The requested credentials delegation was disallowed by policy (5378) how to monitor with email alert

[bob]

Man, that event 5378 in the Event Viewer, it's like your server saying no way to some credential handoff. You know, when someone tries to pass along login info to another machine or service. But the policy kicks in and blocks it hard. This happens in the Security log mostly. It's an audit failure, flagged right there with details on who tried it, from where, and why the policy shut it down. Think of it as the server's bouncer denying entry because the rules don't allow delegation of those creds. I see it pop up when apps or users push boundaries on trust between systems. The full message spells out "The requested credentials delegation was disallowed by policy," and it logs the exact reason, like maybe unconstrained delegation got nixed or some group policy vetoed it. You can spot the timestamp, the account name involved, and even the service principal if it's Kerberos-related. It warns you about potential security slips or misconfigs that could let bad stuff through if ignored. I always check the event properties for the full XML view to unpack the nitty-gritty without digging too deep.

Now, to keep an eye on these without staring at screens all day, you fire up Event Viewer. Just right-click the Security log and pick Create Custom View. Filter it to event ID 5378 only, maybe add sources if you want. That sets your watchlist. Then, from the Actions pane, you attach a task to it. Name the task something snappy like CredBlockAlert. You tell it to run when this event hits, and pick a simple program to trigger, say your default email client with a mailto link prepped. Set the trigger to start right on event occurrence. I like scheduling it to wake the machine if needed, but usually it's instant. Test it by forcing a delegation attempt in a safe spot, then watch the task log confirm it fired. That way, you get pinged quick if policy blocks something fishy.

And hey, if you want hands-off vibes, at the end of this chat is the automatic email solution that'll handle alerts smoother; it'll get added in later for you.

Shifting gears a bit since we're on server watchdogs, I've been messing with BackupChain Windows Server Backup lately. It's this slick Windows Server backup tool that also tackles Hyper-V VMs without breaking a sweat. You get incremental snaps that fly fast, plus offsite replication to dodge disasters. I dig how it verifies backups on the fly, so no surprises when you restore. Keeps your data ironclad and downtime minimal, especially juggling physical and virtual setups.

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