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DNS - Unknown Error

AP.Remote.Access.Monitor.DA_DNS_HEURISTIC_UNKNOWN (UnitMonitor)

Unknown error occured with DNS infra

Knowledge Base article:

Summary

Unknown DNS Error reported by servers used by DirectAccess clients for name resolution. This might affect DirectAccess client connectivity to corporate resources.

Causes

Unknown.

Resolutions

1. Ensure DNS servers are online and responding to name resolution requests.

2. Verify DNS server settings.

Note: Operations status is updated in accordance with the configured refresh interval. Clicking Refresh to manually update status does not update the status of the DNS resolution and ICMP reachability checks.

Element properties:

TargetAP.Remote.Access.Class.DNS
Parent MonitorSystem.Health.AvailabilityState
CategoryCustom
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeAP.Remote.Access.Monitor.HeuristicMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
DNS - Unknown Error

Error Description - {0}
Error Cause - {1}
Error Resolution - {2}
RunAsDefault

Source Code:

<UnitMonitor ID="AP.Remote.Access.Monitor.DA_DNS_HEURISTIC_UNKNOWN" Accessibility="Public" Enabled="true" Target="AP.Remote.Access.Class.DNS" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="AP.Remote.Access.Monitor.HeuristicMonitorType" ConfirmDelivery="true">

  <Category>Custom</Category>

  <AlertSettings AlertMessage="AP.Remote.Access.Monitor.DA_DNS_HEURISTIC_UNKNOWN_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/DataItem/Property[@Name='ErrorDesc']$</AlertParameter1>

      <AlertParameter2>$Data/Context/DataItem/Property[@Name='ErrorCause']$</AlertParameter2>

      <AlertParameter3>$Data/Context/DataItem/Property[@Name='ErrorResolution']$</AlertParameter3>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="DA_DNS_HEURISTIC_UNKNOWN_Error" MonitorTypeStateID="Error" HealthState="Error"/>

    <OperationalState ID="DA_DNS_HEURISTIC_UNKNOWN_Warning" MonitorTypeStateID="Warning" HealthState="Warning"/>

    <OperationalState ID="DA_DNS_HEURISTIC_UNKNOWN_Success" MonitorTypeStateID="Healthy" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <Interval>300</Interval>

    <SyncTime/>

    <ComponentName>Dns</ComponentName>

    <HeuristicId>2147811328</HeuristicId>

    <Debug>false</Debug>

  </Configuration>

</UnitMonitor>