In case you’re still running Windows Server 2012R2, here’s the ‘DNS2012R2 Addendum pack’ giving the same functionality as the version agnostic 2016+ addendum. Why? DNS is a translation method to convert names to IP’s. Can you imagine if we wanted to connect to google via IP? The number of workflows in the SCOM DNS pack (built by the DNS Product Group) makes for an astounding number of workflows running on your DC every minute. Forward and reverse lookups are a good check, verifying DNS is functioning. In a complex environment with 100’s of zones, SCOM becomes a utilization culprit for a DC’s primary missions – authenticate and resolve. This article will help you understand how the pack will add new capabilities and tune DNS monitoring to best practice.
Quick Download HTTPS://GITHUB.COM/THEKEVINJUSTIN/DNSADDENDUM2012R2/
What capabilities does the ‘DNS Addendum pack’ provide?
Count logic monitors (i.e. x events in y time, and self heal)
Daily summary report of DNS alerts broken out
Daily alert closure workflow to close out DNS rules/monitor
DNS service(s) recovery automation
Synthetic internal/external nslookup monitor (scoped to PDC emulators versus ALL DNS servers
WMI validation alert recovery to prevent false positive alerts with weird one off scenarios – one example: Security tools randomly block WMI access.
Download the ‘DNS2012R2 Addendum pack’ on GitHub to improve AD Integrated (ADI) DNS monitoring on Windows Server 2016+ (version agnostic).
Save and Import pack, then update XML for group GUIDs
Update XML
First, update XML with the GUIDs from your management group. Second, map the group DisplayName to find/replace the GUID for each group.
Third, using Notepad++ highlight the ContextInstance GUID and hit Control-H, and paste the group GUID then click Replace All.
Fourth – Rinse and repeat for the other three groups.
Lastly, save file, move to SCOM MS, and import!
Documentation and links
DNS Pack download
DNS2012R2 addendum blog including updates
GitHub Repository https://github.com/theKevinJustin/DNSAddendum2012R2/