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10 Essential Linux Commands Every Beginner Should Know: Your Path to Linux Mastery

Mastering essential Linux commands can help beginners gain confidence in navigating and controlling their systems efficiently.
The CLI offers efficiency, automation, remote access, and consistency, making it crucial in Linux learning.
Key commands like ls (list directory contents), cd (change directory), and pwd (print working directory) aid in navigation.
Commands such as mkdir (make directory), cp (copy), and mv (move or rename) assist in file management.
rm (remove) demands caution, while grep (search for patterns) and cat (concatenate files) help in text manipulation.
sudo (execute commands as superuser) is vital for system-level operations, and chaining commands with pipes and redirects enhances productivity.
Learning common Linux patterns like finding large files, checking disk space, and monitoring processes further enhances skills.
Guidance on seeking help, understanding paths, file searches, and resource monitoring are highlighted for beginners.
Tips on safe file deletion and suggestions for advancing Linux skills through practice, scripting, and community interaction are provided.
Taking gradual steps in mastering Linux commands opens doors to automation, complex operations, and Linux's full potential.
Exploring further with a cheat sheet, practice, shell scripting, package management, and community engagement is recommended for Linux mastery.

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TechViral

428

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How To Remotely Wipe All Data From Lost or Stolen Laptop

To remotely wipe all data from a lost or stolen laptop, you can follow these steps:
Enable the Find My Device feature on Windows, which allows you to locate and lock your device remotely, but does not provide the option to wipe data.
Consider using third-party software like Prey, which offers anti-theft, data recovery, and device tracking features, including the ability to remotely wipe data from a laptop.
It is important to configure your device with Prey or any other third-party software in advance for remote wiping to work.

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Dev

343

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Understanding Root vs. Non-Root Users, Docker, and Fixing ECR Authentication Issues

Root vs. Non-Root Users: Root user in Linux has unlimited privileges, while non-root users have limited permissions in Docker.
ECR Token Expiration: The 'authorization token has expired' error often stems from differences in user interactions with Docker and ECR.
Fixing Token Expiration Error: Solutions include running Docker commands without sudo, authenticating as root, or using Docker credential helper.
Best Practices: Recommendations include avoiding sudo with Docker, utilizing a credential helper, rotating AWS credentials, monitoring token expiry, and using IAM roles for EC2 instances.
Root User Significance: Root user possesses immense power but requires caution, while the non-root user operates within boundaries with freedom.
Balancing Act: Working with Docker and ECR involves managing trust, permissions, and wisdom to navigate the DevOps landscape effectively.
Philosophical Reflection: Root user symbolizes power, non-root user signifies wisdom; the interplay mirrors life's balance between boldness and restraint.
Guiding Principles: Embrace curiosity, break barriers, but stay grounded to uphold system integrity and continuous learning.
Key Message: Strive for growth and innovation while respecting boundaries and foundational knowledge in your DevOps journey.
Closing Words: Embrace the duality of power and wisdom in your pursuits, and remember to remain curious, mindful, and rooted in knowledge.

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TechViral

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How to Enable & Use BitLocker to Go on Windows 11

On Windows 11, you can use BitLocker to encrypt your drive.
BitLocker To Go is the same BitLocker functionality, but it’s meant to encrypt removable data drives.
To encrypt a USB drive with BitLocker on Windows 11, go to Settings, click on the System tab, select Storage, and then follow the steps provided.
To access the encrypted USB drive, enter the password when prompted.

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Medium

311

Optimizing System Performance: The Shift from Blocking to Asynchronous Processing

Node.js is built on top of libuv, which is the library that abstracts platform‐specific asynchronous I/O.
PostgreSQL's implementation involves two critical data structures: Write-Ahead Log (WAL) and shared buffers.
Operating system caching helps reduce write amplification factor (WAF) and optimizes disk I/O.
PostgreSQL's asynchronous commits improve transaction throughput by hiding I/O latency and operating at memory speeds.

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Medium

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My Linux Tool Journey: Exploring Essential Tools ✨

Stacer is a powerful system optimizer and resource monitor designed for Linux. It simplifies system management and improves performance.
TimeShift is a reliable backup utility that allows you to take system snapshots and restore them when needed. It ensures quick recovery in case of failures.
NeoFetch is a command-line tool that displays detailed system information in a visually appealing way. It is useful for showcasing system specs and troubleshooting hardware-related issues.
Brave Browser is a privacy-centric web browser that blocks ads and trackers by default. It offers a secure and efficient browsing experience with built-in ad and tracker blocking.

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Dev

284

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How to free up space on your Mac's ssd (256GB)

If you have a Mac with a 256GB SSD, you might notice that your storage fills up quickly.
A guide to free up space on Mac's SSD using a built-in Terminal command and the CleanMyMac app.
Steps include using the 'du' command to find big files, deleting unnecessary files using the 'rm' command, using CleanMyMac for easy cleanup, and additional tips to free up space.
By following these steps, you can easily free up gigabytes of space on your Mac's SSD.

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Ubuntu

Faizul "Piju" 9M2PJU: QLog: A Comprehensive Amateur Radio Logging Application for the Modern Ham

QLog is an open-source logging application for amateur radio operators available for Linux and Windows platforms.
QLog offers features such as station integration, online services integration, customizable GUI, various operating features, and platform support for Linux, Windows, and experimental support for MacOS.
It has a clean and uncluttered interface combined with powerful features, and it stores logging data efficiently using an SQLite backend.
QLog is free, open-source, actively maintained, and licensed under the GNU General Public License v3.0.

