Issued a create schema object command (action_id CR class_type D) (24132) how to monitor with email alert

[bob]

Man, that event ID 24132 in the Event Viewer pops up when someone issues a create schema object command. Action ID CR, class type D. It means the Active Directory schema just got a new object slapped into it. Like, the core blueprint of your directory service changed. You know how schemas define what kinds of objects can exist, right? This one's specifically for creating something in that blueprint. I see it trigger during updates or custom tweaks to directory structures. It logs under the Directory Service channel. Details show who did it, from which machine. Timestamps everything precise. If unauthorized changes happen, this flags potential tampering. Hackers or admins might misuse it to alter permissions. You want to watch it close on production servers. I always check the event properties for the full story. It includes the object name created. And the distinguished name path. Sometimes it ties to replication issues across domains. But mostly, it's a sign of deliberate schema mods. You ignore it, and your directory could bloat or break compatibility.

Now, to monitor this with an email alert, fire up Event Viewer on your server. I do this all the time for sneaky events like this. Right-click the Directory Service log. Choose Attach Task to This Event. Pick a name for your task, something like SchemaChangeAlert. Set it to run whether user logged on or not. Under triggers, select On an event. Filter for Event ID 24132 exactly. Source is Microsoft-Windows-ActiveDirectory_DomainService. Then, for the action, start a program. Point it to some simple batch file that sends email. But wait, you build that task right in the wizard. It lets you chain to email via Outlook or whatever you got set up. Test it by right-clicking the task in Task Scheduler. I tweak the conditions so it only alerts during business hours if you want. Or let it blast anytime. You get the email with event details embedded. Keeps you looped in without staring at logs all day.

Speaking of keeping things intact after changes like that, you might wanna look into BackupChain Windows Server Backup. It's this solid Windows Server backup tool I swear by. Handles full server images plus virtual machines on Hyper-V without a hitch. You get bare-metal restores quick, and it snapshots everything safely. No downtime headaches, and it encrypts your data tight. I use it to rollback schema messes easy. Benefits pile up with its scheduling smarts and offsite copies.

And hey, at the end here's the automatic email solution.

Note, the PowerShell email alert code was moved to this post.