All notes
These are my technical notes and reference materials focused on notes. These articles serve as a personal knowledge base, covering fundamental concepts, protocols, and practical implementations I've encountered in my work as a developer.
The goal of these notes is to break down complex topics into clear, digestible summaries that are easy to refer back later.
53 Articles tagged with All notes
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Essential Grocery Apps | Instacart, Weee!, and More —
A guide to the essential apps for grocery delivery and maximum savings in the US, including Instacart, Weee!, and store-specific rewards.
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SF Bay Area Transit Clipper | BART, MUNI, Caltrain, and VTA —
Navigating San Francisco Bay Area public transit with the Clipper card.
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Is Costco Worth It? | Bulk Shopping and Membership Tiers —
Navigating the world of bulk shopping at Costco and deciding if the membership is worth it.
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Best ways to send Money home | Remitly, Wise, Xoom, Crobo —
A comparison of reliable money transfer services for sending money from the US to India.
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US Health Insurance | PPO, HMO, and HDHP Explained —
Navigating the complex world of US health insurance for new employees.
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The Magic of the HSA | Triple Tax-Advantaged Investing —
How a Health Savings Account (HSA) acts as a "Triple Tax-Advantaged" investment tool.
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401(k) Investing | Employer Match & Tax Savings —
Understanding the US retirement system and why you should maximize your 401(k) match.
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The Power of a Library Card | Free Books, Movies, and More —
Discover the hidden benefits of a local library membership in the US, from free books and movies to museum passes and tool libraries.
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Furnishing on a Budget | OfferUp —
Learn how to buy and sell used items safely using the OfferUp app, the perfect way to furnish your first apartment on a budget.
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Bilt 2.0 for Rent | Earn Points on Rent Without Fees —
Learn how to earn valuable travel points and Bilt Cash on your rent without paying any transaction fees using Bilt 2.0.
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Bank of America CC | Customized Cash Rewards —
Moving from a secured card to a Bank of America credit card as you build your score.
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Setting Up Home Internet | Xfinity, AT&T Fiber, and More —
Setting up your home internet connection with providers like Xfinity or AT&T Fibers.
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US Driver's License | DMV, Written Test, and Driving Test —
A comprehensive guide on the steps required to obtain your US Driver's License as an H1B holder, from the written test to the driving exam.
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Understanding the SSA | Your Lifelong Financial Partner —
Understanding the role of the Social Security Administration (SSA) beyond the initial SSN application.
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USCIS and i-94 | Tracking Your Status —
Navigating the USCIS website and importance of tracking your immigration status.
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State ID / Real ID | Getting Your First ID —
A guide on how to obtain your State ID or Real ID as a non-driver in the US, including documentation requirements and the importance of a gold star.
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Social Security Number | Getting Your SSN —
The process of applying for your Social Security Number (SSN) as a new immigrant.
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Gas and Electric | Setting Up PG&E —
Setting up your PG&E (Pacific Gas and Electric) account for your new home.
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Opening Your US Bank Account | BoFA Guide —
How to open a BoFA bank account using just your passport and i797B document.
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Finding Your Home | Renting Your First US Apartment —
Navigating the housing market and renting your first apartment in the US.
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Getting Your First US SIM Card | Staying Connected —
A guide to getting your first US mobile connection upon arrival, including popular carrier options and the difference between pre-paid and post-paid plans.
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Starting Credit History | Zolve CC —
How Zolve helps immigrants start their credit history in the US even before they land.
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BGP Explained | How the Global Internet Stays Connected —
Border Gateway Protocol (BGP) determines routing between large networks and keeps the global internet connected.
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IPv6 Explained | The Future of Internet Addressing —
IPv6 replaces IPv4 with a vastly larger address space and improved routing efficiency.
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WebSockets Explained | Real-Time Communication on the Web —
WebSockets provide persistent, two-way connections for real-time web communication.
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Caching Explained | How the Internet Avoids Repeated Work —
Caching stores frequently used data temporarily to speed up load times and reduce bandwidth.
