Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!jarthur!nntp-server.caltech.edu!madler
From: madler@nntp-server.caltech.edu (Mark Adler)
Newsgroups: comp.sys.next
Subject: Re: modem setup
Message-ID: <1991Mar27.070424.28119@nntp-server.caltech.edu>
Date: 27 Mar 91 07:04:24 GMT
References: <rm6frdm@rpi.edu> <hc7f.g_@rpi.edu>
Organization: California Institute of Technology, Pasadena
Lines: 16

In article <hc7f.g_@rpi.edu> Garance_Drosehn@mts.rpi.edu writes:
>First thing I missed is that the serial port devices (/dev/cua and /dev/cub)
>were permitted in such a way that I couldn't access them from the account I was
>using.  I "su root"-ed and did a few chmod's to clear that up.

Originally, I also chmod'ed the /dev/cua and /dev/cub devices, but I
don't think that's the kosher way to do it.  What I did instead is
leave the permissions on /dev/cu* the same, but made the owner of
kermit uucp (chown uucp kermit), and then gave kermit the privileges
of its owner (chmod u+s kermit).  Kermit has code in it to prevent
these privileges from applying to files that are read or written.
That is how cu and tip can access /dev/cu* (though their owner is
root, but that's not necessary).

Mark Adler
madler@pooh.caltech.edu