I have done pFSense installation and configuration guide 4 years ago and people are still interested in those. Today we will quickly go through the installation and initial configuration process. It has change a little bit, and is nothing complicated in my opinion. I still use a lot pFSense especially in my LAB environments – it has become standard for me.
Read MoreEmail service is at the heart of every company – and since this series is about Windows Server 2019, we are going to install Microsoft Exchange Server 2019 and skip cloud services, because this is on-premise series.
Maybe not the best timing because of recent Exchange server breaches, but, anyway – still good tool in you know how to maintain it
Read MoreI meant to write this earlier, but I just didn’t have enough time, because of the research and many things I’m doing to remediate this mess inside my network. Microsoft breach has quickly became one of the ugliest events in recent IT history, on par with Solarwinds. Adversaries used unknown flaw in Microsoft Exchange for more than two months to exploit 10s of thousands of organizations around the world. Microsoft patched exploit on 02.March 2021 but not everyone became aware of the seriousness of the situation immediately, so many environments are still unprotected. After exploit became publicly known many new actors entered the game, and now many new threats are looming, ransomware being one of them. What should we do?
Read MoreMicrosoft Exchange Hafnium breach is turning into one of the ugliest security incidents ever, really fast. Here I will try to explain my steps in the process, and what my stages of investigation were (so far). If you already know about problem, I will be happy to share some new info and also learn something new from you.
Updated 10 March 2021 – with new info about scripts and link to website check if you were breached (at the bottom of the post).
Updated 11 March 2021 – Looks like CompareExchangeHashes.ps1 script works ok now.
Updated 11 March 2021 – I see a lot of skepticism howt to proceed further with this – here I can offer my observations/opinions – https://www.informaticar.net/what-to-do-if-you-were-breached-by-hafnium-exchange-breach/
Read MoreAs of today (March 2021) we still have more than two years to use Windows Server 2012 R2 server. Smart thing to do would be to plan your exit strategy and make sure your services are on supported Windows Server version when support for WS 2012 R2 is near its end. I use WS 2012 R2 for years now on daily basis, and it has been great and rock solid software, but it’s time to move on :(
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