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HTTP Response Header | HTTP Headers | Mar 21, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
### HTTP Response Headers
|Title|
|:-:|
|[HTTP X-Frame-Options Header](https://texonom.com/http-x-frame-options-header-d8affb7e4900415e8ddf374cac8ec7b0)|
|[HTTP X-XSS-Protection Header](https://texonom.com/http-x-xss-protection-header-acea655f80ab4ca4a5297be19f4a9a45)|
|[HTTP x-cache-expired-at Header](https://texonom.com/http-x-cache-expired-at-header-1993905431b0425dbeb99ca477286334)|
|[HTTP x-cache-status Header](https://texonom.com/http-x-cache-status-header-697a8cd8fe094615a3608ee313c692e4)|
|[HTTP Set-Cookie Header](https://texonom.com/http-set-cookie-header-ac388b956c3e4a19bede0b67326e8a04)|
|[HTTP Expires Header](https://texonom.com/http-expires-header-5115ec7a858d4a80aff3cf27082ea3b7)|
|[HTTP Age Header](https://texonom.com/http-age-header-705808d7eb364f5ebb5314401195fbfc)|
|[HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)|
|[HTTP Access-Control-Allow-Origin Header](https://texonom.com/http-access-control-allow-origin-header-56bdcb49668a4bf2abef39eeefc4e18d)|
|[HTTP Referrer-Policy Header](https://texonom.com/http-referrer-policy-header-902e2bb7197140ac9c9cc1d03e3d48cd)|
|[HTTP Feature-Policy Header](https://texonom.com/http-feature-policy-header-20c423a8ce264f15ada8dbe42c5ae5e1)|
|[HTTP Strict-Transport-Security Header](https://texonom.com/http-strict-transport-security-header-50508d9ad2eb419f97951b0b6fc5c7d0)|
|[HTTP Vary Header](https://texonom.com/http-vary-header-09a8d825b3c94aa29d9dcb93c3a33bd1)|
|[Content-Security-Policy](https://texonom.com/content-security-policy-ba88569e98e847b4b26b411824d81e22)|
| 6885667e81c74cebaa57b553c63ec04d |
|
HTTP Content-Encoding Header | HTTP Entity Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
์๋ต์ ์์ถํ ๋ ์ฌ์ฉ๋ ์๊ณ ๋ฆฌ์ฆ
gzip๊ณผ Brotli๊ฐ ํํ ์ฐ์ด๋ ํธ
- gzip
- compress
- defalte
- br
- zstd
> [Content-Encoding - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Encoding)
| 401230cf5b2e49699412cc1095127ebe |
|
HTTP Content-Length Header | HTTP Entity Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
๋ฐ์ดํธ ๋จ์๋ฅผ ๊ฐ์ง๋ ๊ฐ์ฒด ๋ณธ๋ฌธ์ ํฌ๊ธฐ
์ด ํค๋๊ฐ ์กด์ฌํ๋ ์ด์ ๋ HTTP/1.1๋ถํฐ ํ ์ฐ๊ฒฐ์ ์ฌ์ฌ์ฉํ๊ธฐ ๋๋ฌธ
