Shell & Coin Blog
Every Linux guide, crypto explainer and review we have published, newest first.
Page 12 of 21
-
How to Use Support and Resistance in Crypto Trading (The Levels That Saved Me $15,000)
Learn how to identify and trade support and resistance levels in crypto. Master zones, breakouts, and role reversal with real Bitcoin examples from a trader who learned the…
-
What is MEV in Crypto (And How Bots Stole $3,000 from My Swap)
MEV (Maximal Extractable Value) lets bots reorder transactions for profit. Learn how sandwich attacks work, why you're paying an invisible tax, and how to protect yourself.
-
How to Use tcpdump Command in Linux: The Packet Analyzer Every Admin Needs
Master tcpdump to capture and analyze network traffic on Linux. Learn filters, real-world examples, and troubleshooting techniques every sysadmin needs to know.
-
How to Use Volume Profile in Trading (The Market X-Ray I Wish I’d Known in 2018)
Learn how to use volume profile to find high-probability trade entries. Step-by-step guide with crypto examples, common mistakes, and strategies that actually work.
-
How to Use Docker on Linux: The Complete Beginner Guide
Learn how to install, configure, and use Docker on Linux with this comprehensive beginner guide. Includes essential commands, best practices, and troubleshooting tips.
-
How to Use Bollinger Bands in Crypto Trading (The Volatility Indicator That Caught the Bitcoin Top)
Learn how to use Bollinger Bands for crypto trading. Discover proven strategies, optimal settings, and how to avoid the mistakes that cost me $8,000.
-
What Are Crypto Market Makers (And Why They Control Every Price You See)
Discover how crypto market makers control prices through bid-ask spreads, liquidity provision, and algorithmic trading—plus the dark side of wash trading and manipulation.
-
How to Use screen Command in Linux: Keep Your Sessions Running
Learn how to use the screen command in Linux to manage terminal sessions, run long processes, and recover from SSH disconnects. Complete guide with examples.
-
What is Open Interest in Crypto Trading (And How It Saved Me from a $18,000 Liquidation Cascade)
Learn what open interest means in crypto trading and how to use it to predict market moves. Discover how tracking OI helped me avoid massive losses in 2025's…
-
How to Understand Linux File Permissions: The Complete Beginner’s Guide
Master Linux file permissions with this complete guide. Learn to read rwx notation, avoid chmod 777 mistakes, and secure your system properly.
-
How to Set Up fail2ban on Linux: Protect Your Server from Brute Force Attacks
Learn how to set up fail2ban on Linux to automatically block brute force attacks. Complete guide with installation, configuration, and troubleshooting for Ubuntu, Debian, and CentOS.
-
What is Crypto Swing Trading (And Why It Finally Made Me Profitable)
Discover what crypto swing trading is, how it works, and why it's perfect for traders who can't watch charts all day. Learn the strategies that turned my losses…
-
What Are Crypto Whales (And How to Track Their Moves)
Crypto whales control billions in assets and move markets with single trades. Learn what whales are, how to track them, and the costly mistakes I made following their…
-
What is MACD Indicator in Crypto Trading (And Why I Ignored It Until Missing a $15,000 Rally)
Learn what MACD indicator is and how to use it in crypto trading. Includes settings, signals, common mistakes, and real backtest data from a working trader.
-
What Are Crypto Trading Pairs (And Why I Bought $500 of the Wrong Token My First Week)
Learn what crypto trading pairs are, how to read BTC/USDT and other pairs, and avoid the costly mistakes I made. Complete beginner's guide with examples.
-
What is Crypto Arbitrage Trading (And Why I Stopped Chasing Every Spread)
Crypto arbitrage trading exploits price differences across exchanges. Learn how it works, realistic profit expectations in 2025, and why automation is non-negotiable.
-
What is Proof of Stake (And Why I Stopped Worrying About Missing the Ethereum Merge)
Discover what proof of stake is, how it works, and why Ethereum switched from PoW. Learn about staking rewards, risks, and whether PoS cryptos belong in your portfolio.
-
What is Relative Strength Index (RSI) in Crypto (And Why I Stopped Trusting It Blindly)
Learn what RSI (Relative Strength Index) means in crypto trading. I'll explain overbought/oversold signals, divergence strategies, and the mistakes that cost me $6,000.
-
How to Read Bitcoin Fear and Greed Index (The Sentiment Tool That Saved Me from FOMO)
Learn how to read the Bitcoin Fear and Greed Index with this step-by-step guide. Discover how I use this sentiment tool to time entries and exits, avoid FOMO,…
-
What is Crypto Leverage Trading (And Why It Nearly Destroyed My Portfolio)
Learn what crypto leverage trading is, how it works, and why 100x leverage wiped out $20B in 2025. A complete guide to using leverage safely (or avoiding it…
