Powershell

To get a quick list of all of your domain controllers, run this one-liner: Get-AdDomainController -Filter * | Select-Object -Property Name, Domain,...

When you delete files on storage media like hard drives or USB sticks, as you probably know, the data is not immediately deleted. Instead, the data...

Let’s assume someone left the company, and you deleted its Office365 user account. As it turns out, this also deletes the attached mailbox. If you...

If you have deleted a Office365 user account and then realize that you still need the data in its mailbox, you may be able to recover the mailbox....

Select-Object can not just select properties but also rename. Let’s assume you need a list of files in a folder with their size. This line would...

PowerShell cmdlets in Exchange Online use “Remote PowerShell” as a remoting technology which is a legacy technology with security risks in today’s...

Windows PowerShell 2.0 is still part of any Windows PowerShell for backwards compatibility, and when enabled, it is a serious security risk –...

Get-Printer returns basic information about all local printers. When you add the switch parameter -Full, it returns even more detailed information...

PowerShell offers you a plentitude of approaches to solve a task. They always boil down to the same strategies. In this mini-series, we will...

PowerShell offers you a plentitude of approaches to solve a task. They always boil down to the same strategies. In this mini-series, we will...

PowerShell offers you a plentitude of approaches to solve a task. They always boil down to the same strategies. In this mini-series, we will...

PowerShell offers you a plentitude of approaches to solve a task. They always boil down to the same strategies. In this mini-series, we will...

In our previous tips we introduced all kinds of useful PowerShell functions to ping, scan ports, or contact SNMP devices. Today, it’s time to take a...

In our previous tips we created two fast functions to ping and port-scan remote systems: Test-Ping and Test-RemotePort: function Test-RemotePort {...

In our previous tip we looked at Test-NetConnection and found that it was way too slow, so we replaced it by a much faster Test-RemotePort function....

Port scans can be useful to identify devices or machines in your network, i.e. file servers (port 445), PowerShell remoting targets (port 5985), or...

Here is a PowerShell code snippet that creates a list of IPv4 addresses for a given segment. You just specify the start and end address: $From =...

Hash tables and dictionaries are perfect lookup tables: whenever your original data contains cryptic numbers or a command returns just numeric...

On Windows, PowerShell comes with cmdlets to automate the built-in antivirus engine “Defender”. In this second part, let’s take a look at how you...

On Windows, PowerShell comes with cmdlets to automate the built-in antivirus engine “Defender”. If you’d like to update the signatures...

PowerShell is a generic script language so you can do all kinds of stuff with it. Below is a function that takes a light wavelength and converts it...

Let’s say your script needs sensitive input like connection strings for a database or other text information. One way of managing such secrets is to...

In part 1 we looked at how data becomes more accessible when converted to a more appropriate .NET data type. If you can't find an existing data type...

Windows is an API-driven operating system, and PowerShell is, too. Compared to other shells that use plain text as a common denominator and leave it...

As explained in the previous part, PowerShell uses the $ConfimPreference automatic variable as part of its risk mitigation system: whenever a...

In PowerShell, the $ConfimPreference variable is set to "High" by default. What does this setting control? PS> $ConfirmPreference High Any...

In PowerShell, there are four separate sources of commands you can pick from when trying to solve a problem. In this mini-series, we look at all of...

In PowerShell, there are four separate sources of commands you can pick from when trying to solve a problem. In this mini-series, we look at all of...

In PowerShell, there are four separate sources of commands you can pick from when trying to solve a problem. In this mini-series, we look at all of...