The Network Firewall is turned off

Microsoft.Windows.Server.Essentials.FirewallDisabled (UnitMonitor)

Knowledge Base article:

Summary

This monitor detects the following critical alert on the server that is monitored: The Network Firewall is turned off

Causes

The server that is monitored raised an critical alert.

Resolutions

The Network Firewall is turned off on this computer. You should turn the firewall on to protect the data stored on the computer.

Element properties:

Target

Microsoft.Windows.Server.Essentials.ComputerClass

Parent Monitor

System.Health.AvailabilityState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.Windows.2SingleEventLog2StateMonitorType

Remotable

True

Accessibility

Public

Alert Message

The Network Firewall is turned off

The Network Firewall is turned off on this computer. You should turn the firewall on to protect the data stored on the computer.

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.Windows.Server.Essentials.FirewallDisabled" Accessibility="Public" Enabled="true" Target="Microsoft.Windows.Server.Essentials.ComputerClass" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.2SingleEventLog2StateMonitorType" ConfirmDelivery="true">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.Windows.Server.Essentials.FirewallDisabled_AlertMessageResourceID">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/EventDescription$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

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

    <OperationalState ID="SecondEventRaised" MonitorTypeStateID="SecondEventRaised" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <FirstComputerName>$Target/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</FirstComputerName>

    <FirstLogName>Microsoft-Windows-ServerEssentials/Admin</FirstLogName>

    <FirstExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">1280</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">Microsoft-Windows-Windows Server</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[1]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">FirewallDisabled</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[2]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">$Target/Property[Type="Windows!Microsoft.Windows.Computer"]/NetbiosComputerName$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </FirstExpression>

    <SecondComputerName>$Target/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</SecondComputerName>

    <SecondLogName>Microsoft-Windows-ServerEssentials/Admin</SecondLogName>

    <SecondExpression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">1283</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">Microsoft-Windows-Windows Server</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[1]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">FirewallDisabled</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Params/Param[2]</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">$Target/Property[Type="Windows!Microsoft.Windows.Computer"]/NetbiosComputerName$</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </SecondExpression>

  </Configuration>

</UnitMonitor>