Very Computer

Hi,

I tried to connect to a remote host from Linux box via modem and I
received some information from the host but I don't know what is it.
What should I expect when connecting to a dialup server ? PPP daemon ?
None of that info looks like PPP packets. I would like to know what kind
of information is exchanged between hosts right after detecting the
carrier. It doesn't look like binary data, it is more character -
based info (sometimes it has Login: and Password: strings in it, but
sometimes it's just something like WH48110, 53333/ARQ or UQKT2 and
hostname; sometimes nothing happens, the other side seems to be waiting
for me to initiate the exchange - depending on what dialup number I
use). If anybody could refer me to some info on what kind of protocol is
that, I would be most obliged.

Thank you,

v

PS. that info is somehow related to PPP setup program (pppcfg?) on Linux
- it also requires username and password. What is that ?

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Quote:> None of that info looks like PPP packets. I would like to know what kind
> of information is exchanged between hosts right after detecting the
> carrier. It doesn't look like binary data, it is more character -
> based info (sometimes it has Login: and Password: strings in it, but

Looks like a normal login: prompt.  This is probably a variation of
login(1).

Quote:> sometimes it's just something like WH48110, 53333/ARQ or UQKT2 and
> hostname;

Dunno, probably some PAP/CHAP authentication stuff.

Quote:> sometimes nothing happens, the other side seems to be waiting
> for me to initiate the exchange

Might be telnet, which expects to negotiate options before it sends
anything.

Quote:> - depending on what dialup number I
> use). If anybody could refer me to some info on what kind of protocol is
> that, I would be most obliged.

Well, I can put anything I want on a serial line.  Ask the
administrator of the system you are dialing.

Quote:> PS. that info is somehow related to PPP setup program (pppcfg?) on Linux
> - it also requires username and password. What is that ?

So, read the fine manual on PPP configuration.

--
Drive^H^Hnk safely!
Alex Verstak                 averstak at vt dot edu
1078 Ambler Johnston East             *ia Tech
Blacksburg, VA 24060-0022       Tel. (540) 232-1389

Sorry I missed the beginning of the string. However this sound like typical
symptoms of a system that is not using hupcl

stty(1)                                                             stty(1)

 NAME
      stty - set the options for a terminal port

 SYNOPSIS
      stty [-a | -g | options]

 DESCRIPTION
      stty sets or reports current settings of certain terminal I/O options
      for the device that is the current standard input.  The command takes
      four forms:
    hupcl (-hupcl)           Hang up (do not hang up) modem connection on
                             last close.