I have setup version 2.4.31 of Slackware Linux and configured PPP according
to available instructions so that I can VPN into a Microsoft VPN Server. I
seem to have sorted out all my problems except that I can only make and use
a successful connection if I start pppd as the root user. I have suid on
pppd and tried changing the group on everything in /etc/ppp to uucp and
making the normal user a member of uucp. I still get this behavior, however
(from /var/log/messages), when I make the call as the normal user:

Jul 23 14:40:09 gort pppd[3175]: Using interface ppp1
Jul 23 14:40:09 gort pppd[3175]: Connect: ppp1 <--> /dev/pts/7
Jul 23 14:40:09 gort pppd[3175]: Modem hangup
Jul 23 14:40:09 gort pppd[3175]: Connection terminated.

and from /var/log/syslog:

Jul 23 14:40:09 gort pppd[3175]: Couldn't get channel number: Input/output
error

I have a feeling there is still some lingering permission issue somewhere
but I don't know where to look. Can anyone help?