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These authoritative DNS metric elements are available in the dashboard:
The DNS Outbound Zone Transfers dashboard element rendered as a stacked area chart tracks the rate of change in full and incremental outbound zone transfer responses, and any associated errors. The chart is available if you choose DNS Metrics: DNS Outbound Zone Transfers in the Chart Selection list.
The resulting stacked area chart plots the following trends:
This chart is useful in gauging if outbound zone transfers to a secondary DNS server are occurring as predicted and if there are any authorizations or failed transfer attempts in the process. The most significant indicator is the trend in the number of outbound zone transfers denied for lack of permission or for not being authorized for the zone.
Check the primary and secondary server configurations if there are errors or exceeded limits in the outbound zone transfers.
The DNS Inbound Zone Transfers dashboard element rendered as a stacked area chart tracks the rate of change in full and incremental inbound zone transfer responses, and any associated errors. The chart is available if you choose DNS Metrics: DNS Inbound Zone Transfers in the Chart Selection list.
The resulting stacked area chart plots the following trends:
This chart is useful in gauging if inbound zone transfers to a secondary DNS server are occurring as predicted and if there are any authentication or failed transfer attempts in the process. The most significant indicator is the trend in the number of inbound zonended transfers denied for lack of permission, for not being authorized for the zone, or for other reasons.
Check the primary and secondary server configurations if there are errors or exceeded limits in the inbound zone transfers.
The DNS Network Errors dashboard element rendered as a line chart tracks the rate of change in DNS server network errors. The chart is available if you choose DNS Metrics: DNS Network Errors in the Chart Selection list.
The resulting line chart plots the following trends:
This chart indicates query and response errors as an indication of the health of the server.
Check the DNS server network configuration if errors are increasing.
The DNS Related Servers Errors dashboard element rendered as a line chart tracks the rate of change in DNS related server errors. The chart is available if you choose DNS Metrics: DNS Related Servers Errors in the Chart Selection list.
The resulting line chart plots the following trends:
This chart indicates the health of connections and data transfers with related DNS servers. All three chart lines can have diagnostic significance.
Check the configurations and connectivity of the related servers in HA DNS relationships if errors are increasing.
The DNS General Indicators dashboard element rendered as a table shows the server state, its last and startup reload time, the number of zones per server, and the total resource record (RR) count. The table is available if you choose DNS Metrics: DNS General Indicators in the Chart Selection list.
The resulting table shows:
The data in this chart shows general server health and operational duration. The objective is to make decisions about the server, such as whether it might be time for another reload, perhaps warranted by the number of configured zones.
If the server state is Down, all the DNS chart indicators show a red status box, so no data will be available. In the case of a server that is down, restart the server. The number of zones indicated might also require some evaluation and possible reconfiguration.
The DNS Queries Per Second dashboard element, rendered as chart, displays queries per second for the Authoritative DNS server. This chart is available if you choose DNS Metrics: DNS Queries Per Second in the Chart Selection page1.