Install Windows Server Servicing Stack Updates (SSU) using PowerShell

You can install Servicing Stack Updates (SSU) for Windows Server 2016 and Windows Server 2019 using PowerShell, without downtime. Because they must be installed prior to your normal Windows Server security updates, you can install them anytime you want to during the day. Here’s a small PowerShell example to do so. Did this post helped…

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Security baseline for Windows 10 v1903 and Windows Server v1903 – final release

Microsoft is pleased to announce the final release of the security configuration baseline settings for Windows 10 version 1903 (a.k.a., “19H1”), and for Windows Server version 1903. Did this post helped you solve a problem? Or dit you find it interesting? Support Sysadmins of the North with a direct donation via Paypal of by bank…

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Automatically flush Redis cache after publishing a WordPress post

In a previous post I explained that clearing PHP opcode caches before WordPress Updates helps in streamlining the update process. WordPress updates no longer fail because of cached file locations. Did you know you can automatically flush opcode caches like Redis when you publishing a post or page in WordPress? Doing so ensures you and…

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How to uninstall and remove Adobe Flash Player in Windows Server

Ever wondered why Windows Server Update Services (WSUS) offers Flash updates for Windows Server? Adobe Flash Player is installed on Windows Server 2016 / 2019 if you have the Remote Desktop Session Host (RDSH) role installed. Yikes! I can imagine you want to delete Adobe Flash Player without deleting the RDSH role, and here is how.…

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11+ Tips to optimize Umbraco CMS

Umbraco is a popular, ASP.NET powered, content management system (CMS). Even though it performs pretty well, here are 11+ tips to optimize the performance of Umbraco powered websites on IIS. Did this post helped you solve a problem? Or dit you find it interesting? Support Sysadmins of the North with a direct donation via Paypal…

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Security?

WordPress .htaccess security best practices in Apache 2.4.6+

Apache Access Control done right in WordPress .htaccess, ‘Allow/Deny from all’ versus ‘Require All Granted/Denied’ Since Apache 2.4.6, a new module is used to configure and set up access control for websites: mod_authz_core. This means you have to use a different syntax for allowing or blocking hosts and IP addresses to your website. But unfortunately,…

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Manually failover all databases in an SQL Server Database Mirroring configuration

How to manually failover an SQL Server database mirroring session? How to manual failover mirrored SQL Server databases using Transact-SQL (T-SQL) in SQL Server 2017+. This can only be initiated from the principal server, and the mirrored database must be synchronized (that is, when the database is in the SYNCHRONIZED state). In this article I’ll show you…

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MySQL Connector/ODBC C# test script

Whenever you need to test your ASP.NET connection to your MySQL database, using ODBC, you can use the following C# test script. Currently it uses MySQL ODBC 8.0 Unicode Driver, but you can easily change the version used. As a bonus it prints some connection information and it requires an SSL connection to your MySQL…

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Windows privilege escalation guide

Ryan McFarland writes on his blog: “Privilege escalation always comes down to proper enumeration. But to accomplish proper enumeration you need to know what to check and look for. This takes familiarity with systems that normally comes along with experience. At first privilege escalation can seem like a daunting task, but after a while you…

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