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IDS Forum

Re: -648 error opening DEBUG file

Posted By: Jonathan Leffler
Date: Wednesday, 26 January 2011, at 12:41 p.m.

In Response To: Re: -648 error opening DEBUG file (MARK COLLINS)

On Wed, Jan 26, 2011 at 08:35, MARK COLLINS <markc@myfastmail.com> wrote:

> >>Usually, /tmp should have 1777 permissions - the sticky bit should be set
> >>so that someone other than the owner (or root) without write permission
> >> on the file should not be able to delete it.
>
> There is no sticky bit set at this time. The permissions block in ls -ld
> /tmp
> shows drwxrwxrwx. Would that prevent the procedure from creating the debug
> file?
>

This is a problem on your system tangential to the one you're running into.
It gives people more free rein to delete files than is desirable - anyone
can delete anyone else's file.
It does not affect the behaviour of IDS>

> >>Have you tried creating the file before running the procedure?
> >>
> >>In the circumstances, 666 permission might be appropriate for the test
>
> I didn't mention that, but yes, I did try creating the file, using 'touch'.
> I
> don't recall if it was 666 or 777 permissions, but I still got the error.
>

Not unreasonable - given what's below, expected in fact.

> >>Have you checked the permissions on oninit itself? It should be
> >>root:informix:6755 or root:informix:6754 - the 4 is as-shipped, the 5 is
> >>OK.
>
> Hmm, that's different. I have:
>
> -rwsr-sr-- 1 informix informix 7436702 Feb 8 1999 oninit
>
> Can the informix:informix ownership be part of the problem?
>

This is the 'root cause' of the trouble, if you'll excuse the awful double
entendre.

Fix this and you will likely find some (maybe even many) of your problems go
away.

> >>The 1 EPERM "Not owner" suggests that the server was not empowered to
> >>create the file, or (more likely) not empowered to change ownership on
> >>the file - hence my question about the permissions on 'oninit'.
>
> The error occurs whether the file exists or not, so I don't think it's
> anything to do with changing ownership. And, since /tmp has 777 (not 1777)
> permissions, it seems that anyone should be able to create the file.
>

Agreed.

> >>If there are permissions problems, they could have been created when the
> >>reversion from trusted to non-trusted occurred.
>
> That was one theory proposed by the current Unix admin. Unfortunately, the
> reversion happened many years ago, and the people who did it are long gone,
> so
> there is no way of knowing how they went about the process.
>

Life happens.

--
Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h>
Guardian of DBD::Informix - v2008.0513 - http://dbi.perl.org
"Blessed are we who can laugh at ourselves, for we shall never cease to be
amused."

--001636c5b45fa2de08049ac34999

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