ssh over PPP; was Re: [TriLUG] rp3 on RH7.1___Dial-up config Script activation via sshd command prompt:call me lazy

[Michael Mueller]

Any thoughts on this problem would be appreciated.  It seems minor,
but I'd like to be able to solve all minor problems.

Objective:
PPP between two local machines using null modem connection.

Setup:
1. kernel compiled with PPP support; new kernel ported to all
machines and regression tested OK
2. 50' null modem built and tested using mgetty on on one side and
windows-based terminal emulator on the other
3. cable used to connect dev0 on /dev/ttyS0 and test1 on /dev/ttyS0;
mgetty deactivated in /etc/inittab on test1
4. entered: pppd -detach lock crtscts <local:remote> /dev/ttyS0
56000 on dev0 and test1

Problem:
on test1 I got the 2-line message:
pppd: The remote system is required to authenticate itself but I
pppd: couldn't  find any suitable secret (password) for it to use to
do so.

- I can force this message on dev0 by entering "pppd auth".
- I can eliminate this message on test1 by entering "pppd noauth"
- the files /etc/ppp/chap-secrets and /etc/ppp/pap-secrets have no
entries (both machines) which explains why the message above is
displayed when the "auth" option is used
- /etc/ppp/options has no "auth" option in it (both machines) that I
can find
- logged in as root; there is no ~/.ppprc file that could contain
the "auth" option
- both machines are using pppd version 2.3.10

----- Original Message -----
From: "Michael Mueller" <bhu5nji at yahoo.com>
To: <trilug at trilug.org>
Sent: Friday, December 07, 2001 6:25 PM
Subject: Re: [TriLUG] rp3 on RH7.1___Dial-up config Script
activation via sshd command prompt:call me lazy


: Can't get through the firewall if they won't let me through.
Target
: firewall owner is going through M&A and things are not  "normal"
for
: now.  Alternative is to set up PPP and then go ssh over that
: connection.
:
: Trivial?  Maybe if you've been there, done that, and got the
: t-shirt.  Probably not for me.
:
: I've SSH2 working pretty well over a LAN so getting it work over a
: PPP IP connection should be straight forward.
:
: I've also have mgetty working on ttyS0 for direct logins.
:
: Getting PPP to work over a null modem looks easy enough.  Just
have
: to go get a 50' cable and a null modem adapter.
:
: Getting PPP to work over a dial-up connection requires access to
two
: POTS lines and two modems.  I have 1 of each right now.  The
scripts
: look reasonable, but it's been years since I doinked a modem (I've
: been lulled into stupidity by using windoz).
:
: Then there's my obsession with reading 100s of pages of HOW-TOs
: before issuing a handful of commands.  The PPP-HOWTO looks well
: written.
:
: The nifty thing about your response is that you indicate ssh over
a
: PPP is correct and trivial.  Knowing that helps a lot.
:
: Mike
:
: ----- Original Message -----
: From: "Jon Carnes" <jonc at nc.rr.com>
: To: <trilug at trilug.org>
: Sent: Thursday, December 06, 2001 3:47 PM
: Subject: Re: [TriLUG] rp3 on RH7.1___Dial-up config Script
: activation via sshd command prompt:call me lazy
:
:
: : What sort of problems are you having?  What kind of corporate
: firewall are
: : attempting to penetrate?
: :
: : Are you going to dial in now (authenticate via dialup) and then
: ssh across
: : the dialup connection?  That seems pretty trivial... or am I
just
: too sleepy
: : to notice what is really going on.  I guess you could tag me as
: "sleepy"...
: :
: : Jon
: : ----- Original Message -----
: : From: "Michael Mueller" <bhu5nji at yahoo.com>
: : To: <trilug at trilug.org>
: : Sent: Friday, December 07, 2001 1:27 AM
: : Subject: Re: [TriLUG] rp3 on RH7.1___Dial-up config Script
: activation via
: : sshd command prompt:call me lazy
: :
: :
: : > Daniel,
: : >
: : > Or should I call you "Lazy" :-)? I can't offer any advice to
you
: : > right now, but I do share your goal, and I have a deadline to
: reach
: : > the goal.  I was planning to access some remote boxes using
SSH2
: and
: : > a "managed" port of entry from the Internet through a
corporate
: : > firewall.  Yesterday, I learned about some "delays" in this
plan
: and
: : > was advised to consider dial-up access.  Now I must figure out
: using
: : > ssh over PPP over a dial-up connection.
: : >
: : > I ordered a second POTS line today to support this effort.  It
: : > should be in on 12/13.  I think I'll do PPP over a null modem
: : > between local machines until the POTS line is installed.
: : >
: : > I'll keep you posted on my progress and what I learn along the
: way
: : > if you'd like me to.
: : >
: : > Mike
: : >
: : > ----- Original Message -----
: : > From: "Daniel Jerome" <me at danjerome.com>
: : > To: <trilug at trilug.org>
: : > Sent: Monday, December 03, 2001 8:38 PM
: : > Subject: [TriLUG] rp3 on RH7.1___Dial-up config Script
: activation
: : > via sshd command prompt:call me lazy
: : >
: : >
: : > : I am having trouble figuring out how to activate the ppp0
(Cu
: 56k)
: : > via the
: : > : command line utilizing the config information which I
created
: with
: : > the
: : > : Dial-up Config tool on my Redhat 7.1 box.  I would like to
ssh
: : > locally into
: : > : my box which is running ipmasq for my network via ipchains.
I
: : > have too many
: : > : machines for one home office so I would like to run all my
: Linux
: : > boxes via
: : > : sshd from my fancy new comfortable Dell Wintel Box on
: occasion.
: : > This puppy
: : > : came with a fat screen which I can run several ssh client
: : > instances and get
: : > : my regular work done at the same time.  I am tired of
wheeling
: : > around and
: : > : flipping on monitors all the time.  All I ever do is open up
: the
: : > KDE
: : > : terminal anyways so I am trying to make things easy on
myself
: by
: : > logging in.
: : > : Call me lazy.
: : > :
: : > : _______________________________________________
: : > : TriLUG mailing list
: : > : http://www.trilug.org/mailman/listinfo/trilug
: : >
: : > _______________________________________________
: : > TriLUG mailing list
: : > http://www.trilug.org/mailman/listinfo/trilug
: :
: : _______________________________________________
: : TriLUG mailing list
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:
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