Nagios and Microsoft "cluster"
Bill Mathews
billford at billford.com
Fri Dec 16 14:16:12 CET 2005
Andrew Grimberg wrote:
>If you can get your customer to give you more information on the
>cluster, I bet they will tell you that it is an NLBS cluster in unicast
>mode. You might suggest to them that they work with their network techs
>to switch over to multicast mode, that should hopefully help a little
>with the problem. A better suggestion is for them to get a hardware
>load balancer instead of using Microsoft's NLBS solution. As we've
>discovered on our network, it causes a lot of problems on the media
>layer that kills some network security.
Oooooh, I bet you're 100% right. We had a similar issue with firewall
clustering on their network. Had to move to unicast mode to get around
Cisco's issues with multicast. Thanks for your pointer.
Bill
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