Welcome to our daily blog, your daily dose of inspiration, information about cryptocurrency and financing and everything in-between. Shell & Coin is proudly sponsored by Royal Pheromones.

Ondo Finance tokenizes US Treasuries as yield-bearing crypto tokens. Here’s how USDY, OUSG, and the ONDO token work in 2026.

Stacks (STX) brings smart contracts and DeFi to Bitcoin without changing it. Learn how Proof of Transfer, sBTC, and Stacking let you earn real BTC rewards.

What is Sei Network (SEI) crypto? Learn how this L1 blockchain delivers 12,500 TPS, sub-400ms finality, and DeFi-native speed using Twin-Turbo consensus.

A 529 plan is a tax-advantaged education savings account with tax-free growth. Learn how it works, what it covers, and the 2026 rules that changed everything.

A SEP IRA lets self-employed workers contribute up to $72,000 tax-deferred in 2026. Here’s how it works, who qualifies, and how to open one today.

A certificate of deposit (CD) pays a guaranteed fixed rate for locking up your money. Learn how CDs work, current rates, types, penalties, and when to use one.

Learn how to configure Nginx as a reverse proxy on Linux. Covers proxy_pass, headers, SSL termination, WebSocket support, and security hardening with examples.

Step-by-step guide to installing Python on Linux. Covers apt, pyenv, venv, and the PEP 668 externally-managed error on Ubuntu, Debian, and RHEL.

Install Redis on Linux the right way — step-by-step commands for Ubuntu, Debian, and RHEL, plus security hardening and kernel tuning every sysadmin needs.

Learn how to install PostgreSQL on Linux step by step. Covers Ubuntu, Debian, and RHEL with first-login setup, user creation, and remote access config.

Install Node.js on Linux the right way — nvm, apt, or NodeSource. Step-by-step commands for Ubuntu, Debian, RHEL, and Arch. Pick the method that fits your workflow.

Learn how to install K3s on Linux in minutes — single-node and multi-node setup, kubectl access, and deploying your first workload on lightweight Kubernetes.

Learn what inodes are in Linux, why they matter, and how to fix the confusing no space left on device error when df shows plenty of free disk space.

Master the Linux find command with practical examples and real-world use cases. Learn to search files by name, size, permissions, and time. Complete 2025 guide with advanced techniques.

As a Linux system administrator or enthusiast, securing your remote connections should be at the top of your priority list. SSH (Secure Shell) is the backbone of remote administration for Linux systems, but an improperly configured SSH server can leave your system vulnerable to brute force attacks, unauthorized access, and

Master the nohup command in Linux. Learn syntax, real-world examples, output redirection, and how nohup compares to screen, tmux, and disown for background processes.

Protect your Linux server with these 7 open source security tools I personally run on every box. From Lynis auditing to Fail2ban, rkhunter, and Suricata IDS.

Learn how to use the ps command in Linux with real-world examples. Master process monitoring, troubleshooting, and system administration with this essential tool.

Compare the best Linux shells in 2026 — Bash, Zsh, Fish, and Nushell. Find out which shell fits your workflow based on speed, features, and scripting needs.

Learn how to use journalctl in Linux to troubleshoot problems and monitor services. Master filtering by time, service, and priority with real-world examples.

Crypto staking lets you earn 3-20% APY on tokens by securing blockchain networks. Learn how staking works, the risks nobody mentions, and my personal strategy for 2025.

Introduction If you’ve been in crypto long enough, you’ve seen the headlines. Exchange hacks. Frozen withdrawals. Billions vanishing overnight. Finding the best cold storage wallets in 2025 isn’t just smart—it’s essential if you’re serious about protecting your assets. I learned this lesson the hard way. Back in 2015, I had

Okay, let’s settle this once and for all. I’ve been both a day trader and a swing trader, and I’m about to save you years of expensive trial and error. Everyone wants to know whether they should be glued to their screens all day scalping for pennies or holding positions

Learn how to find and execute profitable crypto arbitrage trades from someone who turned 0k into 7k. Real strategies, tools, and warnings about what actually works in 2025.

Learn how to use the ln command in Linux to create symbolic and hard links. Master link types, avoid common mistakes, and manage file system links like a pro.

I tested 12 crypto trading bots with real money. Only 3 made profits. Here’s the truth about automated crypto trading in 2025, including the bots that actually work (with real numbers).

Learn how to use nmap in Linux for network scanning, security audits, and port discovery. Complete guide with examples, best practices, and legal considerations.

Learn what dollar cost averaging is and how it works. Real examples, DCA vs lump sum research, common mistakes, and why this strategy helps investors avoid market timing.

Learn how to use iotop in Linux to monitor disk I/O per process in real time. Install, read output, use key flags, and diagnose disk bottlenecks fast.

Trading earnings with options is like playing Russian roulette with five bullets in the chamber while blindfolded. I know because I’ve pulled the trigger about 200 times, and while I’m still alive, my account has died multiple deaths. I’ve made $15,000 on a single Netflix earnings play and lost $12,000

Learn how to add swap space in Linux using a swap file or swap partition. Step-by-step commands, size recommendations, and swappiness tuning included.

Master the Linux ip command with practical examples. Learn how this modern tool replaced ifconfig for network configuration, routing, and interface management.

Learn how to use Ansible on Linux to automate server setup with playbooks, inventories, and modules. Step-by-step guide with real examples for sysadmins.

Setting up a WireGuard VPN Server on Linux Published: 2025-04-02 by Alice In today’s digital landscape, securing your internet connection is more important than ever. A Virtual Private Network (VPN) encrypts your traffic and masks your IP address, providing a secure tunnel for your data. While there are many commercial

Let me tell you about the time I spent $50,000 on AI trading bots thinking I’d found the cheat code to the market. Spoiler alert: I lost $35,000 and learned that most “AI trading bots” are about as intelligent as a Magic 8-Ball with a subscription fee. But I also

I’m gonna tell you about the strategy that lets me make $8,000-$12,000 per month while checking my phone maybe twice a day. No day trading. No staring at charts for 8 hours. No anxiety attacks when SPY drops 0.5%. No waking up at 4 AM for pre-market. This is swing

Stellar (XLM) is the payments blockchain powering cross-border remittances, USDC, and the DTCC’s 2027 tokenized securities platform. Here’s how it works.

A spot Bitcoin ETF holds real BTC and trades on stock exchanges. Here’s how it works, what it costs, the top funds to know, and who should actually buy one.

Jupiter (JUP) is Solana’s dominant DEX aggregator with $1T+ in volume and 95% market share. Here’s how it works, what JUP does, and if it’s worth your attention.

Injective (INJ) is a Layer 1 blockchain built from scratch for DeFi finance. Learn how its MEV-resistant order book, burn tokenomics, and RWA markets work.

What is Shiba Inu (SHIB)? Learn how this Ethereum meme coin evolved into a DeFi ecosystem with Shibarium L2, ShibaSwap DEX, and a deflationary burn model.

Zero knowledge proofs let you verify truth without revealing data. Here’s how ZK tech powers Ethereum L2 scaling, DeFi privacy, and the future of crypto in 2026.

Set up MetaMask wallet in minutes. Learn how to install it, secure your seed phrase, add custom networks, and avoid the scams that steal from 500 users daily.

What is Hedera HBAR crypto? Learn how hashgraph consensus, the Governing Council, and enterprise use cases make HBAR different from every other blockchain.

Hot wallet vs cold wallet explained: the key differences, real security risks, and which crypto storage strategy makes sense for your holdings.
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