DNS - Aging and Scavenging - Configure Intervals

Summary

This is an RMM implementation of the agnostic script Set-DNSServerScavengingSettings. It enables DNS scavenging and optionally allows you to set the interval for scavenging, 'no refresh', and refresh.

Sample Run

Dependencies

Set-DNSServerScavengingSettings

User Parameters

Name	Example	Accepted Values	Required	Default	Type	Description
ScavengingInterval	7	Integers	False		Text	The scavenging process runs after X days.
NoRefreshInterval	7	Integers	False		Text	This setting controls when the DNS server rejects refresh requests from hosts and the DHCP service.
RefreshInterval	7	Integers	False		Text	This option determines when a DDNS record can be flagged for scavenging (deletion). The default value is seven days.

Task Creation

Create a new Script Editor style script in the system to implement this Task.

Name: DNS - Aging and Scavenging - Configure Intervals
Description: Enables DNS scavenging and optionally allows you to set the interval for 'scavenging', 'no refresh', and 'refresh'.
Category: Custom

Parameters

Add a new parameter by clicking the Add Parameter button present at the top-right corner of the screen.

This screen will appear.

• Set ScavengingInterval in the Parameter Name field.

• Select Text String from the Parameter Type dropdown menu.

• Click the Save button.
  

• It will ask for confirmation to proceed. Click the Confirm button to create the parameter.
  

Add another parameter by clicking the Add Parameter button present at the top-right corner of the screen.

• Set NoRefreshInterval in the Parameter Name field.

• Select Text String from the Parameter Type dropdown menu.

• Click the Save button.
  

• It will ask for confirmation to proceed. Click the Confirm button to create the parameter.

Add another parameter by clicking the Add Parameter button present at the top-right corner of the screen.

• Set RefreshInterval in the Parameter Name field.
• Select Text String from the Parameter Type dropdown menu.
• Click the Save button.
• It will ask for confirmation to proceed. Click the Confirm button to create the parameter.
  

All the parameters will look like as shown below:

Task

Navigate to the Script Editor Section and start by adding a row. You can do this by clicking the Add Row button at the bottom of the script page.

A blank function will appear.

Row 1 Function: PowerShell Script

Search and select the PowerShell Script function.

The following function will pop up on the screen:

Paste in the following PowerShell script and set the expected time of script execution to 300 seconds. Click the Save button.

PowerShell Script

Row 2: Function: Script Log

In the script log message, simply type %output% so that the script will send the results of the PowerShell script above to the output on the Automation tab for the target device.

Completed Task

Output

• Script Log

Changelog

2025-04-10

• Initial version of the document