[ntp:questions] Failure modes on Windows Server 2008 R2 64-bit

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Wed Aug 14 22:40:53 UTC 2013

Charles Swiger wrote:
> I wonder how many of the Windows users do anything
>  with ntpd which needs crypto?



I use ntpd with MD5 symmetric keys for manycast
 on all clients / servers.

 keys "/etc/ntp.keys" # e.g. contains: 123 M LAN_MD5_KEY , 321 M Corp_MD5_KEY , ...
 trustedkey 123 321
 tos cohort 1 orphan 10
 restrict source nomodify
 manycastclient key 123 preempt

As you can see, its trivial to setup, and I find it makes
 adding and removing clients / servers trivial on the LAN.

 No matter what other refclocks any given client / server
  may or may not have; they end up picking the best of what
  is available.

  If LAN and internet based Stratum One &/or Two Servers
   become unavailable, they follow each other around,
   until better sources are available again; they they
   automatically switch back to following the S1 &/or S2
   servers again.

   Add  GPS RefClock to any NTP Client / Server,
    anywhere on the LAN, it will be discovered and used,
    no configuration changes needed in all the other NTP
    Clients / Servers on the LAN.

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