James (Jim) Hatridge wrote:

HI All,

In Chmod, what do they mean by "Sticky Bit", ie 1000?

You can grant *other users* your rights running a binary. if the other user is permitted (group, world executeable) to run it, the programm is run with your UID. This can be a *big* securety risk, particulary if the granting party is root. But this would be 4000 (or 2000 for the rights of the files group), 1000 is -as man chmod tells- only used for directorys. Juergen -- ========================================== __ _ Juergen Braukmann mail: brauki@cityweb.de| -o)/ / (_)__ __ ____ __ Tel: 0201-743648 dk4jb@db0qs.#nrw.deu.eu| /\\ /__/ / _ \/ // /\ \/ / ==========================================_\_v __/_/_//_/\_,_/ /_/\_\ - To get out of this list, please send email to majordomo@suse.com with this text in its body: unsubscribe suse-linux-e Check out the SuSE-FAQ at <A HREF="http://www.suse.com/Support/Doku/FAQ/"><A HREF="http://www.suse.com/Support/Doku/FAQ/</A">http://www.suse.com/Support/Doku/FAQ/</A</A>> and the archiv at <A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html"><A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html</A">http://www.suse.com/Mailinglists/suse-linux-e/index.html</A</A>>

Hi, On Mon, Dec 14, 1998 at 17:00 +0100, James (Jim) Hatridge wrote:

In Chmod, what do they mean by "Sticky Bit", ie 1000?

If you set it on a directory (e. g. /tmp), users can only delete their own files in it. Have a look at /tmp's permissions: drwxrwxrwt 4 root root 1024 Dec 14 20:38 /tmp without the sticky bit every user would have permission to remove someone elses files. On files the sticky bit doesn't have an effect (at least in Linux). Ciao, Stefan - To get out of this list, please send email to majordomo@suse.com with this text in its body: unsubscribe suse-linux-e Check out the SuSE-FAQ at <A HREF="http://www.suse.com/Support/Doku/FAQ/"><A HREF="http://www.suse.com/Support/Doku/FAQ/</A">http://www.suse.com/Support/Doku/FAQ/</A</A>> and the archiv at <A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html"><A HREF="http://www.suse.com/Mailinglists/suse-linux-e/index.html</A">http://www.suse.com/Mailinglists/suse-linux-e/index.html</A</A>>

Hi, On Mon, 14 Dec 1998, James (Jim) Hatridge wrote:

In Chmod, what do they mean by "Sticky Bit", ie 1000?

AFAIK, If you use the sticky bit for directories, only the owner of a file will be able to remove it, despite of the other permissions. Linux does not use this bit for files. The /tmp - directory is an example for a sticky directory:

file /tmp/ /tmp/: sticky directory

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