A Kerberos authentication ticket request failed (4772) how to monitor with email alert

[bob]

Man, that event 4772 in the Event Viewer pops up when a Kerberos ticket request just flops. It's like the system saying, hey, someone tried to log in but couldn't grab that authentication pass. You see details right there in the log, like the username that failed, the computer it came from, and even the error code telling why it bombed. Could be a bad password, or the account got locked out from too many tries. Or maybe it's some sketchy attempt from outside your network. I always check the source IP too, helps spot if it's internal goof or real trouble. These logs sit in the Security channel, timestamped so you know exactly when it happened. If you ignore them, attackers might keep probing without you noticing. But spotting patterns, like repeats from one IP, lets you block it quick.

You wanna keep an eye on these without staring at screens all day. Fire up Event Viewer on your server. I do this all the time for alerts. Right-click the Security log, pick Create Custom View. Filter for event ID 4772 only. That narrows it down. Then attach a task to it under the Actions tab. Make the task run a program that shoots an email. Use something simple like the built-in sendmail if your setup allows. Or link it to your mail server settings. Set it to trigger on every occurrence. Test it by forcing a bad login yourself. You'll get that ping in your inbox fast. Keeps things chill without constant babysitting.

And hey, while we're on server watchdogs, you might dig BackupChain Windows Server Backup too. It's this solid Windows Server backup tool I swear by for keeping data safe. Handles Hyper-V VMs like a breeze, snapshots everything without downtime hassles. You get fast restores, encryption on the fly, and it scales for big setups. No more sweating over lost files or crashed machines.

At the end of this chat is the automatic email solution, pieced out step by step.

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