Multisig (multisignature) is a cryptographic mechanism that requires multiple private keys to authorize a blockchain transaction. Think of it as a vault requiring two or more keys to open — no single key holder can move funds alone. How It Works A multisig wallet uses an m-of-n formula, where m is the number of signatures…
This kernel change (commit 87d855e) prevents the Graphics Micro-Controller (GuC) and HEVC Video Codec (HuC) from being enabled by default on Intel GPU generations before Gen11, even when using automatic detection mode. Background: GuC and HuC in i915 The i915 driver supports hardware-based GPU command submission and video codec acceleration through GuC and HuC firmware….
Hadoop launched in 2006 as a game-changer for processing massive datasets across distributed clusters. The core idea remains sound: bring computation to the data rather than moving petabytes across networks. But the landscape has shifted dramatically, and understanding where Hadoop fits today matters more than treating it as the default choice. Why Big Data Processing…
Linux Kernel 5.0 shipped in March 2019 as a symbolic milestone—the first major version bump from the 4.x series. The kernel project switched to semantic versioning at that point, so the jump to 5.0 was more about naming convention than revolutionary technical changes. That said, the release included several features and hardware improvements worth understanding,…
GNOME’s natural scrolling setting can be frustrating — especially when the GUI option is missing or doesn’t apply to your mouse while leaving your touchpad alone. The issue usually comes down to your session type, GNOME version, and how input devices are registered on your system. Check your session type first Before troubleshooting, verify whether…
EncFS is a FUSE-based encrypted overlay filesystem that was once popular for transparent file encryption. However, its use on Android has become impractical due to Android’s security architecture. Here’s what you need to know in 2026. Why EncFS Doesn’t Work Well on Android Anymore Android’s evolution has made direct EncFS usage difficult: Scoped Storage (enforced…
If you’re managing academic references, you need a tool that integrates seamlessly into your workflow. Here are the most practical open-source and free options available. Zotero Zotero is the strongest choice for researchers who want full control over their data. It’s open source, maintained by a nonprofit, and doesn’t require subscription fees. Core features: Browser…
Google Maps integration is straightforward, but the approach depends on whether you need an interactive map or a static image. Each has trade-offs worth understanding. Static Map Images For a simple, lightweight solution, use Google’s Static Maps API. This generates a single PNG image without requiring JavaScript or API interactions. <img src=”https://maps.googleapis.com/maps/api/staticmap?center=40.714728,-73.998672&zoom=12&size=600×400&key=YOUR_API_KEY” alt=”Map of New…
Tethering your iPhone to your computer’s internet connection via USB is useful when you need a stable, low-power connection or want to avoid wireless overhead. This guide covers the practical setup on Windows and how to configure your iPhone to use your PC’s internet. Windows USB Tethering Setup On Windows 10/11: Install iTunes or Apple…
iOS SSH clients have matured significantly, and if you need SOCKS proxy support, there are several solid options worth evaluating. The key difference from desktop clients is that iOS imposes sandbox restrictions, so dynamic forwarding requires apps built with that constraint in mind. vSSH vSSH remains one of the more capable SSH clients for iOS,…
Firefox on iOS has improved significantly since the early days, but understanding what syncs and what doesn’t remains important for managing bookmarks across devices. Current sync capabilities As of 2026, Firefox sync does support bookmarks across iOS and desktop, but with important limitations. When you enable Firefox sync on your iOS device and link it…
When you open a popup window with window.open(), you’ll often need to detect when the user closes it so you can update your UI, refresh data, or clean up resources. Here are the practical approaches, from polling to event-driven methods. Polling the closed property The simplest method is to periodically check the popup’s closed property:…
When you wrap your WordPress site in a native Android app using WebView, Google’s AdSense policy prohibits serving those ads through the app wrapper. You need to hide AdSense on mobile views while keeping them on desktop, and ideally detect when your site is loaded inside a WebView to block ads there too. Detecting Mobile…
If you’re running AdSense responsive ads on a content area narrower than full viewport width, you’ve probably noticed the ads default to horizontal (leaderboard) formats instead of the vertical rectangle ads that typically perform better. You can control which ad sizes appear by modifying the ad format parameter. The Problem with Auto Format When you…
Google Custom Search Engine (now part of Programmable Search Engine) lets you offload search functionality to Google’s infrastructure. Redirecting WordPress search queries to CSE can improve search quality, especially for large sites with poor built-in search performance. How it works WordPress uses the s query parameter by default when processing searches from the search form….
If you’re running Google AdSense on your site, you might want to show ads only to desktop visitors and hide them on mobile devices. This reduces clutter on smaller screens and can sometimes improve user experience—though test your bounce rates to confirm it actually helps your metrics. Using CSS Media Queries The cleanest approach is…
The HTML5 <video> element is the standard for embedding video content without plugins. It’s supported across all modern browsers and provides native playback controls, accessibility features, and performance benefits. Basic Video Embedding The simplest approach uses the <video> element with a <source> tag: <video controls> <source src=”path/to/file.mp4″ type=”video/mp4″> Your browser does not support the video…
The fclose theme is a lightweight Question2Answer theme distributed as a set of PHP and CSS files. It provides a clean base layout that you can extend with custom styling and icon sets. Getting the Theme Files You need two core files to run fclose: qa-theme.php — The theme class that extends qa_html_theme_base and controls…
You can fetch a webpage as if you’re requesting from a mobile device by setting curl’s User-Agent header to match a mobile browser. Remote servers use the User-Agent header to decide whether to serve mobile or desktop versions of pages. Basic syntax Use the -A (or –user-agent) flag to specify a mobile User-Agent string: curl…
You can use @import with media queries to conditionally load CSS files only for specific viewport sizes. This is useful for loading layout-specific stylesheets, web fonts, or icon libraries only when needed. Basic Syntax The general format is: @import url(‘path/to/file.css’) media-query; The media query parameter controls when the stylesheet loads. Here are practical examples: /*…