Network

Content Delivery Network

January 15 2022

Content Delivery Network ์ •์˜ ์ง€๋ฆฌ์ ์œผ๋กœ ๋ถ„์‚ฐ๋œ ์—ฌ๋Ÿฌ ๊ฐœ์˜ ์„œ๋ฒ„ ์ปจํ…์ธ ๋ฅผ ์‚ฌ์šฉ์ž์™€ ๊ฐ€๊นŒ์šด ์„œ๋ฒ„์—์„œ ์ „์†กํ•ด ์†๋„๋ฉด์—์„œ ์ด๋“ ์ค‘์•™ ์„œ๋ฒ„์—์„œ ๊ฐœ๋ณ„ ์‚ฌ์šฉ์ž์—๊ฒŒ ์ปจํ…์ธ ๋ฅผ ์ „์†กํ•˜๋ ค๋ฉด ํŠธ๋ž˜ํ”ฝ ๊ณผ๋ถ€ํ•˜ ๋ฐ ์ „์†ก ์†๋„, ์‹œ๊ฐ„ ๋ฌธ์ œ ๋ฐœ์ƒ ํŒŒ์ผ ๋ณต์‚ฌ๋ณธ์„ ์บ์‹ฑํ•˜์—ฌ ๊ฐ ๋ฐ์ดํ„ฐ ์„ผํ„ฐ์— ์ €์žฅ

Socket & Port

October 27 2021

Host ๋„คํŠธ์›Œํฌ์— ์—ฐ๊ฒฐ๋œ ๋ชจ๋“  ์ข…๋ฅ˜์˜ ์žฅ์น˜๋ฅผ Node ๋…ธ๋“œ ์ค‘ IP ์ฃผ์†Œ(๋„คํŠธ์›Œํฌ ์ฃผ์†Œ)๊ฐ€ ํ• ๋‹น๋œ ๊ฒƒ๋“ค์„ Host Host๋“ค๋ผ๋ฆฌ ๋ฐ์ดํ„ฐ๋ฅผ ์†ก์ˆ˜์‹ ํ•œ๋‹ค ๋ฐ์ดํ„ฐ์˜ ์†ก์ˆ˜์‹ ์€ Host๊ฐ€ ์‹คํ–‰ํ•˜๋Š” Process๊ฐ€ ์ˆ˜ํ–‰

Cookie & Session

October 27 2021

์—ฐ๊ฒฐ ์ง€ํ–ฅ vs. ๋น„์—ฐ๊ฒฐ ์ง€ํ–ฅ

Protocol

October 27 2021

ํ”„๋กœํ† ์ฝœ Protocol ๋„คํŠธ์›Œํฌ ํ™˜๊ฒฝ ๋‚ด ๋ชจ๋“  ๊ธฐ๊ธฐ๊ฐ€ ์„œ๋กœ ํ†ต์‹ ํ•˜๋ฉฐ ๋ฐ์ดํ„ฐ๋ฅผ ์ฃผ๊ณ  ๋ฐ›์œผ๋ ค๋ฉด, ๊ฐ ๊ธฐ๊ธฐ์—๋Š” ์‚ฌ์ „ ํ˜‘์˜๋œ ํ†ต์‹  ํ˜‘์•ฝ/๊ทœ์•ฝ์ด ํ•„์š” ์ปดํ“จํ„ฐ๋‚˜ ์›๊ฑฐ๋ฆฌ ํ†ต์‹  ์žฅ๋น„ ์‚ฌ์ด์—์„œ ๋ฉ”์‹œ์ง€๋ฅผ ์ฃผ๊ณ  ๋ฐ›๋Š” ์–‘์‹๊ณผ ๊ทœ์น™์˜ ์ฒด๊ณ„ ์‹ ํ˜ธ ์ฒด๊ณ„, ์ธ์ฆ, ๊ทธ๋ฆฌ๊ณ  ์˜ค๋ฅ˜ ๊ฐ์ง€ ๋ฐ ์ˆ˜์ • ๊ธฐ๋Šฅ์„ ํฌํ•จ ๊ตฌํ˜„๋˜๋Š” ๋ฐฉ๋ฒ•์€ ๋…๋ฆฝ์ ์ด๋‚˜, ํ•˜๋“œ์›จ์–ด ๋˜๋Š” ์†Œํ”„ํŠธ์›จ์–ด ๊ทธ๋ฆฌ๊ณ ...

