Category: Blog

  • Step-by-Step Guide on Inserting Offline .MSU Updates into Windows .WIM Images

    Before deployment, Microsoft ISO’s install .wim or custom images should be updated. With the DISM module in PowerShell, you can add .msu updates, apps, and drivers to a Windows image offline without the need to boot it up. In principle, you can roll out outdated WIM archives because Windows Update subsequently downloads the patches to…

  • Step-by-Step Guide to Linking an Azure Function or Web App to a Key Vault using PowerShell

    Azure Functions often require access to sensitive information. It is a security risk to store credentials in code or configuration files. Thus, protecting sensitive information like connection strings, API keys, or passwords is crucial. This is where Azure Key Vault comes in, offering secure and centralized storage for all your secrets. In this article, I…

  • Troubleshooting Tips: How to Fix the Action Center Not Opening Issue on Windows 10 and 11

    The Action Center in Windows 10 and 11 delivers various notifications from both system and user apps. Plus, it offers quick buttons for enabling or disabling many Windows features like Wi-Fi, mobile hotspot, Bluetooth, and more. At times, its icon disappears from the tray, making it impossible to access the Action Center on Windows. This…

  • How to Troubleshoot a 502 Bad Gateway Error on Nginx

    One of the most frustrating errors the sysadmin comes across when working with Nginx is the 502 error. The text accompanying this error is ‘Bad Gateway’, which, unfortunately, doesn’t say much about what might have gone wrong. In contrast, the other errors clearly say that the resource or page was not found, or that you…

  • How to Install and Configure VNC Server on Ubuntu 16.04

    While the domination of Linux on the server scene is undisputed, managing servers isn’t for everyone. One big reason is that people just don’t know their way around the command line even if they are knowledgeable about what goes where. This prevents even highly experienced power users from being able to configure the server to…

  • How to Install Webmail in CentOS 7

    While the Linux system comes with mail-reading facility built in, the environment is really not convenient for those who don’t love the command line that much. A graphical client offers a lot more ease and features. For setting up an email client in CentOS 7, you have two options: Set up a GUI-based client such…

  • How to Install OpenNMS on Ubuntu 16.04

    When it comes to enterprise-grade network and service monitoring, there are few challengers to OpenNMS. It provides a simple web-based interface to visually monitor different parts of your service, and comes with a REST API that allows quick integration with virtually any system you might have. Installing OpenNMS on Ubuntu takes a bit of work.…

  • Free PDF Editor for Ubuntu

    Editing PDF files is a common enough task; but unfortunately, there’s no good solution for it in Ubuntu by default. While a lot can be said for Evince when it comes to reading PDF documents, the editing story is still underdeveloped.   If you scan the Ubuntu forums for some time, you’ll primarily come across…

  • How to Install Google Fonts on Ubuntu 16.04

    The default font collection on Ubuntu 16.04 leaves a lot to be desired. In fact, it was the case with much of Web (what with the very aggressively priced fonts and all that) until Google Web Fonts came along. We now have access to hundreds of font families through Google Fonts, fitting work as diverse…

  • How to Install Python 3.6 on Ubuntu 16.04

    The good thing about Ubuntu 16.04, as far as the Python programming environment is concerned, is that it comes with pre-installed Python3 support. For many years, the Python community has lived in the 2.7 vs. 3.0 divide, with many refusing the migrate. Eventually, however, the community at large came to appreciate the design decisions behind…