Author: Dominic Reigns

host.docker.internal is a special DNS hostname that lets Docker containers reach services running on the host machine. On macOS and Windows, Docker Desktop resolves it automatically. Linux requires an explicit mapping through the extra_hosts directive or the –add-host flag — both introduced to the host-gateway feature in Docker Engine 20.10. Understanding host.docker.internal and How It Resolves When a container sends traffic to host.docker.internal, Docker resolves the hostname to the gateway IP of the bridge network — typically 172.17.0.1 on default installations. That address is the Docker host from the container’s perspective. Mac and Windows run containers inside a lightweight VM,…

Network configuration requires knowing how to get Linux IP address on your system. This identifier enables communication between devices on local networks and across the internet. Multiple command-line methods exist for Ubuntu and Debian distributions running on Chromebooks. Understanding Network Identifiers in Linux Systems An IP address serves as a unique numerical label assigned to each device connected to a network. Two versions currently operate: IPv4 uses four number blocks separated by periods, while IPv6 contains longer alphanumeric sequences. Most home networks allocate private addresses within specific ranges. Public addresses allow external internet communication. When you get Linux IP address…

Curious about how to add icons to the Chromebook desktop? When you first power up your device, the home screen appears completely bare. This minimalist design differs significantly from that of Windows computers. Google intentionally crafted ChromeOS this way. You cannot place application shortcuts, website links, or documents directly onto your main screen. Instead, Google introduced the Shelf feature as an alternative solution. The Shelf functions similarly to what Windows users recognize as their Taskbar. It sits at the bottom portion of your display. This bar holds all your frequently accessed programs. Learning how to add icons to the Chromebook…

Parents and administrators often need to restrict private browsing on Chromebooks. Private browsing, also called incognito mode, lets users surf the web without saving history or cookies. This creates challenges when monitoring children’s online activity or enforcing internet policies. You cannot disable incognito mode on unmanaged Chromebook accounts through regular settings. The feature requires supervised accounts with proper controls. Google Family Link offers the best solution for home users who want to disable incognito mode on Chromebook without G Suite. This free service gives parents full control over browsing restrictions without enterprise accounts. How To Disable Incognito Mode On Chromebook…

Chromebook users face frustration when files refuse to delete despite multiple attempts. Learning how to turn off read only on Chromebook files solves this common problem quickly. ChromeOS marks downloaded files with viewing restrictions to prevent accidental deletion. This protective measure exists because Chromebooks have limited internal storage and rely on cloud solutions. You need this skill when managing storage space becomes critical. Files with viewing restrictions can be opened and renamed but cannot be removed until you disable the protection. The process takes less than a minute once you know where to look. Finding your downloads folder helps you…

ChromeOS has a native Scan app built in — no drivers, no third-party software. Connect your printer to the same Wi-Fi network as your Chromebook and you can scan documents in under a minute. Here’s the exact process, along with settings, brand-specific methods, and fixes for when things go wrong. What You Need Before You Scan from a Printer to a Chromebook Most modern all-in-one printers work with ChromeOS out of the box, provided they support Wi-Fi or a wired network connection. Bluetooth scanning is not supported on Chromebooks. Your printer and Chromebook must be on the same Wi-Fi network…

System administrators search through thousands of configuration files daily. Developers track down specific function names across entire codebases. The command line provides tools that scan files for text patterns in seconds. This guide covers the primary utilities for locating content inside documents on Unix-based systems. Linux Search Files For Text Using Grep The grep utility scans plain text files for matching patterns. It originated in Unix systems during the 1970s and remains the standard tool for text search operations. Basic syntax requires a search term and target location: grep ‘keyword’ filename The command returns all lines containing the specified term.…

Ghost touch on Chromebook happens when your screen registers touches you didn’t make. Your cursor moves randomly. Tabs close without warning. Videos pause on their own. This phantom activity disrupts your work and makes your device nearly unusable. The problem often appears after months of normal use, especially on touchscreen models like the Acer Chromebook Spin 513. Understanding how to fix ghost touch on Chromebook saves you from unnecessary frustration. Most cases stem from software conflicts, outdated firmware, or debris near the screen. You can resolve phantom touches yourself using simple troubleshooting steps before considering professional repair. How To Fix…

Searching for documents on your system can seem tricky. But Linux offers powerful tools for this task. Learning to find file in Linux helps you work faster. This manual covers essential techniques for quickly locating any document. Whether you’re new to Linux command line basics or looking to expand your skills, these methods will save you time. You’ll discover how to search by name, size, owner, and even content. How To Find File in Linux? Basic Syntax for Locating Documents The find utility is your primary tool. It scans directories and subdirectories efficiently. Here is the standard structure: $ find…

Debugging mode on Chromebook unlocks advanced capabilities for developers and tech enthusiasts. This feature grants you system-level access to modify files, enable SSH connectivity, and boot from USB devices. You need debugging mode when developing applications, testing custom code, or exploring Chrome OS internals. The feature provides rootfs modification rights and lets you set custom passwords for system access. Understanding these capabilities helps you make informed decisions about your device configuration. Debugging mode transforms your Chromebook into a flexible development platform with comprehensive system control. Understanding Debug Mode Capabilities When you enable debugging on Chromebook, several powerful functions become available…

The plumbing business is going through a real digital shift right now. If five years ago calculations were done in notebooks and Excel spreadsheets, the industry is now actively moving to specialized software. There are several reasons to switch to plumbing estimating apps.  First, competition is growing and clients expect a quick response. If you send a proposal in three days, competitors have already won the contract.  Second, errors in calculations can eat up all project profit. Miscounting the number of pipes or fittings — and now you’re buying materials out of pocket.  Third, there’s the reputation issue: a professionally…