Install SSL/TLS certificates in Windows Server using PowerShell
The following PowerShell snippet can be used to quickly install an SSL (or TLS) certificate in Windows Server. It assumes you have a PFX file and its password. The default location is Cert:\LocalMachine\My, to use for IIS websites.
Install Windows Updates using PowerShell
You can use PowerShell to install Windows Updates automatically, unattended and simple. Neat, right? For this, you don't have to have an enterprise environment with WSUS, or Windows Server, but since this is Sysadmins of the North, I assume you do. In this post I'm show you how to install Windows Updates with PowerShell and the PSWindowsUpdate module.
Send email with PowerShell
Easily send your DevOps reporting by email with this PowerShell function, because the Send-MailMessage cmdlet is obsolete. Of course you'll be using StartTLS and authenticated SMTP as additional security.
Extract files from an MSI package
To extract all files from a .msi file, use the following msiexec command and arguments.
Windows 11/10 and WSL 2 DevOps environment
In this post I describe some of the settings and changes I made to make my Windows 10 and Ubuntu WSL into a fully fledged development environment. Here are the settings and tools I use for DevOps/SysOps on Windows.
Monitor .NET CLR Garbage Collected heap from your web application
Whether you run a .NET web application or administer a webserver that hosts .NET web applications, it is important to keep an eye out for memory usage. As developers and systems administrators we're all too familiar with OutOfMemoryException. As the name suggests, the exception is thrown when a .NET application runs out of memory, something you don't want to happen.
Quickly check EnableTrailerSupport isn't set in your network for http.sys (CVE-2022-21907)
Find out fast if your IIS webservers have EnableTrailerSupport enabled for https.sys in the registry
Adding VirtIO drivers to Windows Recovery Environment (Windows RE)
Learn how to add VirtIO drivers to your Windows Recovery Environment (Windows RE) to recover your Windows virtual machines. Using Powershell ofcourse and Windows Server 2022.
Retrieve SSH public key from Active Directory for SSH authentication
If you have tens (hundreds) of servers and/or users it's easier to retrieve user SSH public keys from Active Directory (AD) than from various unmanaged authorized_keys files.
Install SQL Server cumulative updates silently
Installing SQL Server cumulative updates is always a cumbersome, and quite daunting task. Unpacking and running the CU installer is a slow process, you have to click through a lot of screens, and it's hard to get it to install silently. But here is how!
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