HTTP

October 27 2021

HTTP HyperText Transfer Protocol HTML ๋ฌธ์„œ์™€ ๊ฐ™์€ ๋ฆฌ์†Œ์Šค๋“ค์„ ๊ฐ€์ ธ์˜ฌ ์ˆ˜ ์žˆ๋„๋ก ํ•ด์ฃผ๋Š” ํ”„๋กœํ† ์ฝœ Plain text๋กœ๋ถ€ํ„ฐ JSON ๋ฐ์ดํ„ฐ ๋ฐ XML๊ณผ ๊ฐ™์€ ํ˜•ํƒœ์˜ ์ •๋ณด๋„ ์†ก์ˆ˜์‹  ๊ฐ€๋Šฅ ๋ณดํ†ต์€ ํด๋ผ์ด์–ธํŠธ๊ฐ€ ์–ด๋–ค ์ •๋ณด๋ฅผ HTML ํ˜•ํƒœ๋กœ ๋ฐ›๊ณ  ์‹ถ์€์ง€, JSON ํ˜•ํƒœ๋กœ ๋ฐ›๊ณ  ์‹ถ์€์ง€ ๋ช…์‹œ ...

๋™๊ธฐ/๋น„๋™๊ธฐ & ๋ธ”๋ก/๋…ผ๋ธ”๋ก

February 08 2020

๊ฐœ๋… ๋™๊ธฐ vs ๋น„๋™๊ธฐ ์ฒ˜๋ฆฌํ•ด์•ผ ํ•  ์ž‘์—…๋“ค์„ ์–ด๋– ํ•œ โ€˜ํ๋ฆ„โ€™์œผ๋กœ ์ฒ˜๋ฆฌ ํ•  ๊ฒƒ์ธ๊ฐ€์— ๋Œ€ํ•œ ๊ด€์  ๋ธ”๋กœํ‚น vs ๋…ผ๋ธ”๋กœํ‚น ์ฒ˜๋ฆฌ๋˜์–ด์•ผ ํ•˜๋Š” (ํ•˜๋‚˜์˜) ์ž‘์—…์ด, ์ „์ฒด์ ์ธ ์ž‘์—… โ€˜ํ๋ฆ„โ€™์„ ๋ง‰๋Š๋ƒ ์•ˆ๋ง‰๋Š๋ƒ์— ๋Œ€ํ•œ ๊ด€์ 

Network Terminolgy์™€ OSI Model

January 13 2020

๋„คํŠธ์›Œํฌ Network ์ปดํ“จํ„ฐ ๋„คํŠธ์›Œํฌ ๋˜๋Š” ์ปดํ“จํ„ฐ๋ง์€ ๋…ธ๋“œ๋“ค์ด ์ž์›์„ ๊ณต์œ ํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•˜๋Š” ๋””์ง€ํ„ธ ์ „๊ธฐํ†ต์‹ ๋ง์˜ ํ•˜๋‚˜

TCP vs. UDP

January 13 2020

TCP๋ž€?(Transmission Control Protocol) ์ธํ„ฐ๋„ท์„ ๊ฒฝ์œ ํ•ด ํ†ต์‹ ํ•˜๋Š” ์—ฐ๊ฒฐ ์ง€ํ–ฅ์„ฑ ํ”„๋กœํ† ์ฝœ ์—๋Ÿฌ ์ฒดํ‚น์„ ์ง€์› ๋ฐ์ดํ„ฐ์˜ ์™„์ „ํ•œ ์ „์†ก์„ ๋ณด์žฅ ํŒจํ‚ท์˜ ์ „์†ก ์ˆœ์„œ๋ฅผ ๋ณด์žฅ TCP๋Š” FLOW CONTROL์„ ์ œ๊ณตํ•จ