The Ultimate Developer’s Cheat Sheet Collection: Code Smarter, Not Harder

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[ System Design — Cheat Sheet ]
𝐒𝐲𝐬𝐭𝐞𝐦 𝐃𝐞𝐬𝐢𝐠𝐧 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬
📌 𝐍𝐞𝐭𝐰𝐨𝐫𝐤𝐢𝐧𝐠
◾ DNS — Domain Name System (resolvers, nameservers, records)
◾ Load Balancers — Hardware, software, Layer 4, Layer 7
◾ CDNs — Content Delivery Networks (caching, edge servers)
◾ Proxies — Forward, reverse, transparent, anonymous
◾ VPNs — Virtual Private Networks (tunneling protocols)
◾ Firewalls — Packet filtering, stateful inspection
◾ NAT — Network Address Translation
◾ Gateways — Connect different networks
◾ Routers — Direct traffic between networks

📌 𝐒𝐭𝐨𝐫𝐚𝐠𝐞
◾ Databases — SQL, NoSQL (key-value, document, columnar, graph), NewSQL
◾ Object Storage — Amazon S3, Google Cloud Storage, Azure Blob Storage
◾ Block Storage — Network-attached storage (NAS), storage area networks (SAN)
◾ File Systems — Distributed file systems (HDFS, Ceph), Network File System (NFS)
◾ Caching — Redis, Memcached, Varnish, CDN edge caches