Re: tlug: PAP and CHAP

["Alan B. Stone" <stoneab@example.com>]

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tlug note from "Alan B. Stone" <stoneab@example.com>
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Dennis,

Thanks.  I will give it a try.  Right now I click the activate button
which in is the netcfg window of Red Hat Linux.  However, so far it
doesn't work with connections that utilize PAP.  Again thanks, I will
give it a try.

Blaine

Dennis McMurchy wrote:
> 
> --------------------------------------------------------
> tlug note from Dennis McMurchy <denismcm@example.com>
> --------------------------------------------------------
> On Sun, 11 May 1997, Alan B. Stone wrote:
> 
> > I'm thinking that
> > within the RedHat netcfg, not only can you have it send whatever you
> > type in, but I'm wondering if you can indicate a file to use for
> > connection?  Either way, thanks.  I will give it a try.  I'll let you
> > know what happens.
> 
>   Sounds to me (forgive me if I'm wrong) that you're still thinking
> in terms of somehow manually logging.  I would think what you want to
> do is to click once wait thirty seconds and have a ppp connection to
> your ISP all ready to use for sendmail, Netscape, telnet, or whatever.
> 
>   What I do may not be elegant, but should work with any Unix-like
> OS (does work with Slackware 3.1 kernel 2.0.26).
> 
>   1. My dial-in script and other net stuff is all one click on a
>      fvwm window manager menu, but doesn't have to be.  In fact, I was
>      executing everything manually at the prompt, until I set up one
> of my machines for a group of ordinary users to use recently.  I must
> admit, it's a lot nicer having everything on the menu.
> 
>   2. The dial-up script I use:
> 
> /usr/sbin/pppd connect '/usr/sbin/chat -v "" ATDT7241745 CONNECT "" \
>  ' /dev/cua1 38400 -detach debug crtscts modem \
>  defaultroute noipdefault user denismcm  &
> 
>   This will work for you if you change the phone number, possibly
> the /dev/cua1 (if your modem is not on that device - could be cua0,
> say, on your system), possibly the speed could be 19200 if you have
> a 14.4 modem, and of course, the username (denismcm in my case).
> Every one of those quotation marks and slashes is _essential_.
> Also, of course, depending on your distribution, pppd and chat may
> live in different directories.
> 
>   This script assumes there is a /etc/ppp/pap-secrets file (such as
> Jim or Andrew mentioned) that looks like this:
> 
> #client         server          secret
> denismcm         *              MyPassword
> 
>   3.  It generally takes about 25 seconds for the connection to be
> made and the ppp link negotiated.  The -v switch after /usr/bin/chat
> makes a pretty detailed record of these negotiations between the two
> machines which is logged in /var/adm/messages, and can be very useful
> in debugging the connection if there are any problems.  It will also
> record your dynamically allocated dotted quad internet address, which
> you'll need should you want to fancy things like putting your machine
> on the net and so on.  Once you have everything working, you may want
> to turn off the -v switch.
> 
>   4.  You can verify that the connection is up with this one-liner:
> 
>                 /sbin/ifconfig
> 
> which will display something like this:
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
>           UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
>           RX packets:150 errors:0 dropped:0 overruns:0
>           TX packets:150 errors:0 dropped:0 overruns:0
> 
> ppp0      Link encap:Point-Point Protocol
>           inet addr:202.243.60.70  P-t-P:202.243.60.4  Mask:255.255.255.0
>           UP POINTOPOINT RUNNING  MTU:1500  Metric:1
>           RX packets:8 errors:1 dropped:1 overruns:0
>           TX packets:11 errors:0 dropped:0 overruns:0
> 
> If your ppp link is not up, of course only the lo section displays.
> Or you can just watch the display in the 'pppcosts' window, if you have
> that running.  I recommend pppcosts to anyone who has to pay local phone
> charges.  It keeps a (very accurate) cumulative tally of your total
> online time to date and provides a real-time one-line display of how
> long you have had the current connection up.  The window looks this
> when you're online:
> 
> ONLINE: 00:07:17 (3 units, JY 30)
> Total online: 08:23:34 (196 units, JY 1960)
> ONLINE: 00:03:04 (2 units, JY 20)
> 
>   The top line is the last session, the middle line is total to date,
> and the bottom line is the current session.  I did the modifications
> for NTT rates myself and they are now part of the distribution.
> Unfortunately, I don't seem to have a useful URL for this, but it's
> just a little file (18K or thereabouts), so I could easily make it
> available through email or on my website, if you can't find it.  I love
> it.
> 
>   5. I use sendmail for outgoing mail.  sendmail -q  will flush out
> whatever is waiting to go out once your ppp link is up.  You could
> set things up to automagically flush the mailqueue every time you go
> on line, but I don't bother myself.  I explicitly invoke sendmail.
>   I sometimes use a little script called peek.mailqueue to make sure
> everything has gone out:
> 
> ls -l /var/spool/mqueue/*
> 
> If you ever need to operate directly on the queue,of course, you can
> do so as root.  Nice for those times when you really were a little too
> acid in your email.
> 
>   6. I used to use an extraordinarily complicated script written using
> Expect to grab my mailbox, until I discovered popclient, which works
> very nicely and is standard fare (at least with Slackware - come to
> think of it the latest Slackware popclient is buggy - you'd want the
> older one - version 2.21, I think).  This is my mailgrabbing script:
> 
> /home/denisbin/pop/popclient -3  -v -u denismcm -p MyPassWord -o /home/denis/internet/postbox popmail.gol.com
> cat /home/denis/internet/bell
> 
> This gets my mailbox from the ISP and drops it into
> /home/denis/internet/postbox for me, deleting the messages from my
> box at the ISP, and then cat's a   (which rings the bell on my terminal -
> there must be a more elegant way to do this though -  letting me know the
> download is finished).
> 
>   7. If you do a lot of ftp'ing or telnet'ing or want to put your machine
> on the net, I have some handy scripts for that too, which I could share
> with you.
> 
>   8. I find that for grabbing the small amounts of news I want to read
> that the program called 'suck' works really nicely.  It's on the archive
> CDs and sunsite and so on.  Works very well for what I do.
> 
>   9. And finally, you want to shut down your link sometimes ;-).
> I use a little script like this:
> 
>   #!/bin/sh
>   #this program was clipped out of the linux ppp-howto file
>   DEVICE=ppp0
>   #
>   # If the ppp0 pid file is present then the program is running. Stop it.
>   if [ -r /var/run/$DEVICE.pid ]; then
>           kill -INT `cat /var/run/$DEVICE.pid`
>   #
>   # If the kill did not work then there is no process running for this
>   # pid. It may also mean that the lock file will be left. You may wish
>   # to delete the lock file at the same time.
>           if [ ! "$?" = "0" ]; then
>                   rm -f /var/run/$DEVICE.pid
>                   echo "ERROR: Removed stale pid file"
>                   exit 1
>           fi
>   #
>   # Success. Let pppd clean up its own junk.
>           echo "PPP link to $DEVICE terminated."
>           exit 0
>   fi
>   #
>   # The ppp process is not running for ppp0
>   echo "ERROR: PPP link is not active on $DEVICE"
>   exit 1
> 
>   Gee, I had forgotten it has so many lines.  As it says, it's from
> the ppp-howto.  Works just fine.
> 
>   I'm sure I've forgotten something critical, but this will get you
> started anyway.
> 
>   Enjoy,
> 
>   Dennis McMurchy,
>   Tojinmachi, Fukuoka
> 
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