PRTG Manual: IP on DNS Blacklist Sensor
The IP on DNS Blacklist sensor checks if the IP address of its parent device is listed on specific blacklist servers.
For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.
- Dutch: IP op DNS Blacklist
- French: IP sur liste noire du DNS
- German: IP auf Schwarzer Liste des DNS
- Japanese: DNS ブラックリスト記載の IP
- Portuguese: IP em Blacklist DNS
- Russian: Черный список IP-адресов на DNS
- Simplified Chinese: DNS 黑名单 IP
- Spanish: IP en lista negra de DNS
- This sensor has a high performance impact. We recommend that you use no more than 200 of this sensor on each probe.
- This sensor requires .NET 4.7.2 or later from Microsoft on the probe system. If the sensor shows the error PE087, additionally install .NET 3.5 on the probe system.
- We recommend Windows Server 2012 R2 on the probe system for best performance of this sensor.
- This sensor supports IPv6.
- If a Domain Name System (DNS) name is used as the host name of the parent device, PRTG resolves it to an IP address before querying blacklist servers.
- During normal operation, there should be 0 hits and the sensor should show the Up status. If the sensor can find the IP address on at least one of the blacklist servers, it shows the Warning status by default. You can set additional thresholds in the channel settings.
- Knowledge Base: Is there a list of anti spam black list servers?
Requirement |
Description |
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This sensor requires .NET 4.7.2 or later to be installed on the probe system (on every cluster node, if on a cluster probe).
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Setting |
Description |
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Sensor Name |
Enter a name to identify the sensor. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.
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Parent Tags |
The tags that the sensor inherits from its parent device, parent group, and parent probe.
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Tags |
Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.
The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:
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Priority |
Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority ( |
Setting |
Description |
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Blacklist Servers |
Define the blacklist servers that the sensor uses for the check. You can enter a comma-separated list. The default is bl.spamcop.net.
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Setting |
Description |
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Result Handling |
Define what PRTG does with the sensor result:
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Setting |
Description |
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Primary Channel |
Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.
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Graph Type |
Define how different channels are shown for this sensor:
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Stack Unit |
This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so. |
By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click under the corresponding setting name to disable the inheritance and to display its options.
For more information, see section Inheritance of Settings.
For more information, see section Root Group Settings, section Scanning Interval.
Schedules, Dependencies, and Maintenance Window
You cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.
For more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.
For more information, see section Root Group Settings, section Access Rights.
Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.
Channel |
Description |
---|---|
Downtime |
In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status |
Execution Time |
The execution time |
Sum |
The number of blacklist hits found
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KNOWLEDGE BASE
Is there a list of anti spam black list servers?
Which .NET version does PRTG require?
What security features does PRTG include?
For which sensor types do you recommend at least Windows Server 2012 R2 and why?