From: Mark Goodge (markgood-stuff.co.uk)
Date: Tue May 13 2008 - 14:47:56 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

mouss wrote:
> Mark Goodge wrote:
>>
>> Because among the users sending mail via his wireless network will be
>> those with infected computers, or worse. Since he has no ability to do
>> anything about this after the event (since any customer with a
>> spamming PC will have left the hotel by the time the complaints start
>> coming in), the only way he can both protect himself and act as a
>> responsible netizen is to proxy port 25 and filter outbound traffic to
>> ensure that none of it is spam/viruses/etc.
>
> redirecting traffic without the authorization of the user has a name:
> hijacking.

Only if they don't know it's being done. If you're providing a wifi
hotspot to customers of a hotel, then you just inform them that traffic
will be proxied. If they don't like that, they don't have to use it. 99%
of them won't care.

>> What the OP appears to be looking for is a solution to the problem of
>> users trying to authenticate on a port that they should not
>> authenticate on, in order to allow them to send mail anyway. If the
>> answer is "It can't be done with Postfix", then fine - that's an
>> appropriate answer on this list (although I'm pretty sure it's the
>> wrong one). But telling him that he shouldn't be doing that isn't an
>> appropriate answer, because this isn't a list for discussing best
>> business practice for wireless hotspot operators, it's a list for
>> getting practical help with using Postfix. Advice which addresses the
>> technical issue is more likely to be helpful than advice which
>> attempts to address the marketing issues.
>
> I am sure OP can manage to do whatever he wants, but I confess that I do
> not understand what he wants to do.

In which case, maybe you're not best placed to offer any useful advice.

Mark

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]