> > > > Wrong. That would allow all those users to snoop on each other's > > ppp connections, since they get read-access to the modem port. > > I'm the only user - it's my home computer so I don't care. > > > The correct group is dip. > > Wrong again ;) > At least with wvdial. With pon/poff it's all ok. i don't have to > be in group dialout nor have g+w permission on /dev/ttyS1. If > /dev/ttyS1 is g+w while starting pppd, pppd removes it and puts > back on exit. > But if i use wvdial, /dev/ttyS1 has to be group writable: > > SeLeR:/home/piotr# l /dev/ttyS1 > crw-r----- 1 root dialout 4, 65 wrz 5 22:41 /dev/ttyS1 > [EMAIL PROTECTED]:~/download/5$ wvdial <<<<---------- > --> WvDial: Internet dialer version 1.41 > --> Cannot open /dev/ttyS1: Permission denied > > If it has g+w, wvdial is working ok. It connects to my IP and then > starts pppd, and pppd removes +w. But I think it's not ending pppd > properly. This is from syslog: > > pppd started by pon and ended by poff: > Sep 5 23:00:24 SeLeR pppd[938]: Terminating on signal 15. > Sep 5 23:00:24 SeLeR pppd[938]: sent [LCP TermReq id=0x2 "User request"] > Sep 5 23:00:25 SeLeR pppd[938]: Script /etc/ppp/ip-up finished (pid 940), > stat$Sep 5 23:00:25 SeLeR pppd[938]: Script /etc/ppp/ip-down started (pid > 970) > Sep 5 23:00:26 SeLeR pppd[938]: Script /etc/ppp/ip-down finished (pid > 970), st$Sep 5 23:00:27 SeLeR pppd[938]: sent [LCP TermReq id=0x3 "User > request"] > Sep 5 23:00:30 SeLeR pppd[938]: sent [LCP TermReq id=0x4 "User request"] > Sep 5 23:00:33 SeLeR pppd[938]: sent [LCP TermReq id=0x5 "User request"] > Sep 5 23:00:36 SeLeR pppd[938]: sent [LCP TermReq id=0x6 "User request"] > Sep 5 23:00:39 SeLeR pppd[938]: Hangup (SIGHUP) > Sep 5 23:00:39 SeLeR pppd[938]: Modem hangup > Sep 5 23:00:39 SeLeR pppd[938]: Connection terminated. > Sep 5 23:00:39 SeLeR pppd[938]: Connect time 0.1 minutes. > Sep 5 23:00:39 SeLeR pppd[938]: Sent 97 bytes, received 76 bytes. > Sep 5 23:00:40 SeLeR pppd[938]: Exit. >
Correct me if I am wrong. I notice that you have issued your "wvdial" command as a user. "wvdial" and other dial scripts like ppp-go, pon etc which finally call up pppd, needs to be run with root privileges. Even kpppd of kde asks for root password if invoked by an user. pppd is an industry strength software, and it will *surely* not be tricked in to doing things, other than what is necessary by just marking the device "g+w"! There is no need to change the group for users to just enable dialing. This is okay for stand alone machines or small networks, but imagine a big office scenario where groups could be things like admin, accts, sales etc etc. Surely, no boss would accept change of group just to enable user-dial,at the cost of access to group specific data. Owner, group and permissions for the modem on my system is the default installed by debian. Incidentally, debian developers are very commited and mature and surely would not goof up on these small aspects. The default setup is: crw-r----- 1 root dialout 4, 64 Sep 6 11:20 /dev/ttyS0 This works perfectly fine for me. This has been the set up for all Linux boxes/ distros that I have used in the last four years+. No failures. I enable user-dial through a program called "sudo". Give it a try. For a stand-alone machine, you could dial with root privileges easily with "su", and "sudo" may not be needed at all. USM Bish
