On Fri, 19 Oct 2001 Kinjal Sonpal wrote:
Btw, for allowing all the users on my home PC system, chmoded /dev/modem to 777. Is this okay or is there some better
workaround? I did this becoz I read somewhere in our mail
archives that one shud not dial-up as root for the sake of security reasons.
PCQ has the following advice:
(Do all this as root.)
Step 1: Add a group called 'dialout'. Step 2: Add the required user accounts to this group. Step 3: Type the following commands:
$ chown root.dialout /usr/sbin/kppp $ chmod 4750 /usr/sbin/kppp
Step 4: Create a file /etc/kppp.allow and type the user names of users who are in the dialout group, each user name on a separate line.
The users should run /usr/sbin/kppp rather than /usr/bin/kppp. (This is assuming you have a typical Red Hat installation in which /usr/bin/kppp is a symbolic link to /usr/bin/consolehelper and the actual binary is /usr/sbin/kppp.)
Parul Mathur wrote on Thursday, October 25, 2001
PCQ has the following advice: (Do all this as root.)
[snip]
which /usr/bin/kppp is a symbolic link to
/usr/bin/consolehelper
and the actual binary is /usr/sbin/kppp.)
First of all, Parul, thanks for the clipping of the article from PCQ. I'll try it out today. And I'm also sorry for replying so late.
Any way, as few of us might remember that Parul and I had similar problem with pppd with exit error code 17. I think I've found the reason, as to why this happens. In all probability the ISP's ppp server is too slow to startup or it's heavily loaded with connection request.So when the pppd sends the link configuring packets they just get bounced from the remote modem, thereby giving a *serial loopback*. My ISP is roltanet and sometimes it's even worse than a connection to Caltiger. So this is what I and one of my friends believe. If someone on the list can confirm this, it'd be really good as far as the concepts of these things goes.
One easy soln. will be to slow down the speed at which pppd initially connects to the ISP, which we generally set to 57600. Setting this to some lower speeds helped me to connect to my ISP. However, I think there has to be some better soln. which we can set in /etc/ppp/options or something similar. It'll take some time to find out this.
Thanks for tolerating a long mail.
Regards, Kinjal Sonpal
Sometime Today, Kinjal Sonpal assembled some asciibets to say:
one of my friends believe. If someone on the list can confirm this, it'd be really good as far as the concepts of these things
use minicom to connect to your ISP and check manually what is happening.
One easy soln. will be to slow down the speed at which pppd initially connects to the ISP, which we generally set to 57600.
That's the modem data transfer speed (Physical Layer), not the pppd connection speed (Data Link Layer). They are different. If you connect manually, you'll see what is happening.
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Kinjal Sonpal -
Parul Mathur -
Philip S Tellis