Re: Strange situation on /etc/profile

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El Dom 02 Mar 2003 06:55, Michael Kuss escribió:
> On Sun, 2 Mar 2003, Carlos A. Siso wrote:
> > I checked the /etc/profile file and founded that the line 30 has been
> > changed from:
> >
> > USER="`id -un`"
> > to
> > USER=b`id -un`"
> >
> > The file last modification date is "Mar 11 2002" (Firewall installation
> > date). Aside from this, I have been unable to detect any other change to
> > this file or to others firewall's files. There are no unexpected task
> > running, xinetd is not installed and the firewall script is OK. Overall,
> > the firewall is operating as expected.
> >
> > This seems to me like the hard disk is having problems, but while I have
> > seen corrupted files before (on other systems with nearly dead hard
> > disks), what amuse me is the only one byte corruption. Is this possible??
> >
> > Normally I will take this like a hard disk problem, but because this
> > machine is the firewall, I have some security concern. Could it be that
> > someone is tampering the firewall? Has anybody seen something like this?
>
> yepp, and in my case it was the memory.  I recommend running memtest86.
> Also note, " \042 and b \142 just differ by one bit.
>
> Cheers,
>
> Michael

Thanks. It seems more like a memory problem. I will make some hardware test 
test on this machine...

-- 
Carlos A. Siso



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