"Torsten Behle" <tbehle@fcb-wilkens.com> wrote:

...

This is not totally correct. I had port 113 disabled (&logged) a long time. I got denys during FTP transfers nethertheless FTP worked. But there are some FTP-Servers, which need the port open, else no connection will be made.

I think the question also involved: If *yes*, how secure is it? (And: If *not secure*, is there a way to secure it?) Does anyone have information on that?

It's totally insecure. The results of an identd request are only as trustworthy as the host running the identd. And usually you can't trust any foreign host. Eilert -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Eilert Brinkmann -- Universitaet Bremen -- FB 3, Informatik eilert@informatik.uni-bremen.de - eilert@tzi.org - eilert@linuxfreak.com http://www.informatik.uni-bremen.de/~eilert/