Use DNS Cache

Select the check box to use the DNS cache when looking up names. Clearing the check box will have the effect of flushing the DNS cache.

DNS name caching enables the DNS name resolver to speed up the process by which it converts host names into IP addresses. DNS name caching stores DNS requests by caching them so that they are easy to find the next time. Name caching improves DNS performance in the case of name server failure as well as reducing the time it takes for cluster takeover and giveback.

DNS name caching is enabled by default.