๋ถ„๋ฅ˜ ์ „์ฒด๋ณด๊ธฐ

    OSI ์ฐธ์กฐ ๋ชจ๋ธ(OSI 7 Layer)๊ณผ TCP/IP

    1. OSI ์ฐธ์กฐ ๋ชจ๋ธ(OSI 7 Layer) OSI 7 ๊ณ„์ธต ๊ณ„์ธต ๊ณ„์ธต ์ด๋ฆ„ ์—ญํ•  ๋„คํŠธ์›Œํฌ ์žฅ๋น„ ์ฃผ์š” ํ”„๋กœํ† ์ฝœ 7 ์‘์šฉ ๊ณ„์ธต ์ธํ„ฐํŽ˜์ด์Šค์˜ ์—ญํ• ์„ ํ•˜์—ฌ ์‚ฌ์šฉ์ž๊ฐ€ ์ปดํ“จํ„ฐ์—์„œ ์‚ฌ์šฉํ•˜๋Š” ์›น ์„œํ•‘, ํŒŒ์ผ ์ „์†ก, ๋ฉ”์ผ ๋“ฑ์˜ ์„œ๋น„์Šค๋ฅผ ๋ณด์—ฌ์คŒ ๋ฐฉํ™”๋ฒฝ ๋“ฑ HTTP, FTP ๋“ฑ 6 ํ‘œํ˜„ ๊ณ„์ธต ์šด์˜์ฒด์ œ์˜ ํ•œ ๋ถ€๋ถ„์œผ๋กœ ๋ฐ์ดํ„ฐ ํ‘œํ˜„ ๋ฐฉ์‹๊ณผ ์•”ํ˜ธํ™” ๋ณ€ํ™˜ SSL, TLS, ASCII, JPEG ๋“ฑ 5 ์„ธ์…˜ ๊ณ„์ธต End to End๊ฐ„ ์„ธ์…˜์„ ์ผ์น˜์‹œํ‚ด NetBIOS, SQL ๋“ฑ 4 ์ „์†ก ๊ณ„์ธต ์ „์†ก ๋ฐฉ์‹์ด ๊ฒฐ์ •๋˜๋ฉฐ ๋ฐ์ดํ„ฐ๋ฅผ ๋ถ„ํ• ํ•˜๊ณ  ํ•ฉ์น˜๋ฉฐ ์—๋Ÿฌ ๋ณต๊ตฌ ์˜ค๋ฅ˜์™€ ํ๋ฆ„์„ ์ œ์–ด L4 ์Šค์œ„์น˜ ๋“ฑ TCP, UDP ๋“ฑ 3 ๋„คํŠธ์›Œํฌ ๊ณ„์ธต Network to Network๊ฐ„ IP ์ฃผ์†Œ๋ฅผ ์ด์šฉํ•˜์—ฌ ๋ฐ์ดํ„ฐ๋ฅผ ์ „์†ก ๋ชฉ์ ์ง€๊นŒ์ง€์˜ ๊ฒฝ๋กœ๋ฅผ ๊ฒฐ์ • ๋ผ์šฐํ„ฐ, L3 ์Šค..

