PowerShell Tag Archive
Compressed SQL Server backups can be verified in PowerShell using a handy PowerShell function. This comes in handy when you need to verify if existing SQL Server backups are compressed. Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or guru. I am merely a systems administrator, doing my daily thing at…
Continue reading How to determine if a SQL Server backup is compressed?
Sometimes you find your WSUS server keeps crashing over and over again. WSUS is unavailable and/or the WSUS management console hangs. When you start to investigate as to why Windows Server Update Services crashes, you’ll notice the following error message being logged in the HTTPErr log files: Jan ReilinkMy name is Jan. I am not…
Continue reading WsusPool keeps crashing: stops again and again
Detect the ethernet network speed using PowerShell or WMI is perfect for Windows Server Core. If you ever need to lookup the speed of your ethernet network card in Windows, on the command-line, use one of the following WMIC commands on your PowerShell prompt: Jan ReilinkMy name is Jan. I am not a hacker, coder,…
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This post explains how to restrict automatic NS resource record registration in Windows Server DNS using Dnscmd. This prevents Windows Server DNS to automatically create NS records for zones that it hosts on the server. Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or guru. I am merely a systems administrator,…
Disk cleanup in Windows Server using DISM is one of the most popular posts here on Saotn.org. It is still valid for Windows Server 2016 and up. So apparently, disk space usage is an issue in Windows Server. Which made me wonder: what more ways to clean up disk space in Windows Server are there?…
Continue reading 5 Extra ways to clean up disk space in Windows Server
You sometimes need to list and get all MAC addresses of all Hyper-V virtual machines in your network. Either for your Hyper-V administration or provisioning if you don’t set an unique MAC address automatically. Here is how to get all those MAC addresses easily with PowerShell. Jan ReilinkMy name is Jan. I am not a…
Continue reading List all MAC addresses of all Hyper-V Virtual Machines
When you start to play with Windows Server 2016 and IIS 10, you’ll receive an error when you try to install the IIS URL Rewrite Module in IIS. The error occurs because the URL Rewrite Module installer contains an invalid version check for the IIS being used. Here is how to install IIS URL Rewrite…
Continue reading How to install IIS URL Rewrite Module on Windows Server 2016 & IIS 10
Here’s a blacklist check script written in PowerShell. You can use this to lookup an IP address in various blacklists (DNSBL, RBL). Such a check is a great indicator for an IP address’ reputation. Basically this PowerShell blacklist checker is a port of my Bash script to check an IP address blacklist status in Linux.…
Ever wanted to know the current number of active FTP client connections on your Windows Server FTP Service? You can get this statistic using PowerShell, the Get-Counter cmdlet and the Microsoft FTP Service Current NonAnonymous Users performance counter. Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or guru. I am merely…
Windows PowerShell (“PS” for short) is an important tool in Windows Server for administrators. You can use PowerShell for Windows Server administration, software installation, automation, and shell/command-line scripting. Here is a small and simple introduction to Windows PowerShell. Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or guru. I am merely…
In this article I’ll show you how to install the Microsoft SQL Server Driver for PHP 7+. This makes the use of an SQL Server database back-end for your PHP website easy. If you want to communicatie with SQL Server using PHP you need to rely on some additional software and PHP extensions. This post…
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OpenSSL comes in handy when you need to generate random passwords, for example for system accounts and services. In this short post I’ll give you a quick example on how to generate random passwords with OpenSSL in Linux (Bash), Windows and PHP… Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or…
Continue reading Generate pseudo-random passwords with OpenSSL
Here is how you can verify whether an external command in PowerShell was executed successfully or not by its errorlevel. Simply by verifying PowerShell’s return value, or exit code… Jan ReilinkMy name is Jan. I am not a hacker, coder, developer or guru. I am merely a systems administrator, doing my daily thing at Vevida.…
Continue reading PowerShell return value, exit code, or ErrorLevel equivalent
How to retrieve the Hyper-V virtual machine’s serial number with PowerShell? Sometimes you need to have the serial number of a Hyper-V virtual machine (VM, or guest). We, for instance, use this serial number in our automatic, unattended deployment of the guest operating system. But then you need to know how to find this serial…
Continue reading Get Hyper-V guest serial number with PowerShell
How to tunnel Remote Desktop (RDP) over SSH with PuTTY. Have you ever been in a situation where you needed to perform remote administration on a Windows Server, and the RDP port 3389 is blocked on a firewall? Did you know you can tunnel RDP over SSH with PuTTY? This particularly comes in handy when…
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