Hi,
for sendmail edit the sendmail.cf file directly, eg.,
O SmtpGreetingMessage=$j I'm not Sendmail; $b
- or - add
define(`confSMTP_LOGIN_MSG', `$j ObscureMTA; $b')dnl
to the sendmail.mc file and rebuild the .cf file.
And read http://www.sendmail.org/m4/tweakingoptions.html.
And don't know about leafnode, I'm using INN.
Rene
On Feb 25 Andreas M�ller wrote:
> Hi all,
>
> well I just want to know how to prevent my deamons from giving away their
> identity.
>
> I mean when telnetting to port 25 I get the response that sendmail version etc
> is running. How to deactivate this message? I do no want the peaople to know
> that I'm using sendmail or leafnode on port 119. Is it possible to hide this
> from public? Is it worth it anyway? I mean due to security, if someone does not
> know the software and version I'm running, it would be more difficult to find
> an exploit, am I right?
>
>
> Thanx in advance
>
>
> Andreas
>
>
--
UNIX was never designed to keep people from doing stupid things, because
that policy would also keep them from doing clever things. (Doug Gwyn)
