Code debt and custom sandboxes

Schools can hardly be the only organisations with legacy applications in regular use for vital ’line-of-business’ functions. Hopefully for the most part these are visible to IT, securely contained and have an end-of-life date with a succession plan rather than being adopted through choice into a modern desktop environment. A while ago I encountered a nasty and unavoidable case of the latter and had to figure out a solution. The application I was tasked to deploy was for processing sensitive financial data on our most heavily-secured devices and relied on Internet Explorer and Java....

September 2, 2022 · 6 min · 1160 words · Chris Beattie

Exchange Online mailbox sender restrictions with Azure AD synced groups

I’d love to see current global stats comparing use of Exchange on-prem vs cloud. Surely given the number of recent security disasters, any notion of physical ownership of mailboxes equating to their safety has been well and truly dispelled and only the bravest or most prodigiously-resourced organisations would attempt hosting it themselves. Exchange Online is doubtless the most popular version and would most often be deployed alongside an on-prem Active Directory, yet as soon as AD is in the mix the assumption is that Exchange is on-prem or hybrid....

June 13, 2022 · 4 min · 662 words · Chris Beattie

KB5014754 Certificate Confuddle

In a masterful stroke of irony, within days of me sharing my solution for NPS RADIUS with AADJ devices, itself made necessary because Microsoft doesn’t consider the needs of their cloud-first customers, they made a major change to how certificates work in Active Directory in KB5014754 without considering the needs of their cloud-first customers. This change breaks the mechanism my solution relies on to operate and while there is a workaround, it is only viable until the change kicks in....

June 9, 2022 · 6 min · 1076 words · Chris Beattie

Microsoft Virtual Event Presentation

Delighted that the Microsoft education team gave me the opportunity to present some of my recent work to their top schools around the country and thankful for the great encouragement from those that attended. Honestly, the education community is just brilliant – and I’m proud to be a part of it!

May 27, 2022 · 1 min · 51 words · Chris Beattie

Microsoft NPS RADIUS for AADJ devices

Microsoft’s Network Policy Server (NPS) has been running network authentication in the enterprise for decades but is now out of the loop when it comes to a modern cloud-first infrastructure. Using an inventive approach, I show that it is possible to overcome its recalcitrance and get it authenticating Azure AD-joined (AADJ) as well as on-prem AD clients. This is the long-form writeup of the project I presented at Microsoft’s Australia-wide Surface Gold & Lighthouse Virtual Event in May 2022....

April 29, 2022 · 14 min · 2827 words · Chris Beattie