On Mon, March 6, 2006 3:17 pm, Julian Elischer wrote:
> Cesar wrote:
>> I have some NAT boxes running FreeBSD, each of these boxes do NAT
>> for like 100+ people. Almost everyday my IPs got blacklisted because
>> of spam. I cant block the smtp traffic going out became some people
>> need it to send
On 3/6/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> > > ipfw add fwd xx.xx.xx.xx,25 tcp from 192.168.0.0/24 to any 25
> > > I got some matches in this rule when I try to send an email, but I
> > > didnt get redirected to my email server.
this is pretty easy with ipnat, this is for smtp
> > ipfw add fwd xx.xx.xx.xx,25 tcp from 192.168.0.0/24 to any 25
> > I got some matches in this rule when I try to send an email, but I
> > didnt get redirected to my email server.
>
> our email server needs the same rule, fwd 127.0.0.1 .. so that the
> incoming packet is not rejected.
>
Cesar wrote:
Hi,
I have some NAT boxes running FreeBSD, each of these boxes do NAT
for like 100+ people.
Almost everyday my IPs got blacklisted because of spam. I cant block
the smtp traffic going out became some people need it to send true
e-mails.
Are there any tool to detect/block
With the fwd rule, you can only redirect to 127.0.0.1 when you want your
machine to
intercept the connection.
I'd suggest putting a tcp proxy or smtp proxy listening on 127.0.0.1 port 25
that just forwards to the mailserver box.
Baldur
On Mon, Mar 06, 2006 at 09:39:46AM -0300, Cesar wrote:
> Hi,
Hi,
I have some NAT boxes running FreeBSD, each of these boxes do NAT for
like 100+ people.
Almost everyday my IPs got blacklisted because of spam. I cant block the
smtp traffic going out became some people need it to send true e-mails.
Are there any tool to detect/block those spams?
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