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Proxy Servers Explained | Security and Anonymity —
A proxy intermediates client-server communication for caching, security, traffic control, or anonymity.
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Load Balancing Explained | Distributing Traffic Efficiently —
Load balancing spreads traffic across servers to improve reliability, prevent overload, and enable scaling.
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VPN Explained | How Secure Tunnels Work —
A VPN creates an encrypted tunnel to protect traffic and provide secure remote access and privacy.
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CDN Explained | How Content Loads Faster Globally —
A Content Delivery Network (CDN) caches and serves content from locations near users to reduce latency.
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Firewall Explained | How Networks Control Traffic —
Firewalls filter and control network traffic to enforce security boundaries and block threats.
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DHCP Explained | How Devices Get IP Addresses Automatically —
DHCP automatically assigns IP configuration (address, gateway, DNS) to devices on a network.
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NAT Explained | How Multiple Devices Share One Public IP —
NAT allows many devices on a private network to share one public IP for internet access.
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Switching Explained | How Network Switches Move Data —
Understand how network switches work, the difference between hubs and switches, MAC tables, broadcast domains, and VLANs.
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ARP Explained | How IP Addresses Find MAC Addresses —
Learn about Address Resolution Protocol (ARP), how it maps IP addresses to MAC addresses, and why it's essential for local network communication.
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MAC Addresses | How Local Devices Identify Each Other —
A comprehensive guide to MAC addresses, their structure (OUI vs Device ID), their role in local networks, and how they differ from IP addresses.
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Network Ports Explained | Addressing Applications —
Learn what network ports are and how they allow multiple applications to share a single IP address.
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UDP Explained | The Fast Transport Protocol —
Learn what UDP is, how it works, and why it is used for real-time applications like video calls and gaming.
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TCP/IP Explained | The Foundation of the Internet —
Understand how TCP and IP work together to deliver data reliably across the internet.
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HTTP/3 Explained | The Future of Web Speed —
Explore HTTP/3, the latest web protocol built on QUIC for faster, more reliable connections.
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HTTPS Explained | Secure Browsing —
Learn what HTTPS is, how it uses TLS for security, and why it is essential for modern websites.
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SSL and TLS Explained | Web Encryption —
Discover how SSL and TLS encrypt data to make the web secure for passwords, payments, and privacy.
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HTTP Explained | How Browsers Talk to Servers —
A guide to the Hypertext Transfer Protocol (HTTP), detailed methods, status codes, and headers.
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Network Packets Explained | Digital Data chunks —
Understand what network packets are, why data is split into chunks, and how they travel across the internet.
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Domain Registration | How to Register and Manage —
Learn how domain names are registered, managed, and connected to websites. Understand registrars, registries, DNS, and nameservers.
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How Hosting Works | Web Servers and Hosting Explained —
Learn how web hosting works, types of hosting, web servers, and how hosting connects to domain names through DNS.
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DNS Explained | Domain Names to IP Addresses —
Learn how DNS converts domain names to IP addresses. Understand DNS servers, records, lookup process, caching, and security.
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Routing Basics | How Packets Find Their Path —
Learn how routing works, how packets find their path across networks, routing tables, static vs dynamic routing, and BGP basics.
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Subnetting | How Networks are Divided and Organized —
Learn how subnetting divides networks into smaller parts. Understand network bits, host bits, CIDR notation, and subnet masks.
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IP Address | How Devices are identified on the Internet —
Learn what IP addresses are, how they identify devices, IPv4 vs IPv6, public vs private IPs, subnetting, NAT, and routing basics.
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What is Networking | Connecting Multiple Devices —
Learn computer networking basics like how devices connect, switching methods, network types, topologies, and the OSI model.
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Data Communication | How Computers Exchange Information —
Learn how digital data travels through bits, signals, encoding, and protocols. A beginner-friendly guide to data communication.
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What is Communication | The Foundation of Networking —
Learn how communication works and why it's the starting point for understanding computer networks and the Internet.
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