    AWS CLI

    1. AWS CLI - ๋กœ์ปฌ ํ„ฐ๋ฏธ๋„์„ ํ†ตํ•ด AWS ์„œ๋น„์Šค์— ์ ‘๊ทผํ•  ์ˆ˜ ์žˆ๋Š” ์˜คํ”ˆ์†Œ์Šค AWS Command Line Interface์ด๋ž€ ๋ฌด์—‡์ธ๊ฐ€์š”? - AWS Command Line Interface ์ด ํŽ˜์ด์ง€์— ์ž‘์—…์ด ํ•„์š”ํ•˜๋‹ค๋Š” ์ ์„ ์•Œ๋ ค ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ์‹ค๋ง์‹œ์ผœ ๋“œ๋ ค ์ฃ„์†กํ•ฉ๋‹ˆ๋‹ค. ์ž ๊น ์‹œ๊ฐ„์„ ๋‚ด์–ด ์„ค๋ช…์„œ๋ฅผ ํ–ฅ์ƒ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•ด ๋ง์”€ํ•ด ์ฃผ์‹ญ์‹œ์˜ค. docs.aws.amazon.com 2. ์‚ฌ์šฉ๋ฒ• - AWS CLI ์„ค์น˜ AWS CLI ์„ค์น˜, ์—…๋ฐ์ดํŠธ ๋ฐ ์ œ๊ฑฐ - AWS Command Line Interface ์ด ํŽ˜์ด์ง€์— ์ž‘์—…์ด ํ•„์š”ํ•˜๋‹ค๋Š” ์ ์„ ์•Œ๋ ค ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค. ์‹ค๋ง์‹œ์ผœ ๋“œ๋ ค ์ฃ„์†กํ•ฉ๋‹ˆ๋‹ค. ์ž ๊น ์‹œ๊ฐ„์„ ๋‚ด์–ด ์„ค๋ช…์„œ๋ฅผ ํ–ฅ์ƒ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•ด ๋ง์”€ํ•ด ์ฃผ์‹ญ์‹œ์˜ค. docs.aws.amaz..

    Terraform ์‚ฌ์šฉ๋ฒ•

    1. terraform provider ์ƒ์„ฑ - ๋””๋ ‰ํ† ๋ฆฌ ์ƒ์„ฑ - provider.tf, s3.tf ํŒŒ์ผ ์ƒ์„ฑ - provider.tf์— ์•„๋ž˜ ๊ตฌ๋ฌธ ์ถ”๊ฐ€(IAM ์ธ์ฆ) provider "aws" { access_key = "" secret_key = "" region = "ap-northeast-2" } - s3.tf์— ์•„๋ž˜ ๊ตฌ๋ฌธ ์ถ”๊ฐ€(S3 bucket ์ƒ์„ฑ) resource "aws_s3_bucket" "s3" { bucket = "eunhye-bucket-0225" acl = "private" } 2. terraform init - Terraform ์ดˆ๊ธฐํ™” - ํŒŒ์ผ ๋ฆฌ์ŠคํŠธ 3. terraform plan - ๋ฐฐํฌํ•  Resource ํ™•์ธ(์ถ”๊ฐ€ํ•  Resoucre๋Š” +๋กœ ํ‘œ๊ธฐ) 4. terraform ap..

    AWS CDK ์‚ฌ์šฉ๋ฒ•

    1. cdk init - ๋””๋ ‰ํ† ๋ฆฌ ์ƒ์„ฑ - cdk ์ดˆ๊ธฐํ™”(์‚ฌ์šฉํ•  ์–ธ์–ด ์˜ต์…˜์œผ๋กœ ์ง€์ •) > cdk init app --language=python Applying project template app for python # Welcome to your CDK Python project! This is a blank project for Python development with CDK. The `cdk.json` file tells the CDK Toolkit how to execute your app. This project is set up like a standard Python project. The initialization process also creates a virtualenv within..

    Infrastructure as Code(IaC)

    1. Infrastructure as Code - ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์–ธ์–ด๋ฅผ ์ด์šฉํ•˜์—ฌ ์ธํ”„๋ผ๋ฅผ ๊ตฌ์ถ•/๊ด€๋ฆฌ/ํ”„๋กœ๋น„์ €๋‹ - ์ธํ”„๋ผ ์ƒ์„ฑ/์‚ญ์ œ/์žฌ์‚ฌ์šฉ์ด ๊ฐ„ํŽธ - ๋ฐ˜๋ณต๋˜๋Š” ์ธํ”„๋ผ ์—…๋ฌด๋ฅผ ์ž๋™ํ™”ํ•˜์—ฌ ์‹œ๊ฐ„๊ณผ ํœด๋จผ ์—๋Ÿฌ๋ฅผ ๋‹จ์ถ• - DevOps์˜ ์ค‘์š”ํ•œ ๊ฐœ๋… - ๋Œ€ํ‘œ๋กœ Terraform, AWS CDK ํˆด ์กด์žฌ 2. Terraform - ํ•˜์‹œ์ฝ”ํ”„(hashicorp) ์˜คํ”ˆ์†Œ์Šค๋กœ ๊ฐœ๋ฐœ ์ค‘์ธ Iac ํˆด - ํด๋ผ์šฐ๋“œ ํ”Œ๋žจํผ์— ์ข…์†๋˜์ง€ ์•Š์•„ ๋‹ค์–‘ํ•œ ํด๋ผ์šฐ๋“œ ํ”Œ๋žซํผ์„ ๋™์‹œ์— ์ž์œ ๋กญ๊ฒŒ ์‚ฌ์šฉ ๊ฐ€๋Šฅ - ํ˜„์žฌ๋„ ๊ฐœ๋ฐœ ์ค‘์ด๋ฉฐ ๋ฒ„์ „์— ๋”ฐ๋ผ ๋ฌธ๋ฒ•์ด ๋‹ค๋ฅผ ์ˆ˜ ์žˆ์Œ(๋ฒ„์ „ ๊ด€๋ฆฌ ํ•„์š”) Terraform by HashiCorp Terraform is an open-source infrastructure as code software tool that ena..