์๋ต์ด ๋๋ ๊ฑด์ง ์๋๋ฉด ์์ง ๋ณด๋ผ ๋ฐ์ดํฐ๊ฐ ๋จ์๋๋ฐ ์ ์จ๊ฑด์ง๋ฅผ ์ ํํ ํ๋จํ๊ธฐ ์ด๋ ค์ฐ๋
Content-Length๋ฅผ ํตํด ๋ฐ์ดํฐ์ ๊ธธ์ด๋ฅผ ํ์ธํ๊ณ , ๋ชจ๋ ๋ฐ์ดํฐ๊ฐ ๋์ฐฉํ์ผ๋ฉด ์ฐ๊ฒฐ์ ์ฌ์ฌ์ฉํ ์ค๋น๊ฐ ๋์๋ค๊ณ ํ๋จ
> [Content-Length - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Length)
> [๋ธ๋ผ์ฐ์ ์ google.com์ ์น๋ฉด ๋ฌด์จ ์ผ์ด ์ผ์ด๋ ๊น? (์๋, ์ง์ง๋ก) - ๋คํธ์ํฌํธ](https://velog.io/@rtyu1120/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80%EC%97%90-google.com%EC%9D%84-%EC%B9%98%EB%A9%B4-%EB%AC%B4%EC%8A%A8-%EC%9D%BC%EC%9D%B4-%EC%9D%BC%EC%96%B4%EB%82%A0%EA%B9%8C-%EC%95%84%EB%8B%88-%EC%A7%84%EC%A7%9C%EB%A1%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%ED%8E%B8)
| f39a2f674f354db5897534cc47a71e02 |
|
HTTP Content-Type Header | HTTP Entity Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
MIME ํ์
| 3faa9d13921f4acabad12a783adf0778 |
|
HTTP X-Content-Type-Options Header | HTTP Entity Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
### used to protect against MIME sniffing vulnerabilities
nosniff
| b36b7ad6add44a74b261072191ba15e4 |
|
Access-Control-Request-Private-Network | HTTP General Headers | Mar 10, 2022 | Alan Jo | Alan Jo | Sep 13, 2023 | [CSRF](https://texonom.com/csrf-367d8a0912f44c3abdac89060eef0a01) [Preflight](https://texonom.com/preflight-60a799576be847dbb0bb7356847d9c0c) |
PNA์ ๋ํ์ฌ preflight์ ์ฉ
preflight์๋ ์ด ํค๋ true ์ ์ฉ๋์ด์ผ ํ๊ณ
์๋ต์๋ ์์ด์ผ ํ๋ค
์ฌ์ค๋ง์ ํ์ ๋ฆฌ์์ค์ ๋ํ ์์ฒญ์ ๋ณด๋ด๊ธฐ ์ ์ ์ฌ์ ์์ฒญ์ ์ ์ก
์ฌ์ค ๋คํธ์ํฌ ๋ฆฌ์์ค ์์ฒญ์ ๋ณด๋ด๊ธฐ ์ preflight ์์ฒญ์ ์ ์ก
Chrome 101์ preflight ์์ฒญ์ด ๋ฐ๋์ ์ฑ๊ณตํด์ผ ํ๋ฉฐ, ์คํจํ ๊ฒฝ์ฐ ์ฌ์ค ๋คํธ์ํฌ ์์ฒญ์ด ์คํจ
cors ์๊ด์์ด ๋ชจ๋
> [Private Network Access: introducing preflights - Chrome Developers](https://developer.chrome.com/blog/private-network-access-preflight/)
| 596ddd505e984ab4af9aced4aa5d0f52 |
HTTP Cache-Control | HTTP General Headers | Jun 3, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | [HTTP Conditional Request](https://texonom.com/http-conditional-request-7b1137923b8d436ca7922edc99679234) [HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)[HTTP Cache-Control Response](https://texonom.com/http-cache-control-response-9954593bf2c94b6aaa8f7d6ec81fca82) |
CDN Invalidation์ ํฌํจํ ์๋ฒ์ ์ด๋ค ์์
