Re: [SLUG] Telnet and the Internet

From: Bill Triplett (btt@nethouse.com)
Date: Tue Feb 05 2002 - 06:00:27 EST


On Mon, Feb 04, 2002 at 09:47:27PM -0500, Paul M Foster wrote:
> On Mon, Feb 04, 2002 at 07:53:16PM -0500, Russ Herrold wrote:
>
> > On Mon, 4 Feb 2002, Paul M Foster wrote:
> >
> > > Anyone have any enlightening info?
> >
> > As a BOFH, this is a safe rule to live by: -- 80% of the time,
> > DNS is not doing what you expect.
> >
> > Another gem: tcpdump is your friend -- and it can monitor
> > ppp0
> >
> > As I recall ppp can set debugging up to kdebug 7, and debug 7
> > -- which show everything but the color of your eyebrows, into
> > /var/log/messages
> >
>
> Good, but that doesn't answer the question of why _telnet_ is making
> pppd dial out rather than simply responding itself. (BTW, after pppd
> dials out, telnet responds with a prompt. Go figure.)

Sure, your /etc/hosts file contains mapping for IPv4 addresses, but
probably not for IPv6. As Russ suggested, use tcpdump to see if
queries are originating for AAAA records from the machine you are
telnetting into.

>
> Paul



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