Sandy...
Uptime should be 100% on DNS servers. It's 2008! This should not even
be a consideration. No matter how wonderfully they work, a
high-traffic mail server will _always_ be slowed down by using DNS
servers over a WAN.
In a perfect world this would be correct, but as you already know from
I have to say I also agree with Sandy. While recommending a free external
DNS solution like OpenDNS is an easy fix for many less technical customers,
as Sandy has pointed out it is not the best solution.
1. The customer has no control over its availability. With a free external
DNS solution
In a perfect world this would be correct, but as you already know
from working in the IT profession, no server, DNS or otherwise has
an uptime of 100%.
A single physical DNS server may go down, sure, whatever. The DNS
config (redundant DNS servers or load-balanced on a virtual IP) used
by
There is also the question of loss of connectivity from point A to OpenDNS
server #1 which is all that you have if you setup Declude to use a Single
Source DNS server. If anywhere in that path there is an outage you will
have no DNS.
Far better to learn a little about DNS and run your own. Then
Sandy, I agree with you. While recommending OpenDNS is certainly painless
and easy for the support desk, it is certainly not the best solution for an
in-house mail server - especially those running anti-spam products.
Just my .02
~Patrick
-Original Message-
From: [EMAIL PROTECTED]
Sandy,
A single physical DNS server may go down, sure, whatever. The DNS
config (redundant DNS servers or load-balanced on a virtual IP) used
by a mail infrastructure _must_ be 100% as available as the
mailservers themselves. I'm certain that everybody on this list who
runs a hosting provider or
Anyone using Project Honeypot as a spam database lookup?
If so, what do you have in your declude configuration for the setup?
Thanks
David
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Thanks Kevin. I will be sure to pass this info on to the customers that i speak
with.
From: Kevin Bilbee [EMAIL PROTECTED]
Sent: Thursday, October 09, 2008 2:19 PM
To: declude.junkmail@declude.com
Subject: RE: Re[6]: [Declude.JunkMail] DNS Changes
I
I have a suggestion since DNS is so critical to Declude. A secure recursive
bind implementation can be setup in less than 5 minutes.
Kevin, thank you very much for proving the absurd ease with which this
one (of many) DNS servers can be set up for this purpose, and to
everybody else who
I will admit, Bind is not the easiest thing to setup if you are a new admin.
The first time I tried to setup bind it took me about 3 hours, but to me the
benefits outweigh commercial packages. Including reading on-line
documentation and eliminating one error at a time, making sure it was
secure.
Yeah, that would surprise me utterly, since they wouldn't be able to
do _anything else_ with said servers that would lead them to believe
they were suitable for Declude's use.
I worked for an ISP for a long time before joining Declude. DNS
servers are NOT useless without the recursive
Not to be picky but run this query instead
nslookup -q=mx gmail.com. 1.2.3.4
If you do not include the dot it may append the default domain for the
windows box to the query. If there is no default domain specified then all
is good. But the extra do will always work.
Kevin Bilbee
Thanks, K. ipconfig from a mailserver that can surf the net is another duh
quickie... .
--Sandy
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I am out of the office until Wed. Oct 19.
Thank you for your message, I will get back to you as soon as I can after I
return.
John Richardson
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