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Old 01-08-2005, 11:25 PM   #1
jobless_joe
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disable write in file system


How would I go about disabling write permission to the whole hard drive for a particular user?
 
Old 01-09-2005, 12:47 AM   #2
ar1
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You could add the appropriate "umask" identifiers to the file /etc/fstab
 
Old 01-09-2005, 09:14 AM   #3
Oliv'
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Hello,

probably a bit harder, 'cause with ar1's method "user" will always be able to write its own /home directory... unless you also set "umask" permissions correctly in user's config file and then lock these files (for example chattr +i ~/.bashrc)

Oliv'
 
Old 01-12-2005, 08:52 PM   #4
jobless_joe
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Ok, i know this might seem a bit involved, but is there any way to COMPLETELY secure a linux system so that without the root password, the user can not do anything malicious? Also, If I do edit the fstab, where would I put the user name. I've read some things about it, and the five columns provide nowhere for individual access rights.
 
Old 01-13-2005, 08:23 AM   #5
Oliv'
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Quote:
Ok, i know this might seem a bit involved, but is there any way to COMPLETELY secure a linux system so that without the root password, the user can not do anything malicious?
I think that's impossible Of course you can secure your system so that anything malicious will never happen... but you can't be sure. For example a new kernel flaw appear, the attacker exploits this flaw and gain root privileges
Quote:
Also, If I do edit the fstab, where would I put the user name. I've read some things about it, and the five columns provide nowhere for individual access rights.
in the fouth column... with the options "umask=" or "user="... see man mount and the corresponding FS for more info

Oliv'
 
  


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