Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

let's say the current permissions are www-data:www-data and I do not want to touch that. I am not sure if the web server would like that.

On the other hand I do not want to add this new user to www-data group as I want him to have access to only some website data directories.

Is anything like that possible on linux?

share|improve this question
up vote 3 down vote accepted

Yes, with extended ACLs. Click here for a quick article.

share|improve this answer
that looks very good. How can I check if the current kernel supports ACL? – Radek Sep 20 '10 at 23:41
1 That should point you in the right direction. – xeon Sep 20 '10 at 23:45
one more question :-) if I enable ACL support on ext3 nothing would change in terms of current permissions, doesn't it. – Radek Sep 20 '10 at 23:47
Don't quote me. But enabling ACL will not effect your current permissions. I have done it in the past without issue. – xeon Sep 20 '10 at 23:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.