์ด ์์ด๋ ๋ธ๋ผ์ฐ์ ์ ์ ํจํ ์บ์๋ฅผ ์ง์ฐ๊ธฐ ์ด๋ ต๋ค
Cache-Control max-age ๊ฐ ๋์ Expires ํค๋๋ก ์บ์ ๋ง๋ฃ ์๊ฐ์ ์ ํํ ์ง์ ํ ์๋ ์์
์บ์์ ์ ํจ ๊ธฐ๊ฐ์ด ์ง๋๋ฉด ๋ธ๋ผ์ฐ์ ๋ ์๋ฒ์ ์กฐ๊ฑด๋ถ ์์ฒญ(Conditional request)์ ํตํด ์บ์๊ฐ ์ ํจํ์ง ์ฌ๊ฒ์ฆ(Revalidation)
- ์บ์๊ฐ ์ ํจํ๋ค๋ฉด, ์๋ฒ๋ [304 Not Modified]
- ์บ์๊ฐ ์ ํจํ์ง ์์ผ๋ฉด, ์๋ฒ๋ [200 OK] ๋๋ ์ ํฉํ ์ํ ์ฝ๋๋ฅผ ๋ณธ๋ฌธ๊ณผ ํจ๊ป
์ฌ๊ฒ์ฆ์ ์์ํค๋ ค๋ฉด max-age=0 ๋ง๊ณ (์ผ๋ถ ๋ชจ๋ฐ์ผ ๋ธ๋ผ์ฐ์ ์ ๊ฒฝ์ฐ ์น ๋ธ๋ผ์ฐ์ ๋ฅผ ๊ป๋ค ์ผ๊ธฐ ์ ๊น์ง ๋ฆฌ์์ค๊ฐ ๋ง๋ฃ๋์ง ์๋๋ก ํ๋ ๊ฒฝ์ฐ๋) no-store
CDN๊ณผ ๊ฐ์ ์ค๊ฐ ์๋ฒ๊ฐ ํน์ ๋ฆฌ์์ค๋ฅผ ์บ์ํ ์ ์๋์ง ์ฌ๋ถ๋ฅผ ์ง์ ํ๊ธฐ ์ํด Cache-Control ํค๋ ๊ฐ์ผ๋ก public ๋๋ private
### HTTP Cache-Control Directives
|Title|
|:-:|
|[HTTP Cache-Control Request](https://texonom.com/http-cache-control-request-67d6dc16b03b46378404361b5bbce23a)|
|[HTTP Cache-Control Response](https://texonom.com/http-cache-control-response-9954593bf2c94b6aaa8f7d6ec81fca82)|
|[Cache-Control Extension ](https://texonom.com/cache-control-extension-2aa7d6cd67484a84951f9ac6cce67a09)|
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
> [Cache-Control - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Cache-Control)
> [Cache headers in Express js app](https://regbrain.com/article/cache-headers-express-js)
[https://www.notion.so/seongland/HTTP-Cache-Control-Response-9954593bf2c94b6aaa8f7d6ec81fca82](https://www.notion.so/seongland/HTTP-Cache-Control-Response-9954593bf2c94b6aaa8f7d6ec81fca82) | 3e82255f69d443588f4e3fa522ee2366 |
HTTP Connection Header | HTTP General Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
```typeConnection: keep-aliveConnection: close```
> [Connection - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Connection)
| 4966feb63d814be69f6d6c53667bc102 |
|
Cache-Control Extension | HTTP Cache-Control Directives | Jun 3, 2021 | Alan Jo | Alan Jo | Jun 8, 2021 |
[Cache-Control stale-while-revalidate](https://texonom.com/cache-control-stale-while-revalidate-daee41434c044b1b92cbaf6676474f47)
```typeCache-Control: immutableCache-Control: stale-while-revalidate=<seconds>Cache-Control: stale-if-error=<seconds>```
| 2aa7d6cd67484a84951f9ac6cce67a09 |
|
HTTP Cache-Control Request | HTTP Cache-Control Directives | Jun 8, 2021 | Alan Jo | Alan Jo | Jun 8, 2021 |
