Re: STICKY BIT !

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Date: Sat, 31 May 2003 02:44:37 GMT
To: Sco Mailing List <scomsc@xenitec.on.ca>

On Sat, May 31, 2003 at 09:51:44PM -0400, Patrice Brien wrote:
>I have some Sco OpenServer 5.0.x
>
>I often get a sticky bit on /tmp directory
>
>No body set that permission !
>
>Where is it come from ?
>
>Even if I set "chmod 777 /tmp", sometime a week after , i get the same
>problem again.

This isn't a problem, but a feature. The sticky bit on /tmp helps minimize
some kinds of attacks that take advantage of race condtions with
predictable file names created in the /tmp directory. It allows anybody to
create entries in /tmp, but only the owner (and root of course ) can delete
an entry once its created.

The modes of /tmp will often get reset by programs like ``custom'',
``fixmog'', and ``fixperm''.

Bill

--
INTERNET:   bill@Celestial.COM  Bill Campbell; Celestial Software LLC
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nothing, that don't hurt anybody.  When they do something is when they
become dangerous.''
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