Hello Jaime,

----- Original Message ----- 
From: "Jaime Nebrera Herrera" <[EMAIL PROTECTED]>
To: "Victor Berdin" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
Sent: Wednesday, July 02, 2003 5:22 PM
Subject: Re: [leaf-user] Safe transparent proxying via DS1.02 and
Squid


[snip]

>   Why do you need the transparent proxy? Do you need a reverse proxy
to speed
> up web access (local cache), do you need load balancing, do you need
extra
> protection?

Yes, I'm using it as a reverse proxy.

>   Do you run some kind of webmail? If the problem is spam related,
most
> probably your users are using your wemail system to send spam. In
that case,
> a proxy wont help you at all. You have to educate your users, impose
some
> restrictions (like number of emails a day a user can send) or
improve your
> user selection. Still, nothing to do with the proxy.

No that is not that case at all. My internal net lay dormant as my box
kept
on receiving and automatically forwarding junk packets.

>   But I believe most probably you have been banned because of an
open proxy.
> In this case, your proxy does its work even with urls that you dont
control
> and this is bad. You have to configure the proxy to allow petitions
only for
> those domains you control and that are BEHIND the reverse proxy.
>
> > http://www.fr2.cyberabuse.org/?page=abuse-proxy
>   Reading this page clarifies ALL. Now my guess was right. You have
not been
> banned because of spam but because you have an OPEN RELAY proxy.
Configure it
> properly.

Perhaps, but an e-mail from my ISP details that my box was used to
send
tons of spam. :o(

>   For local users I dont recall right now if SQUID allowed for
different
> behaviour in different interfaces. If yes, configure it properly, if
not, try
> to run two instances of squid or use a different box.

It is highly possible that I'm not setting it up properly. And yeah,
the DOCs
are my friends. Plus I was so harsh/excited to place the box in the
jungle
right away soon as I got it up, without doing security tests. :o(

I learned my lesson, the challenge now is to fix it.

Thanks for your reply, Vic



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