### Directives
```typeCache-Control: max-age=<seconds>Cache-Control: max-stale[=<seconds>]Cache-Control: min-fresh=<seconds>Cache-control: no-cacheCache-control: no-storeCache-control: no-transformCache-control: only-if-cached```
### no-cache
no-cache ๊ฐ์ ๋๋ถ๋ถ์ ๋ธ๋ผ์ฐ์ ์์ max-age=0 ๊ณผ ๋์ผํ ๋ป
์ฆ, ์บ์๋ ์ ์ฅํ์ง๋ง ์ฌ์ฉํ๋ ค๊ณ ํ ๋๋ง๋ค ์๋ฒ์ ์ฌ๊ฒ์ฆ ์์ฒญ์ ๋ณด๋ด์ผ
### no-store
์บ์๋ฅผ ์ ๋๋ก ํด์๋ ์ ๋๋ ๋ฆฌ์์ค์ผ ๋ ์ฌ์ฉ
์บ์๋ฅผ ๋ง๋ค์ด์ ์ ์ฅ์กฐ์ฐจ ํ์ง ๋ง๋ผ๋ ๊ฐ์ฅ ๊ฐ๋ ฅํ Cache-Control
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
| 67d6dc16b03b46378404361b5bbce23a |
|
HTTP Cache-Control Response | HTTP Cache-Control Directives | Jun 8, 2021 | Alan Jo | Alan Jo | Mar 13, 2023 | [HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28) |
## HTTP ์๋ต์ ํฌํจ๋ย **Cache-Control ํค๋**์ ๋ฐ๋ผ ๋ฐ์ ๋ฆฌ์์ค์ ์๋ช
์ฃผ๊ธฐ๊ฐ ๊ฒฐ์
CDN๊ณผ ๊ฐ์ ์ค๊ฐ ์๋ฒ๋ฅผ ์ฌ์ฉํ ๋, ์บ์๋ ์ฌ๋ฌ ๊ณณ์ ์๊ธธ ์๋ ๊ทธ๋ฌ๋ ํ๋ฒ ์ค์ ์กฐ์ฌํด์ผ
### Directives
[CDN Invalidation](https://texonom.com/cdn-invalidation-bc13a272b59a4307a9f65090a27f1948)
[HTTP Conditional Request](https://texonom.com/http-conditional-request-02c2811fbe764cd7986db173fd970e36)
[Cache-Control max-age](https://texonom.com/cache-control-max-age-9911e838b95a4629921bf83acc634a39)
[Cache-Control s-maxage](https://texonom.com/cache-control-s-maxage-316b80ab8f1d48d5b45dfe61c537f740)
[Cache-Control no-cache](https://texonom.com/cache-control-no-cache-770e500ec21443ca96a03a7187a0bd4b)
[Cache-Control no-store](https://texonom.com/cache-control-no-store-1c2dbd4f9b0a4114802d050f95d76807)
[Cache-control public private](https://texonom.com/cache-control-public-private-e1a44c42910e4016b1bb4997691e58cc)
```typeCache-control: must-revalidateCache-control: no-transformCache-control: proxy-revalidate```
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
| 9954593bf2c94b6aaa8f7d6ec81fca82 |
Cache-Control stale-while-revalidate | Cache-Control Extension | null | null | null | null | null |
[RFC 5861](https://texonom.com/rfc-5861-9a3ee7f29cc8415685b30b87e0fdfcd7)
```typeCache-Control: stale-while-revalidate=59```

> [Keeping things fresh with stale-while-revalidate](https://web.dev/stale-while-revalidate/)
| daee41434c044b1b92cbaf6676474f47 |
RFC 5861 | Cache-Control stale-while-revalidate | null | null | null | null | null |
