What Is a Certificate of Deposit (CD): Guaranteed Returns Explained
Alexa Velin
June 7, 2026
Root access to modern finance.
Root access to modern finance.
The Graph (GRT) is the indexing protocol powering most of DeFi. Learn how subgraphs, indexers, curators, and GRT tokenomics actually work.
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.
Dollar cost averaging (DCA) in crypto means buying fixed amounts at regular intervals. Learn how it works, when it beats lump sum, and how to start today.
Learn how Ethereum staking works, the 4 methods to earn ETH rewards, current APY rates (3-5%), real risks, and IRS tax rules. No 32 ETH needed for most.
Learn how Worldcoin (WLD) uses iris scans to verify human identity, what World ID enables, how World Chain works, and the privacy risks you need to know.
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 how to set up Samba on Linux step by step — smb.conf, user setup, firewall rules, SELinux context, and connecting Windows and Linux clients.
Learn to use Btrfs on Linux — create subvolumes, take snapshots, enable zstd compression, and run scrubs. Practical commands for every Linux admin.
Learn how to configure AppArmor on Linux—check status, create custom profiles, switch between modes, and harden your system with real command examples.
Learn how to configure SELinux on Linux: check and switch modes, manage file contexts, troubleshoot denials, and use booleans to harden your servers.
Learn how to set a static IP in Linux using Netplan, nmcli, or /etc/network/interfaces — with working examples for Ubuntu, RHEL, Rocky, and Debian.
Master the Linux tar command with practical examples. Learn to create, extract, and compress archives using tar, gzip, and bzip2. Complete guide for beginners and sysadmins.
I still remember the first time a user complained that “the internet was slow.” Fresh out of college, armed with my shiny new CS degree, I confidently ran ping and saw… perfectly fine response times. The problem? I was only checking if the destination was reachable, not where along the
Set up Prometheus, Node Exporter, and Grafana on Linux step by step. Get a live CPU, RAM, and disk monitoring dashboard in under 30 minutes.
Learn how to create and manage systemd timers in Linux — a powerful cron alternative with better logging, dependency support, and missed-run recovery.
Master the ls command in Linux with this complete guide. Learn essential options, advanced techniques, common mistakes, and real-world examples from 15 years of system administration.
Learn how to use netstat command in Linux to monitor network connections, check listening ports, and troubleshoot network issues. Includes modern alternatives.
Learn what a high yield savings account is and how it earns 10-15x more than traditional banks. Real examples, FDIC insurance explained, and setup guide for 2025.
Master iptables firewall in Linux with practical examples for SSH, HTTP security. Learn chains, tables, rules from a sysadmin who locked herself out twice.
I tested 4 Linux terminal multiplexers in 2026 — tmux, Zellij, GNU Screen, and Byobu — ranked by real sysadmin workflows and homelab use.
Learn how to use logrotate in Linux to automate log rotation, prevent disk space disasters, and keep your servers running smoothly. Step-by-step guide with examples.
Learn how to use the free command in Linux to monitor memory usage, interpret available vs used memory, and avoid common mistakes. Practical examples for sysadmins.
I’ll never forget the first time I had to mount an external drive in production at 2 AM. The backup server was running out of space, and I needed to add a new disk fast. I fumbled through the mount command, second-guessing every flag, triple-checking the UUID before adding it
Monitor CPU, memory, disk I/O, and network—historically. Learn how to install sysstat and use the sar command in Linux to analyze past performance.
Learn how to use fdisk in Linux to create, delete, and manage disk partitions. Step-by-step guide covering mkfs, fstab, and partition best practices.
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
Use the Linux SSH config file (~/.ssh/config) to create aliases, configure ProxyJump, and manage multiple servers without typing long commands.
I spent three years with my charts looking like a Jackson Pollock painting – 15 different indicators, 8 moving averages, Fibonacci levels everywhere, trend lines crossing like spaghetti. You know what all those indicators told me? Absolutely nothing useful. They contradicted each other constantly, and I lost $30,000 paralyzed by
Learn how to use the alias command in Linux to create custom shortcuts, automate repetitive tasks, and boost your command-line productivity with permanent aliases.
Master the Linux chmod command with practical examples. Learn symbolic and numeric modes, common permission patterns, and avoid security mistakes. Complete 2025 guide.
Master the Linux date command: formatting output, date arithmetic, Unix timestamps, timezones, and real bash scripting examples for sysadmins.
Master the Linux grep command with practical examples and real-world use cases. Learn essential options, regex patterns, and advanced techniques for searching text like a pro.
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.
Looking for the best Linux email client in 2026? I tested 6 options on my homelab — from Thunderbird to NeoMutt. Here’s which one fits your workflow.
Learn the Linux cat command with real examples: view files, concatenate, create with heredoc, and avoid the useless use of cat anti-pattern.
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.
Aptos is a Layer-1 blockchain built by ex-Meta engineers using the Move language. Learn how APT, Block-STM, and real-world asset adoption make it unique.
ZKsync is Ethereum’s leading ZK rollup: lower fees, instant finality, and native account abstraction. Here’s exactly how it works and whether you should use it.