Re: [Exim] SMTP banner

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Szerző: Dave C.
Dátum:  
Címzett: Derek Broughton
CC: exim-users
Tárgy: Re: [Exim] SMTP banner
On Wed, 2 Jan 2002, Derek Broughton wrote:

> Peter Radcliffe wrote:
>
> > Philip Hazel <ph10@???> probably said:
> >
> >>Does anybody have any strong feelings about what the default banner
> >>should be? (Any one site can of course change it, by setting
> >>"smtp_banner".) It does seem silly to output the compile number and
> >>date/time, now I come to think about it. Do any of these find favour?
> >>
> >>smtp_banner = Exim ready
> >>smtp_banner = Exim ESMTP server ready
> >>smtp_banner = ESMTP server ready
> >>smtp_banner = OK
> >>smtp_banner = ESMTP session initiated
> >>
> >>Or something else?
> >>
> >
> > I'd vote for;
> >
> > smtp_banner = $primary_hostname ESMTP $tod_full
> >
>
> I think you need to, at least, allow for $primary_hostname to be
> omitted. I'm not a fan of security by obscurity either, but I have


Keep in mind this is only the *default* - individual sites will still be
able to set it to anything that want.

> worked at a number of places (a bank comes to mind) where policy states
> that no identifying information can be displayed in a welcome message
> (in fact for dialup logins, you don't even GET a welcome message, you
> have to know what to type in a blank screen). In such a case, you'd
> need to drop the hostname just to please the bean counters.
>
> derek
>
>
> --
>
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>


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