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In-depth explorations of real-world system design challenges and solutions

System Design

5 min read

saurav9760

Jul 30, 2025

Rainbow Table Attack: A Detailed Guide

Rainbow Table Attack reverses hashed passwords using precomputed tables. Faster than brute-force, but ineffective against salted & slow hashes (bcrypt/PBKDF2). Defense: Always salt + stretch passwords!

721 24

The Ultimate Guide to Text Encoding: How Computers Understand Our Words

System Design

5 min read

saurav9760

Jul 29, 2025

The Ultimate Guide to Text Encoding: How Computers Understand Our Words

How do computers understand our words, emojis, and symbols? Through text encoding - the process that translates human-readable characters into binary (0s and 1s). This guide explores key encoding methods including: ASCII , UTF-8, Base64, Url Encoding,

662 24

How to Securely Store Passwords in a Database: A Comprehensive Guide

System Design

5 min read

saurav9760

Jul 29, 2025

How to Securely Store Passwords in a Database: A Comprehensive Guide

Learn how to securely store passwords in a database with this comprehensive guide. Discover best practices like using Argon2 or bcrypt, salting, and key stretching. Avoid common pitfalls and implement robust security with step-by-step Python and Node.js examples. Protect user data effectively!

575 24

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Results for "DynamoDB"

Found 4 articles matching your search

Understanding ACID Transactions in Databases — The Complete Guide

System Design

saurav9760

Oct 26

Understanding ACID Transactions in Databases — The Complete Guide

Dive into the world of ACID transactions in databases with this comprehensive guide. Learn how Atomicity, Consistency, Isolation, and Durability ensure reliable and safe database operations, preventing issues like partial updates and data corruption.

#ACID transactions #database reliability #Atomicity

Understanding Distributed Locking: A Simple Guide

Distributed locking ensures that multiple processes in a distributed system access shared resources without conflicts. This guide explains what distributed locking is, why it’s needed, how it works, and tools like ZooKeeper, Redis, and Etcd that make it happen.

#Distributed Locking #Distributed Systems #Concurrency

Understanding Single Point of Failure (SPOF)

A Single Point of Failure (SPOF) can bring an entire system to a halt if it breaks. This guide explains what SPOFs are, where they hide in hardware, software, and third-party services, and how to eliminate them using redundancy, replication, and automation. Learn practical steps to build a reliable.

#Single Point of Failure #SPOF #Reliability

Consistent Hashing Explained

Consistent Hashing minimizes data movement in distributed systems using a hash ring for key-server mapping. Virtual nodes improve load balancing; MD5 or MurmurHash ensures even distribution. Paired with replication, it enhances fault tolerance in systems like DynamoDB. Tuning VNodes optimizes scalab

#Consistent Hashing #Distributed Systems #Hash Ring

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