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Ubuntu

325

Faizul "Piju" 9M2PJU: Exploring Reticulum MeshChat: A Decentralized, Resilient Communication Tool

Reticulum MeshChat is a decentralized, resilient communication tool built on the Reticulum network.
It enables peer-to-peer messaging over a distributed network, making it ideal for remote areas or during emergencies.
Key features include decentralized communication, mesh networking support, and easy setup.
The future possibilities for MeshChat include improved mobile support, enhanced encryption, and wider compatibility with different hardware platforms.

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Siliconangle

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Broadcom momentum sparks renewed investor enthusiasm

Broadcom's momentum in the market has sparked renewed investor enthusiasm following impressive fiscal first-quarter results and a positive response from shareholders.
Broadcom is navigating market transitions effectively, with a focus on high-growth sectors like AI and strategic partnerships with hyperscalers and VMware.
The company's approach to VMware acquisition has shown focus on core products, elevated pricing strategies, and increased customer value, though some customers have faced subscription model transitions.
Broadcom's CEO, Hock Tan, is recognized for executing strategic moves in alignment with company plans, driving financial stakeholder confidence.
Broadcom's strategy in AI and software growth, combined with a focus on connectivity technologies for AI workloads, positions the company for continued success.
Financially, Broadcom has shown significant growth in software revenue, improving margins, and increasing operating efficiency.
The company's strategic positioning in AI-driven workloads and custom silicon design wins from hyperscalers indicates a strong outlook for future growth.
Despite regulatory risks and uncertainties, Broadcom's diversified approach and profitable enterprise make it an appealing investment opportunity for investors.
Broadcom's focus on infrastructure for AI, networking solutions, and advancements in custom silicon design are key factors driving its competitive edge in the market.
Overall, Broadcom's market positioning, financial performance, and strategic partnerships indicate a bullish outlook with considerations for regulatory challenges.
Investors are encouraged to evaluate Broadcom's software strategy, on-prem infrastructure partnerships, and risk tolerance amidst regulatory uncertainties to make informed investment decisions.

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Cultofmac

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Should you buy the 2025 Mac Studio with M3 Ultra or M4 Max?

Upgrading from an Intel-based pro Mac to the 2025 Mac Studio is recommended.
For those currently using an M1 Mac Studio, the M3 Ultra and M4 Max models offer a significant boost in performance.
The 2025 Mac Studio supports higher specifications, including Thunderbolt 5 ports and increased storage options.
Owners of the M2 Mac Studio may not find the upgrades worthwhile and can wait for a future revision.

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TechViral

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How to Change Drive Letter in Windows 11

To change drive letters in Windows 11, you can use the Disk Management tool or the Settings app.
In the Settings app, go to System > Storage > Advanced Storage Settings > Disks & Volumes > Properties > Change Drive Letter.
In the Disk Management tool, right-click on the desired drive > Change Drive Letters and Paths > Change > Assign the new drive letter > Apply.
Note that changing drive letters may affect certain software, so you may need to fix broken shortcuts or reinstall programs.

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TechViral

425

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6 Best Ways to Switch User Accounts in Windows 11

Windows 11 provides several methods to switch user accounts without closing any apps or files.
Switch accounts from the Start Menu by clicking on the user profile.
Switch user accounts from the Lock Screen by clicking on the user account.
Shortcut keys ALT+F4 and CTRL+ALT+Delete can also be used to switch user accounts.
Windows Task Manager can be used to switch user accounts by right-clicking on the desired account.
Command Prompt utility can be used to switch user accounts by executing the 'tsdiscon' command.

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Hackersking

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New Telegram Vulnerability Evil-Dropper | CVE 2025-1450 Full Details and POC

Telegram-EvilDropper is an exploit that abuses Telegram’s MP4 preview feature to redirect users to a website of the attacker's choice.
Possible attack scenarios include phishing pages, malware drops, and IP & device tracking.
To set up Telegram-EvilDropper for ethical research, clone the repository, install required dependencies, configure the redirect, generate the exploit file, and deploy the attack for testing purposes.
Remember, this information should be used for educational purposes only and misusing it for malicious activities is illegal.

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Macstories

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Notes on the Apple Intelligence Delay

Simon Willison suggests that the delay in Apple Intelligence's Siri personalization features may be related to security concerns, particularly prompt injection attacks.
Prompt injection attacks involve the risk of attackers subverting tools and using them to harm or extract a user's data.
Willison has previously written about prompt injection attacks, highlighting vulnerabilities in AI systems like Mail's AI summaries and Writing Tools.
There are doubts about Apple's position in the AI space and concerns about Siri potentially damaging Apple's software reputation.
Some speculate that Apple may scrap the delayed Apple Intelligence features and rebuild a new system from scratch due to internal concerns.
There is a debate within Apple about the need for more powerful AI models running on devices, potentially straining hardware and affecting performance.
Challenges include managing user's personal context across different apps and potential hardware limitations, such as RAM.
Apple and Google have contrasting approaches to AI, with Apple's announcements being theoretical while Google's are already in use.
Apple may need to adjust its marketing strategy in response to challenges with LLMs and AI implementation.
Expectations are high for Apple's developments in AI at WWDC 2025 and beyond, especially in terms of hardware improvements and cloud computing.

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