Unix Filepro 5.6 (at least)

[Fairlight]

No idea what causes it, but if the chattr facility is available on the
filesystem, you could make the map files immutable (and thus untouchable,
even by root).  :)

chattr +i path

If you need to modify it, do a `chattr -i`, do your work, then do a +i
again.

Should put paid to anything tampering with it.

You should be able to tell if you can do it with `lsattr path`.  If it
doesn't give you ioctl (or other) errors, you should be good to use it.

mark->

On Mon, May 18, 2015 at 02:24:03PM -0400, Nancy Palmquist via Filepro-list thus spoke:
> Filepro users,
> 
> One of my accounts is experiencing a very strange issue.  They have
> a few filepro files that will work perfectly and the next time they
> try to use the file it reports the map is invalid.
> 
> If you look at the system, the map will have 0 length- and is
> certainly invalid.
> This has happened to more than one file.
> This has been noted to happen day or night.  We had an incident last
> week where they used the file and came back an hour later and the
> map was zero length.
> 
> They use terminals that are Windows machines running an emulator. (I
> can not remember which but I know it is not ANZIO.)
> 
> We have actually changed the system entirely since this started
> happening on the Unix side.
> 
> I think it is something running on Windows - like a virus scan or
> malware software that thinks map is bad and might scan all computers
> in the network.  The tech has "supposedly" looked at this
> possibility but did not find anything.
> 
> It does not reset all maps - they have quite a few of them - just a
> select few and seems to hit the same ones over and over.
> 
> Any ideas?
> 
> -- 
> Nancy Palmquist
> 
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-- 
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