Subject: Re: Newbie question - talking with lisp
From: rpw3@rpw3.org (Rob Warnock)
Date: Fri, 04 Nov 2005 21:50:10 -0600
Newsgroups: comp.lang.lisp
Message-ID: <ouSdnVR-n9FvtvHenZ2dnUVZ_tidnZ2d@speakeasy.net>
Pascal Bourguignon  <spam@mouse-potato.com> wrote:
+---------------
| rpw3@rpw3.org (Rob Warnock) writes:
| > [1] You can certainly use TCP sockets, but then any system anywhere
| >     might acess your Lisp process, so you'll need some kind of
| >     authentication. ...
| 
| You can listen only on 127.0.0.1, and therefore ignore any connection
| comming from other computers.
+---------------

True, but you still need to be careful if "your" computer is really
a shared server with other users on it [such as a web host].

And you also have to watch out for programs such as "ssh" which
support "tunneling" remote TCP connections to local 127.0.0.1 targets.
[Though on a truly single-user system this can also sometimes be a
*good* thing, as with X Windows forwarding, for example.]


-Rob

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