Anthony J. Fontanez

Anthony J. Fontanez

@ajf8729.com

Lead Customer Engineer (Intune/ConfigMgr) Endpoint Management Enthusiast Admin: WinAdmins Community (@winadmins.io) About Me: https://ajf.one/me Blog: https://ajf.one/blog All views are my own.

263 followers252 following78 posts

Four years running now, still managing to keep my lab root CA alive! I think the VM has been moved 3 or 4 times at this point, but I still keep managing to publish a new CRL! #PKI #ADCS

Anthony J. Fontanez reposted

What do #Certificates, #SecureBoot, and #BlackLotus have in common? Read my new blog post for more context on what's actually happening and why you need to do more than just flip a few settings in the long run. Enjoy reading! manima.de/2026/01/secu...

manima.deSecure Boot, Certificates and BlackLotus – mAnimA.deMicrosoft wants you to update your Secure Boot certificates as soon as possible. Join me as I explain the situation and take action now!

It really grinds me gears when Teams meeting organizers do not force end meetings when they are over, and people that walked away or fell asleep stay stuck in the meeting for hours, leaving the camera icon there saying there's an active meeting.

Why is it every time I hear/see things like "Delivery Optimization broke our network", the "solution" always seems to be "so we blocked DO [in all the incorrect ways]" instead of "we finally decided to upgrade our ancient network infrastructure"?

Anthony J. Fontanez reposted

Anthony J. Fontanez reposted

Folks, bookmark this 👇 Did you know I curate a list of all the awesome Entra related links all in one place? Here's a quick peak into this list

I ended up writing a post about the new feature to change group SOA from AD to #Entra. Big big thanks to @intune.best for all of the assistance he provided and initial testing he did in #WinAdmins Discord voice yesterday! ajf.one/group-soa

ajf.oneGroup SOA Conversion – From AD to Entra!Entra Connect Sync 2.5.76.0 was released on 2025-07-31, and the release notes included a cool new feature: Group Source of Authority conversion feature allowing administrators to transfer on-premis…

Aye, this new #Entra feature is pretty neat once you work out the missing bits! After you set isCloudManaged=true, add the group to the Cloud Sync Entra->AD config, trigger provisioning, and watch the group get relocated/renamed! SOA reversal with the SID maintained! See before and after images:

Aye, this new #Entra feature is pretty neat once you work out the missing bits! After you set isCloudManaged=true, add the group to the Cloud Sync Entra->AD config, trigger provisioning, and watch the group get relocated/renamed! SOA reversal with the SID maintained! See before and after images:

You can now specify whether an #ADDS group is an #EntraID group or on-premises. This is called a 'change of SOA'. However, be aware that, since @ajf8729.com and I have only just tried this out, the documentation is incomplete for now. Let me explain...🧵 learn.microsoft.com/en-us/entra/...

Anthony J. Fontanez reposted

It has been almost 3 years since my last blog post, but I am excited to share my first Microsoft Tech Community post! Want deeper Intune reporting? I walk through building a Windows 365 dashboard using Power BI + Log Analytics. Check it out! #Intune #Windows365 #TechCommunity

techcommunity.microsoft.comCreating Custom Intune Reports with Microsoft Graph API | Microsoft Community Hub  Systems administrators often need to be able to report on data that is not available in the native reports in the Intune console. In many cases this...

This is actually hilarious and no, you shouldn't blindly trust some root CA like this. This defeats the purpose of how PKI works. Public CAs are heavily regulated in terms of auditing and security.

And it's a super easy setup/upgrade, go do it now! #Entra

Nathan McNulty@nathanmcnulty.com

It's here! Modern auth for Entra Connect Sync is now available 🚀 This finally moves from user/pass to auth with Entra to using a Service Principle with a certificate. Another benefit is misconfigs in CA policies will no longer break syncing :) Docs: learn.microsoft.com/...

Anthony J. Fontanez reposted

Happy Memorial Day Weekend Everyone! Indy 500 tomorrow, Game 3 between the Pacers and Knicks. What better way to celebrate the weekend than a new post about converting SCCM Configuration Items to Intune Remediation Scripts? joeloveless.com/2025/05/conf... #sccm #intune #mecm #powershell

joeloveless.comConverting Registry Based SCCM Configuration Items to Intune Remediation ScriptsScript walkthrough on converting SCCM Configuration Items to Intune Remediation Scripts.

My take on remediating #BlackLotus via #Intune Remediations & #ConfigMgr CIs. It sure was fun to code up and test as much as I was able to. Please let me know if you have any feedback or run into any issues if you try the scripts out! ajf.one/blacklotus

ajf.oneDealing With CVE-2023-24932, aka Remediating BlackLotusCVE-2023-24932. 2023 feels like so long ago, and yet, this is still an issue. Why? Because it’s quite frankly a mess to deal with and has multiple moving parts. I highly recommend reading tho…

Anthony J. Fontanez reposted

📬 #Windows Recall had a rocky start, but where do we stand now as it moves into GA? With a complete security overhaul, fresh admin controls, and a default-off strategy, the improvements are promising! Interested to read a more optimistic view? stte.me/recallisgreat

stte.meFrom Criticism to Confidence: Windows RecallWindows Recall is a powerful tool, but is it secure, should you be concerned, and how do you manage it?!

New Soapbox Post: Obsolete Security – Stop Setting These Policies! anthonyfontanez.com/index.php/20... Here I talk about requiring Ctrl+Alt+Del to log in, not displaying the last logged-in username, and logon banners, and why you should stop setting these! #Intune #WinAdmins

anthonyfontanez.comObsolete Security – Stop Setting These Policies!The settings in the above screenshots were fairly common to be applied to all workstations as a requirement 20-ish years ago. However, it’s now 2025, and we really don’t need to be sett…

Anthony J. Fontanez reposted

This article is a great deep dive by @cryps1s I am also a huge fan of this Firewall series by Anthony Fontanez (used to be @ajf8729) anthonyfontanez.com/index.php/20... He covers how to handle certificate auth in the firewall and use with Entra joined devices, explains hard stuff well :)

Sebocat@sebocat.bsky.social

You should watch Jessica Paynes amazing Windows Firewall presentation - and then read this excellent blog about endpoint isolation medium.com/@cryps1s/end...