MS Cluster DNS behind PIX failing

[paarlberg]

We are seeing some issues with DNS on a MS Windows 2003 2 node cluster failing. It is unable to use the cluster IP all the time. It may or may not work without any rhyme or reason.

Should we open up the ports to all servers in the cluster so it can communicate directly with the requesting system on the public side? Or should the cluster IP be enough?

We are also seeing issues on our monitoring system for web services as well.

Thanks

[Solace]

You can configure the DNS server on Windows to make use of a specific address.

Read:

http://support.microsoft.com/kb/813964/#XSLTH4147121123120121120120

Why are you running DNS in a cluster? Just a thought because you would be better served running TWO DNS servers simultaneously.

With regards to webservices, I’ve seen this when you setup SSL on a webservice and haven’t specifically allocated the SSL ip address (it defaults to the machine’s default IP) Have a look under the advanced settings in IIS at the IP used for SSL.

My 2c

My views are my own and in no way reflect those of my employer.