Hi, We have two registered name servers to answer internet queries. One is on site and the other is a service of our ISP. The problem is that every once in a while the secondary server doesn¹t successfully complete zone transfers and the data expires. I¹m not sure what technically how the server answers when queried for addresses it no longer thinks are valid, but even after it¹s fixed it takes a while for the bad data to go away. What I¹m wondering is, what are the consequences of simply not using the secondary server. Right now we are looking at hardened appliances configured into a high availability cluster and I figure the pipe to the outside has a high likelihood of going down then does the cluster. So, if name servers out in the internet can¹t even reach our server because our connection is down, is that something that also propagates and get¹s cached (i.e. Is no data treated the same as bad data by upstream bind servers?
Thanks, Rob Rob Tanner UNIX Services Manager Linfield College, McMinnville Oregon
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