covering the initial stale-while-revalidate specification
> [rfc5861](https://datatracker.ietf.org/doc/html/rfc5861)
| 9a3ee7f29cc8415685b30b87e0fdfcd7 |
Cache-Control max-age | HTTP Cache-Control Response | null | null | null | null | null |
CDN Invalidation์ ํฌํจํ ์๋ฒ์ ์ด๋ค ์์
์ด ์์ด๋ ๋ธ๋ผ์ฐ์ ์ ์ ํจํ ์บ์๋ฅผ ์ง์ธ ์ ์๋ค
์ ์คํ๊ฒ ์ค์ ํด์ผ
```typeCache-Control: max-age=<seconds>```
**max-age=0 ์ฃผ์๋ณด**ย ์ ์๋๋ก๋ผ๋ฉด max-age=0 ๊ฐ์ด Cache-Control ํค๋๋ก ์ค์ ๋์์ ๋, ๋งค๋ฒ ๋ฆฌ์์ค๋ฅผ ์์ฒญํ ๋๋ง๋ค ์๋ฒ์ ์ฌ๊ฒ์ฆ ์์ฒญ์ ๋ณด๋ด์ผ
> Cache-Control max-age ๊ฐ ๋์ Expires ํค๋๋ก ์บ์ ๋ง๋ฃ ์๊ฐ์ ์ ํํ ์ง์ ํ ์๋
| 9911e838b95a4629921bf83acc634a39 |
Cache-Control no-cache | HTTP Cache-Control Response | null | null | null | null | null |
๋๋ถ๋ถ์ ๋ธ๋ผ์ฐ์ ์์ max-age=0 ๊ณผ ๋์ผํ ๋ป
์บ์๋ ์ ์ฅํ์ง๋ง ์ฌ์ฉํ๋ ค๊ณ ํ ๋๋ง๋ค ์๋ฒ์ ์ฌ๊ฒ์ฆ ์์ฒญ์ ๋ณด๋ด์ผ
```typeCache-control: no-cache```
| 770e500ec21443ca96a03a7187a0bd4b |
Cache-Control no-store | HTTP Cache-Control Response | null | null | null | null | null |
์บ์๋ฅผ ์ ๋๋ก ํด์๋ ์ ๋๋ ๋ฆฌ์์ค์ผ ๋
์บ์๋ฅผ ๋ง๋ค์ด์ ์ ์ฅ์กฐ์ฐจ ํ์ง ๋ง๋ผ๋
```typeCache-control: no-store```
| 1c2dbd4f9b0a4114802d050f95d76807 |
Cache-control public private | HTTP Cache-Control Response | null | null | null | null | null |
public์ ๋ชจ๋ ์ฌ๋๊ณผ ์ค๊ฐ ์๋ฒ๊ฐ ์บ์๋ฅผ ์ ์ฅํ ์ ์์์ ๋ํ๋ด๊ณ ,ย private์ ๊ฐ์ฅ ๋์ ์ฌ์ฉ์ ๋ธ๋ผ์ฐ์ ๋ง ์บ์๋ฅผ ์ ์ฅํ ์ ์์
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
| e1a44c42910e4016b1bb4997691e58cc |
Cache-Control s-maxage | HTTP Cache-Control Response | null | null | null | null | null |
์ค๊ฐ ์๋ฒ์์๋ง ์ ์ฉ๋๋ max-age ๊ฐ์ ์ค์
s-maxage=31536000, max-age=0 ๊ณผ ๊ฐ์ด ์ค์ ํ๋ฉด CDN์์๋ 1๋
๋์ ์บ์๋์ง๋ง ๋ธ๋ผ์ฐ์ ์์๋ ๋งค๋ฒ ์ฌ๊ฒ์ฆ ์์ฒญ์ ๋ณด๋ด๋๋ก ์ค์
```typeCache-control: s-maxage=<seconds>```
CDN์์๋ 1๋
๋์ ์บ์๋์ง๋ง ๋ธ๋ผ์ฐ์ ์์๋ ๋งค๋ฒ ์ฌ๊ฒ์ฆ ์์ฒญ์ ๋ณด๋ด๋๋ก
```types-maxage=31536000, max-age=0, public```
| 316b80ab8f1d48d5b45dfe61c537f740 |
**CDN Invalidation** | HTTP Cache-Control Response | null | null | null | null | null |
### CDN์ ์ ์ฅ๋์ด ์๋ ์บ์๋ฅผ ์์ ๊ธฐ ์ํด์ ์ํํ๋ ๊ฒ
๋ธ๋ผ์ฐ์ ์บ์์๋ ์๊ด์์
CDN์ด ์ฌ๋ฌ ๊ฐ ์๋ ๊ฒฝ์ฐ๋ ๋ฐ์ํ๋๋ฐ, ์ด ๊ฒฝ์ฐ ์ ์ฒด ์บ์๋ฅผ ๋ ๋ฆฌ๋ ค๋ฉด ์ค๊ฐ ์๋ฒ ๊ฐ๊ฐ์ ๋ํด์ ์บ์๋ฅผ ์ญ์ ํด์ผ
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
| bc13a272b59a4307a9f65090a27f1948 |
