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FQDN or IP address in destination server?

I have a questions about Notes client connection documents. In the Advanced tab under Destination server address, what are the pros and cons of using the server's FQDN or its IP address?
Personally, and this really is a personal preference, I use IP addresses for servers that have a static IP (which is pretty much most servers on most networks I've come across) rather than a FQDN.

My colleague Scott -- who is a master of that black art, networking -- always recommends FQDN.

I come at it from the point of view that DNS can be another point of failure. Do you want your users blaming Notes/Domino for connection errors because the OS can't resolve a name due to DNS errors?

Scott comes at it from the point of view that he can do some "very funky stuff" with the network and NAT addresses and Names across systems, etc. (He loses me somewhere after "NAT." <grin>)

Seriously, though, is the server multi-homed? Does it have internal and external addresses? Does it have multiple NICs? Is the (Notes) connection document supposed to work inside and outside of your network?

These are the issues you have to consider when creating your Notes connections.

There is no right or wrong answer to this question. Short answer: Both work equally well in a Notes environment given certain criteria.

This was first published in April 2006

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