How does one find a copy of old KB articles?

I had this question after viewing Adding additional domain controllers for Exchange 2010.

My question is how can I read a copy of the KB article that the original link, http://support.microsoft.com/kb/316300 , pointed to:

There is a link to an old MS KB article, but the article is not present at that location to their site.

Here is the part of the information that I was interested in:
________________________________________
This is called suitability test that Exchange does and only the DC's that it finds capable or passing are included.

 Can you check Netlogon on DC1 please.

 dc2.domain.local      CDG 1 7 7 1 0 1 1 7 1
 DC1.domain.local      CDG 1 7 7 1 0 1 1 0 1

 Easy to read .... mark each on the top with one value at a time in the below
  (Server name | Roles | Enabled | Reachability | Synchronized | GC capable | PDC | SACL right | Critical Data | Netlogon | OS Version)
dc2.domain.local      CDG 1 7 7 1 0 1 1 7 1
DC1.domain.local      CDG 1 7 7 1 0 1 1 0 1


article at http://support.microsoft.com/kb/316300 will help you to understand what the event wants to convey.
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It was the failing link to the MS site that was supposed to give the information about the meaning of the CDG 1 7 7 1 0 1 1 7 1 event message and the  CDG 1 7 7 1 0 1 1 0 1 event message.
It would be nice to be able to see the contents of that KB article and nicer still to be able to see it linked from the answered EE question which gave a good answer to the question about the event messages.
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awed1Asked:
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Adam BrownSr Solutions ArchitectCommented:
Just google the KB article number and the most recent URL will be returned. https://support.microsoft.com/en-us/help/2618951/single-global-catalog-in-topology has what the original link pointed to. The link was about including Global Catalogs. The problem you have, though, is that netlogon isn't running on one of your servers, which is a bigger problem than just not having multiple GCs.
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Adam BrownSr Solutions ArchitectCommented:
For info, reading the 2080 event log data is a matter of referencing the heading and the number that matches it in the
DC1.domain.local      CDG 1 7 7 1 0 1 1 0 1
The headings
(Server name | Roles | Enabled | Reachability | Synchronized | GC capable | PDC | SACL right | Critical Data | Netlogon | OS Version)
 show what the values mean. For instance, the Servername matches DC1.domain.local, the Roles heading matches CDG, which stands for Configuration | Domain Controller | Global Catalog, so a Server with CDG listed under that heading holds all the necessary roles for Exchange to use it as a DC. You just follow the values from there to determine what is missing on the servers. Note that the PDC heading will probably always show 0, because PDCs don't exist anymore (Only PDC emulators, which don't fit the requirements of that check).
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awed1Author Commented:
Adam, Thank you. I was hoping that the article had a more detailed explanation of what the different parts of the readout itself meant.

(Server name | Roles | Enabled | Reachability | Synchronized | GC capable | PDC | SACL right | Critical Data | Netlogon | OS Version)
dc2.domain.local      CDG 1 7 7 1 0 1 1 7 1
DC1.domain.local      CDG 1 7 7 1 0 1 1 0 1

For instance what does 7 mean, and what does 0? What does 1 mean? etc. For that matter what does Critical Data mean? etc.
Fortunately, there is no pressing issue.
Whatever had driven me to the original EE question has been resolved, but I appreciate your quick and informative response.
Thanks again, B.
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Adam BrownSr Solutions ArchitectCommented:
The headings mean the following:
Enabled: Is the DC enabled in the AD Topology (Does it actually exist)
Reachability: Can Exchange reach the server
Synchronized: Is the DC synchronized with the latest AD schema version
GC capable: Is the DC capable of holding a global catalog
PDC: Is the DC a PDC or BDC (always 0 now)
SACL Right: Does the Exchange server have necessary permissions according to the DC
Critical Data: Does the server have all AD information and data critical to Exchange
Netlogon: Is netlogon service running
OS Version: Is the OS version of the DC compatible with Exchange

The values are a scoring system. The 7s represent values that, if they aren't present, would completely negate a DC's viability. Note that there are 6 values that can be either 0 or 1. If all of those are 1 and all the 7s are 0, that DC wouldn't be used by Exchange if even a single 7 was working on another DC. But the system allows a DC to be used if PDC is 0 only if there is not another DC with all the same values and PDC equal to 1. Does that make more sense?
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awed1Author Commented:
Thank you!
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