HTTP Conditional Request | HTTP Cache-Control Response | null | null | null | null | null |
## Cache Revalidation
์ฌ๊ฒ์ฆ ๊ฒฐ๊ณผ ๋ธ๋ผ์ฐ์ ๊ฐ ๊ฐ์ง๊ณ ์๋ ์บ์๊ฐ ์ ํจํ๋ค๋ฉด, ์๋ฒ๋ย **[304 Not Modified]**ย Status Code
์ฌ๊ฒ์ฆ ์์ฒญ ํค๋
1. **If-None-Match**: ์บ์๋ ๋ฆฌ์์ค์ย `ETag`ย ๊ฐ๊ณผ ํ์ฌ ์๋ฒ ๋ฆฌ์์ค์ย `ETag`ย ๊ฐ์ด ๊ฐ์์ง ํ์ธํฉ๋๋ค.
2. **If-Modified-Since**: ์บ์๋ ๋ฆฌ์์ค์ย `Last-Modified`ย ๊ฐ ์ดํ์ ์๋ฒ ๋ฆฌ์์ค๊ฐ ์์ ๋์๋์ง ํ์ธํฉ๋๋ค.
[HTTP ETag Header](https://texonom.com/http-etag-header-e27a505da3024ae0a267d761779dfb28)
> [์น ์๋น์ค ์บ์ ๋๋ํ๊ฒ ๋ค๋ฃจ๊ธฐ](https://toss.tech/article/smart-web-service-cache)
| 02c2811fbe764cd7986db173fd970e36 |
HTTP Accept Header | HTTP Request Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
Accept ์์ฒญ HTTP ํค๋๋ MIME ํ์
์ผ๋ก ํํ๋๋, ํด๋ผ์ด์ธํธ๊ฐ ์ดํด ๊ฐ๋ฅํ ์ปจํ
์ธ ํ์
์ด ๋ฌด์์ธ์ง๋ฅผ ์๋ ค์ค
> [Accept - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Accept)
| e84dfc625f4f4cdfb1107c9b3860105a |
|
HTTP Accept-Language | HTTP Request Headers | Mar 13, 2023 | Alan Jo | Alan Jo | Sep 13, 2023 |
ํนํ ์กฐ์ฌ
> [Accept-Language - HTTP | MDN](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Language)
| b7c01536b83c4642a15b7e5d12defe1a |
|
HTTP Authorization Header | HTTP Request Headers | Mar 24, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 193b5de3c4c5422b9936f3e51469da60 |
||
HTTP Client Hints Header | HTTP Request Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
๊ตฌ๊ธ์์ ๋ฐ๊ณ ์๋
์ปจํ
์ธ ํ์ ํค๋์ ์ผ๋ถ๋ก ํ์ฉ
| a2ed91c778484181af91de207c876abf |
|
HTTP Cookie Header | HTTP Request Headers | Aug 17, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | [HTTP Cookie](https://texonom.com/http-cookie-5a2a27c54b6a4ec5830512b25a2d8300) [HTTP Set-Cookie Header](https://texonom.com/http-set-cookie-header-ac388b956c3e4a19bede0b67326e8a04) |
์ ์ฅ๋ ์ฟ ํค๋ ๋ค์์ ๋ค์ ๊ทธ ๋ธ๋ผ์ฐ์ ์์ ์๋ฒ๋ก ์์ฒญ์ ๋ณด๋ผ๋, Cookie๋ผ๋ ํค๋์ ๊ฐ์ด ์ ์ก
> [Untitled](https://seob.dev/posts/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80-%EC%BF%A0%ED%82%A4%EC%99%80-SameSite-%EC%86%8D%EC%84%B1/)
| c93a0869e98e442dbc7e3dffa9ea2987 |
HTTP Host Header | HTTP Request Headers | Sep 5, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 151e3887e19b4c9e8fc2f5f87886433c |
||
