[TAG] pppd changing file permissions (Was Re: lpr works for user not root in Basiclinux 2.1)

[sindi keesan]

Regarding spontaneous permission resets:
> [nod] On a "normal" system, I'd set the device to "chattr +i" and see
> what process croaked (or complained in the log files.) On the B.A.D.
> gadget that Sindi is using, it's anybody's guess.
>

The man page says +i prevents you from writing data to the file.  I need 
to write to the device to use the modem or rxvt.  The problem is that it 
is being reset so the user cannot write to it.

i is immutable
u is undeletable

Sort of like write protection in DOS?

I doubt we have log files.

chattr +i /dev/ttyp0
chattr:  Input/output error while reading flags on /dev/ttyp0
(same for -i)

chattr +i /dev/ttyS1  or ttyLT0
chattr:  Invalid argument while reading flags on /dev/ttyS1

A web search gave me someone talking about reiserfs and a comment that 
chattr only works for ext2 fs.

lsattr gives the same results.

Maybe our devices don't have flags?

> -- 
> * Ben Okopnik * Editor-in-Chief, Linux Gazette * http://LinuxGazette.NET *
>

Sindi

keesan at sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org