Re: Telnet

[Kevin Colby <kevinc grainsystems com>]

David B Swann wrote:
> 
> Your ISP may have something that prevents a remote site from logging into
> your box.  Have you tried something like "ping" from both side to verify
> the links are OK?  I would also try using traceroute to make sure the
> routes are ALL OK.

*nod*
I'd be willing to put money that your ISP blocks incoming connections
from "the outside world" to dial-up IPs.  In that case, contact your
ISP and ask to talk to the routing/firewall people.  Explain your
situation and they might be willing to help.  They might do this on
purpose though, so that you can't setup web servers and such.  I've
always made sure that my ISPs will let me do anything, including
reselling the bandwidth if I felt like it.  Then you can't go wrong.
;^)

	- Kevin Colby
	  kevinc grainsystems com



> On Fri, 26 Feb 1999, Brian Clark wrote:
> 
> >
> > Hi guys:
> >
> > I have an easy one for you all, I'm sure, but I can't seem to find an
> > answer anywhere in the HOW-TOs.
> > I set up an account for a user, and I want to be able to let them telnet to
> > my linux machine.
> >
> > I Dial-in to an ISP via PPP in linux, and my IP address is a dynamic IP
> > address.
> >
> > When I, or this user, try to telnet to my linux machine, I get "connection
> > lost."
> > We are telneting to my machine's ISP assigned dynamic IP address (such as
> > user60.XXX.XXX, and I have also tried the exact numerical address).
> >
> > Is there something that I am missing here? I'm not trying to set up a
> > dial-in server, I just want to be able to telnet to my Linux box when it is
> > connected to the Internet.
> >
> > Thanks -
> >
> > Brian
> >
> > P.S. I get the feeling that there is a security related reason as to why
> > this isn't working (duh?), so what are the pitfalls if this is enabled? :)