Janik von Rotz

Forward Windows event log entries to syslog server

Syslog is the defacto standard for sending log messages in an IP network. Instead of pulling log messages from a remote computer as you would do it in a windows environment, the log files are sent by remote computers to a central log repository. This way of managing log files has become the standard for Linux / Unix environments. As our IT systems tends to become hybrids, the questions arises how it possible to send syslog messages from a windows computer. In this post I will present you a simple approach.

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PowerShell - Logging in CMTrace format

CMTrace is probably the first choice for a log viewer in a Microsoft environment. When working with System Center Configuration Manager there aren’t any alternatives available. In a recent scenario I had to write log files in the CMtrace format. There are already many cmdlets available to do so, however, most of them did not work well or were overengineered. There I’ve taken a look at the CMTrace format specs and wrote a PowerShell function to create compatible log files.

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Configuration Manager - Configure requirement rules for deployment types with PowerShell

Configuration Manager applications can be equipped with powerful requirement rules. For example an application must be installed only if there is enough disk space on the target device or only if the device is the users primary device. The second example is an important requirement rule when working with user device affinity. Configuring this kind of rule is done in a few seconds using the management console. However, scripting the rule with PowerShell is much more difficult. As of today the cmdlets provided by Microsoft for automating Configuration Manager assets do not support building requirement rules for deployment types. But as always there is a workaround. In my case I’ve decided to create an application template containing all requirement rules and copy specific rules from there to other applications.

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SCCM 1702 increase client log size and retention

With additional steps in an image deployment task sequence the log files will grow quite big. By default the Configuration Manager client keeps a log history of 0 and a size limit of 2 MB for each log file. In result you’ll find yourself missing important details when trying to debug a failed operating system deployment. At some point the log files will be cut off. In order to increase the log size and retention, parameters must be configured in two places.

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Monitor and audit Active Directory user and group management

Traceability is key when collaborating in the Active Directory (AD). Multiple admins changing and updating permissions and policies makes it difficult being compliant with the company’s policies. It is important to monitor mutations in the directory. By default audit policies are disabled for Domain Controllers (DC) and must be enabled explicitly. Enabling auditing for the DCs is quite easy, querying the logs for a specific event is a bit more difficult.

In this guide you’ll learn how to enable auditing for a specific case and how to query the audit logs for a specific event.

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Get unlinked GPOs with PowerShell

In terms of IT compliance having valid GPOs is essential. They must be update to date and the GPO directory should be free of any unlinked GPOs. Retrieving a list of unlinked GPOs in the management console is impossible. With PowerShell it is quite easy.

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Remove provisioned appx packages from Windows image for operating system deployment

While preparing a Windows image for SCCM deployment I looked for a viable solution to remove Windows apps from the image. SCCM offers a lot options to execute this kind of action such as running a task sequence or install an application. But none of the options worked out for me. Either they were too complicated to configure or simply didn’t work as expected. Today I’ve found a script on TechNet seemed to a good solution. This script showed me how easy it is to mount a windows image and remove the app packages directory from it. However, the script was outdated and didn’t offer the option to remove only selected apps. That’s why I’ve created my own remix of the script.

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Manage the life cycle of your SCCM applications with PowerShell - Part 4 Remove Applications

“Manage the life cycle of your SCCM applications with PowerShell” is a short post series where I share my PowerShell experience with System Center Configuration Manager. In my last post I’ve shown you a script to distribute application content and deploy an application to its collections. In my final post I’ll show you the last part of the app life cycle - the termination.

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O3M 76 - Light Up

Another playlist 🎶🎹

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Manage the life cycle of your SCCM applications with PowerShell - Part 3 Deploy Applications

“Manage the life cycle of your SCCM applications with PowerShell” is a short post series where I share my PowerShell experience with System Center Configuration Manager. In my last post I’ve shown you a script that creates applications and all assets required to deploy it. This time I have a script to distribute the application content and deploy the application to its collections.

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