[Gllug] Virus on Linux/Mac

[Chris Bell]

On Fri 21 Sep, t.clarke wrote:
> 
> On the subject of spambots  -if ISPs were forced to:
> a) block outgoing smtp port connections from all machines with dynamic IP
> addresses
> b) bock outgoing smtp port connections from all machines with static IP
> addresses that havn't registered with them as a mail-sender
> 
> that might reduce the volume of spam considerably.
> 
> 
> Seems to me that home  and 'small' users with dynamic IP addresses can
> easily enough send their mail via their ISP  rather than by direct SMTP.
> 
> 
> Tim

   My ISP provides optional spam filters on all incoming mail, and monitors
all outgoing mail, that uses its smarthost, but that assumes that customers
use a demon.co.uk address. Commercial customers would not usually wish to do
that. No ports are blocked, and you may obtain a fixed IP, but no DNS
pointer is supplied for home/office customers using demon.co.uk.
   It is however possible to obtain an independant domain name and organise
a DNS pointer to the fixed IP address.
   This is of little interest to a compromised machine, if there is a way it
will probably be well known.

-- 
Microsoft sells you Windows ... Linux gives you the whole house.
Chris Bell

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