Exchange 2007: CCR failovers

Mohamed points out an interesting scenario for those of you using a standby FSW for CCR implementations. There are a lot of hard things about this kind of implementation….this is just one…

The basic issue here is that if you are using a CNAME to point your FSW at, you will be changing that CNAME to point to the new host for failovers. The issue comes into play when the host you are moving the FSW to has cached the previous CNAME (maybe from a long TTL, backup DNS hosts, etc). When this occurs you’ll get the standard duplicate name issue….but you can remedy this by following Mohamed‘s advice…

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