acl  

setfacl –R –m    d:u:   :            
    //         acl  
  :setfacl -m d:u:apache:rwx -R /var/www/html/