feature sugest to reduce DNS traffic

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feature sugest to reduce DNS traffic

Miguel Angel Mtz
Hello, I think that ASSP can reduce his CPU load and DNS traffice with this feature

If we enable a PTR we can ask the remote server for the MX, and SPF records and save them in a CacheFile just like the RBLCache and in this case if we enable SPF, PTR and MX we just ask 1 time to the remote DNS for this information and not 3, and if we recieve another mail from the same domain we can look on our cache for their records, for the period of time that we indicate to store this cache records.

Regards!


       
       
               
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Re: feature sugest to reduce DNS traffic

Fritz Borgstedt

>Hello, I think that ASSP can reduce his CPU load and DNS traffice
>with this feature

Thanks, was planned.


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Re: feature sugest to reduce DNS traffic

brougham Baker
From: "Fritz Borgstedt" <[hidden email]>

> >Hello, I think that ASSP can reduce his CPU load and DNS traffice
> >with this feature
>
> Thanks, was planned.

That's a cool idea.

Won't work in all instances though- my PTR is hosted by my ISP but my
forwards/SPF are handled by me and my secondaries.

Anything that makes ASSP a better net-citizen is a good thing.

Bro



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Re: feature sugest to reduce DNS traffic

Fritz Borgstedt

>That's a cool idea.
>
>Won't work in all instances though- my PTR is hosted by my ISP but my
>forwards/SPF are handled by me and my secondaries.
>
>Anything that makes ASSP a better net-citizen is a good thing.

I think, you misunderstood something.


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Re: feature sugest to reduce DNS traffic

brougham Baker
From: "Fritz Borgstedt" <[hidden email]>
>
> >That's a cool idea.
> >
> >Won't work in all instances though- my PTR is hosted by my ISP but my
> >forwards/SPF are handled by me and my secondaries.
> >
> >Anything that makes ASSP a better net-citizen is a good thing.
>
> I think, you misunderstood something.

How-so?

PTR records are for reverse DNS- going from an IP address to a domain name.
These are handled by my ISP as they don't delegate such a small block- those
DNS server addresses are- dns2.as12513.net, dns1.as12513.net, and
dns1.eclipse.net.uk

My forwards, MX and SPF DNS records are handled by ns0.brougham.info,
ns0.gradwell.com, ns1.gradwell.net and ns2.gradwell.net. these DNS server
are spread over 3 continents.

Bro



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Re: feature sugest to reduce DNS traffic

Fritz Borgstedt

>How-so?
>
>PTR records are for reverse DNS-
We were discussing future caching of the PTR, MX, A, SPF queries which
ASSP does today similar to the caching of RBL,URIBL and RWL already
implemented.
I do not understand what
"Anything that makes ASSP a better net-citizen is a good thing" has to
do with that.


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Re: feature sugest to reduce DNS traffic

brougham Baker
From: "Fritz Borgstedt" <[hidden email]>
> >How-so?
> >
> >PTR records are for reverse DNS-
> We were discussing future caching of the PTR, MX, A, SPF queries which
> ASSP does today similar to the caching of RBL,URIBL and RWL already
> implemented.

Yes, in other words minimising the number of DNS lookups that ASSP has to do
by combining them into as few queries as possible.

> I do not understand what
> "Anything that makes ASSP a better net-citizen is a good thing" has to
> do with that.

By further reducing the number of DNS queries that ASSP does. VeriSign is
spending 1 billion USD on beefing up the root DNS servers
http://www.theregister.co.uk/2007/02/09/verisign_titan_security/ Anything
reducing the number of queries is a good thing.


Bro



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