Pascal Bourguignon <firstname.lastname@example.org> wrote:
| email@example.com (Rob Warnock) writes:
| >  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 Warnock <firstname.lastname@example.org>
627 26th Avenue <URL:http://rpw3.org/>
San Mateo, CA 94403 (650)572-2607