Re: try to create manually updating RBL on 2000 DNS
- From: "Herb Martin" <news@xxxxxxxxxxxxxx>
- Date: Sat, 23 Apr 2005 21:08:47 -0500
"Jeremy Sun" <binmann@xxxxxxxxxxx> wrote in message
news:uI9BFmwRFHA.3496@xxxxxxxxxxxxxxxxxxxxxxx
> I have to admit that I have no idea how to create a realtime black lists
or
> what an RBL really is.
Then you problably do NOT want to "create" one but
rather use and existing one.
While it is possible to create your own, you will likely
do better by using a (semi-)professionally maintained
list (or multiple lists.)
> I have done the following:
>
> Part 1
> 1) Set up DNS on a standalone 2000 server
> 2) Create a Forward Zone and name it say, "blackhole"
Ok, but a more normal name would be Blackhold.local
or even RBS.YourDomain.Com (a child of some other
domain)
> 3) Download a zone list from the www.blackholes.us
> 4) Update the entries into c:\winnt\system32\dns\blackhole.dns according
to
> the list by a simply cut and paste
> 5) Refresh the zone
> 6) Everything looks good
Then you do know how to create one <grin>
> Part 2
> 1) Update my email software who was previously working with 3 others
public
> rbl list
> 2) remove 1 least-used public list and add my DNS (the same computer so I
> just type in 127.0.0.1)
No, you need to add that ZONE-domain name you used
above (BlackHole or a better name as per my suggestion).
The SMTP software will look up the IP + .ZoneName
And if this zone you created is NOT properly delegated
on the Internet/internetwork (like your BlackHole and
my example blackhole.local) then you must ensure that
your SMTP server uses the same DNS as holds the zone
(or one that will find the zone through delegation, forwarding,
etc.)
> 3) unblock (by name) certain rubbish mail that I am sure their IPs are on
my
> new DNS
I don't understand why you would "unblock ... rubbish" and not
the other way around, e.g., unblock good stuff, or block rubbish.
> ... and these rubbish mail get through, ignoring my new settings
Normally the presence of the record in the blackhole
list is what causes your SMTP to block it. (This depends
a BIT on the address-type of record and how sophisticated your
SMTP.)
> Now suppose that I did not do anything wrong in Part 2.
Actually it is part 2 where you made at least one mistake
and may have that other (unblock) misunderstanding.
> Question
>
> 1) Am I an idiot to assume the "RBL base on DNS theory" is equal to "RBL
is
> the same as DNS servicing difference clients"?
It I understood the above sentence I might be able to
answer <grin>.
But taking a guess and cleaning it up a bit: RBL is based
on DNS theory, but uses DNS in ways that are not common
outside of RBL, perfectly legal ways, but nevertheless quite
odd from a "classical DNS perspective."
The same can be said for Active Directory and DNS if you
take out the word "quite" and put in "a bit" (uncommon that is.)
> 2) Did I do something wrong in Part 1?
Probably not other than choosing a poor zone name
which may lead to misunderstandings AND the actual
error in part 2.
> 3) Any information you can point me to, related to RBL and Windows DNS
that
> is NOT involving with Exchange server?
Why are you trying to run your "own RBL zone"?
Seriously, to make this work you will have to do
constant work on it.
I would understand better if you were just going to
add a FEW additional blocks that don't already
appear in your other (commercial/public) RBL
zones.
> Many many thanks,
> Jeremy
>
>
.
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