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 Selections page.

The resulting table shows:

• Server State —Up or Down (based on whether statistics are available), and how long the server has been in this state.
• Last Reload —How long since the last server reload.
• Total Zones —Number of configured zones.
• Total RRs —Number of resource records.

The DNS Inbound Zone Transfers dashboard element rendered as an 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 Selections page.

The resulting area chart plots the following trends:

• Full Response —Number of full inbound zone transfers (AXFRs in).
• Incremental Responses —Number of incremental inbound zone transfers (IXFRs in).
• Authorization Errors —Number of refused responses (xfer-in-auth-errors).
• Failed Attempts —Number of failures other than refusals (xfer-failed-attempts).
• Exceed Max Transfers In —Number of times that the concurrent inbound transfers reach the maximum limit.

The DNS Network Errors dashboard element rendered as an area 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 Selections page.

The resulting area chart plots the following trends:

• Query Error Packets/Query Responses —Ratio of query error packets over responses. Responses consist of:
  • Authoritative
  • Authoritative no-such-name
  • Authoritative no-such-data
  • Nonauthoritative
  • Nonauthoritative no-such-data
  • Requests refused
• Non Error Dropped Packets/Query Responses —Ratio of nonerror dropped packets (queries dropped) over responses.
• Update Errors/Updates —Ratio of DNS Update errors over total updates.

The DNS Outbound Zone Transfers dashboard element rendered as an 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 Selections page.

The resulting area chart plots the following trends:

• Full Responses —Number of full outbound zone transfers (AXFRs out).
• Incremental Responses —Number of incremental outbound zone transfers (IXFRs out).
• Authorization Errors —Number of unauthorized (refused) zone transfer requests.
• Exceed Max Transfers Out —Number of failed outbound transfers that exceed the maximum limit.
• Other Errors —Number of other outbound transfer errors that are not authorization errors.

The DNS Queries Per Second dashboard element rendered as an area 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 Selections page.

The DNS Related Servers Errors dashboard element rendered as an area 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 Selections page.

The resulting area chart plots the following trends:

• Referral Timeouts/Referrals —Ratio of referral timeouts over referrals.
• Failed Responses/Total Incoming Zone Transfer Requests —Ratio of failed responses over incoming zone transfer requests.
• TSIG Errors/TSIG Attempts —Ratio of transaction signature (TSIG) errors (bad times, keys, or signatures) over total TSIG attempts (successfully received packets).