problems with modem (ttyS0 and wvdial)

[Antonio Olivares]

--- On Sun, 6/7/09, François Patte <francois.patte at mi.parisdescartes.fr> wrote:

> From: François Patte <francois.patte at mi.parisdescartes.fr>
> Subject: Re: problems with modem (ttyS0 and wvdial)
> To: "Community assistance, encouragement, and advice for using Fedora." <fedora-list at redhat.com>
> Date: Sunday, June 7, 2009, 8:35 AM
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> Le 06/06/2009 20:21, Kevin Kofler a écrit :
> > François Patte wrote:
> >> How can I make this change the default
> permissions
> > 
> > You can add your user to the "uucp" group.
> 
> OK. Thanks, I did it and nothing has changed: root can use
> /dev/ttyS0
> and John Doe cannot....
> 
> Best regards.
> 
> F.P.
> - --
> François Patte
> UFR de mathématiques et informatique
> Université Paris Descartes
> 45, rue des Saints Pères
> F-75270 Paris Cedex 06
> Tél. +33 (0)1 4286 2145
> http://www.math-info.univ-paris5.fr/~patte
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Have you tried the following:

http://nixcraft.com/centos-rhel-fedora/12317-dial-out-demand-using-wvdial-non-root-user.html

Don't know if the following still applies, but you can also check:

http://lists.linuxcoding.com/rhl/2004/msg19384.html

Similar but related 
http://www.mail-archive.com/linux-newbie%40vger.rutgers.edu/msg17611.html

Hope this helps,

Antonio