by Edward van Biljon | Jan 12, 2024 | Windows Server 2019 PowerShell, Windows Server 2022 PowerShell
One of my Exchange 2019 Core Servers in my lab locked up and was not responding and when it did respond was giving errors when running commands but the same commands worked on another server. As these are virtual machines, you can reboot it from the HyperVisor but...
by Edward van Biljon | Jan 6, 2024 | Exchange 2019, Exchange 2019 PowerShell
Calendar permissions are something I work with all the time and if you do not document each change you do and if you leave the company you are working for, the next administrator will not know what is currently set. You can view individual mailbox folder permissions...
by Edward van Biljon | Jan 5, 2024 | Exchange 2019, Exchange 2019 PowerShell
As an Exchange Admin, running updates such as Security updates or Cumulative Updates are something we perform all the time as they are released. This may be in a test lab or dedicated dev environment so you can track any issues. When servers are put into Maintenance...
by Edward van Biljon | Jan 4, 2024 | Exchange 2019 PowerShell, Exchange 2019
In my previous blog post, we looked at the Exchange Server Server Component State and how to validate each item. We will continue with the health checking and look at the Server Health state in Exchange Server, this can be Exchange 2019 or Exchange 2016. In this blog,...
by Edward van Biljon | Jan 3, 2024 | Exchange 2019 PowerShell, Exchange 2019, PowerShell, PowerShell ISE
As Exchange Administrators, we sometimes run into issues when mail stops flowing for example or Autodiscover is not working. Generally you would first look at the Event Logs but there is another section we need to also check. In Exchange, whether it is Exchange 2019,...
by Edward van Biljon | Jan 2, 2024 | PowerShell, PowerShell ISE, PowerShell V7, Windows Server 2016 PowerShell, Windows Server 2019 PowerShell, Windows Server 2022 PowerShell
In the hacking world, we know that Tools such as NMAP gives you a breakdown of the open ports, services etc. which is great and you can also check an open port using Telnet, but if you are restricted with tools and cannot add new features onto the Windows Servers, why...
by Edward van Biljon | Jan 1, 2024 | PowerShell, PowerShell ISE, PowerShell V7, Windows Server 2016 PowerShell, Windows Server 2019 PowerShell, Windows Server 2022 PowerShell
As an ethical Hacker, we are always looking for devices that are available on the network that we can scan. NMAP does a brilliant job by telling us which hosts are alive on the network but so do many other applications such as Angry IP Scanner, SolarWinds etc. If you...
by Edward van Biljon | Dec 31, 2023 | PowerShell, PowerShell ISE, PowerShell V7, Windows Server 2016 PowerShell, Windows Server 2019 PowerShell, Windows Server 2022 PowerShell
Many of us are always looking at what is using space on a server because one of the monitoring solutions has such as SolarWinds, SCOM or LabTech have sent an alert that the C:\ Drive has gone below 15% or whatever threshold you have set. Many of these are enterprise...
by Edward van Biljon | Dec 30, 2023 | Exchange 2019, Exchange 2013, Exchange 2016
Have you ever worked in an organization where you have had to enable LitigationHold on a user or multiple users mailboxes because something has happened or it is a case where every mailbox has it enabled. I have seen both and it is something quite simple to do. There...
by Edward van Biljon | Dec 29, 2023 | PowerShell, PowerShell ISE, PowerShell V7, Windows Server 2016 PowerShell, Windows Server 2019 PowerShell, Windows Server 2022 PowerShell
In a previous blog post, we searched for a specific keyword in PowerShell and displayed it in PowerShell directly. In this blog post, we will be looking for a specific Event ID that is triggered when an account cannot be logged onto and sometimes you can see the... 
