Is there an issue with changing /tmp permission?

depam · 04-16-2009, 08:18 AM

Hi,

Is there an issue with changing the /tmp permission to 755? Will any database or application go down if that's the case?

Thanks.

colucix · 04-16-2009, 08:25 AM

Yes. If the /tmp directory is not world-writable, only root can store temporary files inside it. A lot of user's applications will complain about that. Why should you change /tmp permissions, anyway?

depam · 04-16-2009, 08:33 AM

That's the problem. I have accidentally changed the /tmp directory file permission. Just confirming cause some problem arises after doing that. Even the database went down. I just thought since it is a temp directory shouldn't have any issue.

AlucardZero · 04-16-2009, 08:46 AM

Yes, change it back to 1777 (rwxrwxrwt)

depam · 04-16-2009, 08:52 AM

Yes.have changed it already. Got less than an hour downtime..I never knew this thing and it is a lesson to learn..Maybe its better for database and apps to put temporary files on other filesystem. But I am thinking that is not possible.

colucix · 04-16-2009, 11:21 AM

Quote:

Originally Posted by depam

Yes.have changed it already. Got less than an hour downtime..I never knew this thing and it is a lesson to learn..Maybe its better for database and apps to put temporary files on other filesystem. But I am thinking that is not possible.

Nope. The /tmp directory is a Unix standard. You can't change it. The developers know that /tmp is a place existing in all *nix systems to put temporary files. It has been established as a rule at the beginning and never will change.