nullmailer - Sending failed: Could not exec program
cl at isbd.net
Sun Jun 22 16:23:33 UTC 2014
On Sun, Jun 22, 2014 at 10:37:29AM -0400, Gene Heskett wrote:
> On Sunday 22 June 2014 06:55:59 Graham Watkins did opine
> And Gene did reply:
> > On 22/06/14 11:44, Chris Green wrote:
> > > On Sat, Jun 21, 2014 at 05:38:13PM +0100, Graham Watkins wrote:
> > >> On 21/06/14 16:47, Gene Heskett wrote:
> > >>> On Saturday 21 June 2014 11:33:01 Graham Watkins did opine
> > >>> And Gene did reply:
> > >>>
> > >>>
> > >>> That is an outside address. Does your dns resolver know who
> > >>> ntlworld.com is?
> > >>
> > >> Haven't the foggiest. How would I check?
> > >
> > > Say 'host ntlworld.com' and see if it finds it.
> > Hi Chris
> > host ntlworld.com brings up the following (which was not exactly what I
> > was expecting):
> > host ntlworld.com
> > ntlworld.com has address 188.8.131.52
> Security lesson time:
> This is an "outside" address. Anyone in the world can find it, and exploit
> it if possible. And an unpatched windows machine will be rooted by someone
> in eastern Europe, or even stateside, often within 30 seconds of plugging
> in the CAT5 cable. Linux machines are far better, but not invincible.
Er, what? ntlworld.com *has* to be what you call an 'outside'
address, that's how it works, otherwise you wouldn't be able to send
E-mail to anyone with a <someone>@ntlworld.com address.
... or isn't that what you were trying to say?
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