Solaris 10 autofs directory permissions - Solution

本文解决了一个关于自动挂载目录后权限丢失的问题。通过调整/etc/auto_direct文件的权限从755改为644，成功解决了目录权限丢失的问题。

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Problem
 Description
==================================================



OS 5.10 Generic_127127-11



Simple client auto_master / auto_direct setup [OS 5.10

Generic_127127-11], see files below



/etc # cat auto_master

/-      /etc/auto_direct



/etc # cat /etc/auto_direct

/sysadmin/audit/output  -rw     londeploy-p1:/sysadmin/audit/output

/sysadmin/audit/bin             londeploy-p1:/sysadmin/audit/bin



Directories shared [on 5.9 Generic_117171-15] as:



#  share -F nfs -o rw,anon=0 -d "Audit Home" /sysadmin/audit/output #

share -F nfs -o ro -d "Audit Home" /sysadmin/audit/bin



# AutoFS service [refreshed]



/etc # svcs | grep -i autofs

online          9:16:10 svc:/system/filesystem/autofs:default



PROBLEM

-----------



Automounted directories loose permissions once automounted



Before :



drwxr-xr-x   2 root     other       4608 Jul 22 10:22 output

drwxr-xr-x   2 root     other        512 Jul 22 10:19 bin



After [IE After cd'ing into directory]:



dr-xr-xr-x   1 root     root           1 Jul 22 09:29 output

dr-xr-xr-x   1 root     root           1 Jul 22 09:29 bin



# cd output

bash: cd: output: Permission denied

# id

uid=0(root) gid=0(root)



Can anyone tell me why my directory permissions are changing and how to

make them persistant with automountd?





Solution
==================================================

If the execute permission is set, it becomes an executable map which is

a shell script that outputs the required automount commands, but can

include extra logic to determine which mounts should be made.  From

automount(1M):



      Local maps that have the execute bit set in their file  per-

      missions  will  be  executed by the automounter and provided

      with a key to be looked up as an  argument.  The  executable

      map  is expected to return the content of an automounter map

      entry on its stdout or no output  if  the  entry  cannot  be

      determined.  A direct map cannot be made executable.



Simply chmod'd my /etc/auto_direct from 755 to 644 and the problem was

resolved.