    NFV

    1. NFV - Network Function Virtualization - ๋„คํŠธ์›Œํฌ ๊ฐ€์ƒํ™”(Network Virtualization) - ํ•˜๋“œ์›จ์–ด ํ•œ๊ฐœ์— ํ•œ๊ฐœ์˜ ๋„คํŠธ์›Œํฌ ๊ธฐ๋Šฅ(๋ผ์šฐํ„ฐ, ๋ฐฉํ™”๋ฒฝ, L4 ๋“ฑ)์ด ์˜ฌ๋ผ๊ฐ„๊ฒŒ ์•„๋‹Œ ๋ฒ”์šฉ ์„œ๋ฒ„ ํ•œ๊ฐœ์— ์—ฌ๋Ÿฌ๊ฐ€์ง€ ๋„คํŠธ์›Œํฌ ๊ธฐ๋Šฅ์ด ์˜ฌ๋ผ๊ฐ€๋Š” ๊ธฐ๋Šฅ 2. SDN๊ณผ NFV ๋น„๊ต SDN - ๊ธ€๋กœ๋ฒŒ ๋„คํŠธ์›Œํฌ์—์„œ ๋„คํŠธ์›Œํฌ ์žฅ๋น„์˜ ์ œ์–ด๋ถ€์™€ ์ „์†ก๋ถ€๋ฅผ ๋ถ„๋ฆฌํ•˜์—ฌ ๋„คํŠธ์›Œํฌ ์žฅ๋น„๋Š” ์ „์†ก๋ถ€์˜ ๊ธฐ๋Šฅ๋งŒ ํ•˜๋ฉฐ ์‚ฌ์šฉ์ž๊ฐ€ ์ œ์–ด๋ถ€๋ฅผ ์ œ์–ด - ๊ฐ ์žฅ๋น„๋“ค์€ ์ œ์–ด๋ถ€์—์„œ ๋‚ด๋ ค์ง€๋Š” Flow table์„ ์ฐธ์กฐํ•˜์—ฌ ํฌ์›Œ๋”ฉ NFV - ๋ฒ”์šฉ ์„œ๋ฒ„์— ์—ฌ๋Ÿฌ๊ฐ€์ง€ ๋„คํŠธ์›Œํฌ ๊ธฐ๋Šฅ(๋ผ์šฐํ„ฐ, ๋ฐฉํ™”๋ฒฝ, L4, DHCP ๋“ฑ)์„ ์„ค์น˜ํ•˜์—ฌ ์‚ฌ์šฉ SDN๊ณผ NFV๋Š” ๋…๋ฆฝ์ ์ธ ๊ฐœ๋…์ด๋ฉฐ ๊ฐ„๋‹จํ•˜๊ฒŒ SDN์€ ๊ธ€๋กœ๋ฒŒํ•œ ๋„คํŠธ์›Œํฌ์—์„œ ํ•˜๋“œ์›จ์–ด ๊ธฐ๋ฐ˜์œผ๋กœ ์ œ์–ด..