[CLUE-Tech] I just don't understand it

[Joe Linux]

Actually as root I change "/home/jl" to be 770 or 750 and then after an 
undetermined but compartively short period of time it gets chanked back 
to 755 which means any other user can look into my "home."

Following is an example of the command I used cut an pasted from a 
genuine CLI.

[jl at localhost jl]$ su
Password:
[root at localhost jl]# chmod 750 /home/jl

David Jackson wrote:

>Ed --
>You missed Joe's problem, he see the perm to say 755 and the Mandrake
>changes them back to say 750? Which as someone else suggested (beside myself)
>a cron job is running to change perms as a secruity practice.
>
>David
>
>>On Wed, 2002-05-22 at 14:08, Joe Linux wrote:
>>
>>>After a great deal of time consuming effort, I thought I had the 
>>>Mandrake permissions problem solved, but now they have come back as 
>>>before -
>>>755.  It seems rather odd to me that on a multi-user system that one 
>>>user can peer into another users files, and you can't do anything to 
>>>stop it.
>>>Mandrake Linux is like a glass house with no window shades.
>>>
>>
>>No, its most certainly not a "glass house" as you describe.
>>
>>What exactly are you trying to do?
>>
>>If you want to make a particular directory (or even an entire home
>>directory and all its contents) private, then its very easy.  Just use:
>>
>> chmod 700 /home/user_name/dir_to_make_private
>>
>>or
>>
>> chmod 700 /home/user_name
>>
>>and you're done.
>>
>>If this gives you problems, then things to check are:
>>
>> (1) What kind of filesystem are you using?  If you're using some 
>>     kind of MS FAT filesystem then this may not work since (AFAIK) 
>>     some FAT filesystems do not fully support Unix-style (POSIX) 
>>     permissions.  And if thats the case, then shame on *you* for 
>>     choosing to use a non-Unix filesystem and then demanding that  it
>>     support POSIX permissions.
>>
>> (2) Mount point:  If the directory that you are trying to alter 
>>     the permissions on is itself a mount point for a file system, 
>>     then read "man chmod" and "man mount" for the details 
>>     (permissions are set at mount time).
>>
>>If you have more questions about chmod for the group, then I suggest
>>you provide a more exact description of what you're trying to
>>accomplish and *exactly* what commands you're using.
>>
>>hth,
>>Ed
>>
>>
>>-- 
>>Edward H. Hill III, PhD    |  Email:       ed at eh3.com, ehill at mines.edu
>>Post-Doctoral Researcher   |  URLs:        http://www.eh3.com
>>Division of ESE            |  
>>http://wasser.mines.edu/people/edhill.php Colorado School of Mines   | 
>>Phone:       303-273-3483
>>Golden, CO  80401          |  Fax:         303-273-3311
>>Key fingerprint = 5BDE 4DA1 66BE 4F7B BC17  3A0C 932B 7266 1E76 F123
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>
>

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