HTTP If-Modified-Since | null | null | null | null | null | null | 1f2eb357361145b68f1efc5fb8484c6c |
|
HTTP If-None-Match | HTTP Request Headers | Jun 8, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 4feb114394fb4483bdbd44dda67a6d25 |
||
HTTP Origin Header | HTTP Request Headers | Mar 24, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 4a003b635a8d4eeaaffb86a491bd84ed |
||
HTTP Referer Header | HTTP Request Headers | Aug 17, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
์์ฒญ์ ๋ณด๋ด๋ ํ์ด์ง ๋๋ฉ์ธ
| 2e4dc47f6eda4a66bc1073d860792cd5 |
|
HTTP Upgrade-Insecure-Requests Header | HTTP Request Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
ํด๋ผ์ด์ธํธ์์ TLS ์ฐ๊ฒฐ์ ํตํ ์ํธํ๋ ์ฐ๊ฒฐ์ ์ง์ํ๋ค๋ ์๋ฏธ
CSP ๊ท์น ์ค ํ๋
> [Upgrade-Insecure-Requests - HTTP | MDN](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests)
| 59ef6bdf60fd461592fc3edb2a409342 |
|
HTTP User-Agent Header | HTTP Request Headers | May 11, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
์ปจํ
์ธ ํ์ ํค๋์ ์ผ๋ถ
[User Agent String Reduction](https://texonom.com/user-agent-string-reduction-4b8c8e579cf348c5901716f036c95945)
> [๋ธ๋ผ์ฐ์ ์ ์ฌ์ฉ์ ์์ด์ ํธ๋ ์ ์ด๋ ๊ฒ ๋ณต์กํ๊ฒ ์๊ฒผ์๊น? - ์ฌ๊ทธ์ง๊ทธ์ ๊ฐ๋ฐ ๋ธ๋ก๊ทธ](https://wormwlrm.github.io/2021/10/11/Why-User-Agent-string-is-so-complex.html)
| 586f2d9592f9490886946a3102f03671 |
|
****User Agent String Reduction**** | HTTP User-Agent Header | null | null | null | null | null |
UA(User-Agent) ๋ฌธ์์ด์ด ๊ฐ์ธ์ ๋ณด ์ถ์ ์ผ๋ก ํ์ฉ๋๋ ๊ฒฝ์ฐ ์์ด ๋ณ๊ฒฝ์์
> [User-Agent Reduction](https://www.chromium.org/updates/ua-reduction/)
> [Update on User-Agent Reduction plans](https://groups.google.com/a/chromium.org/g/blink-dev/c/e3pZJu96g6c?pli=1)
> [The Privacy Sandbox](https://www.chromium.org/Home/chromium-privacy/privacy-sandbox/)
> [Intent to Deprecate and Freeze: The User-Agent string](https://groups.google.com/a/chromium.org/g/blink-dev/c/-2JIRNMWJ7s/m/yHe4tQNLCgAJ)
| 4b8c8e579cf348c5901716f036c95945 |
Content-Security-Policy | HTTP Response Headers | Oct 12, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
```typeContent-Security-Policy: default-src 'self' http://example.com; connect-src 'none';Content-Security-Policy: connect-src http://example.com/; script-src http://example.com/```
> [Content-Security-Policy - HTTP | MDN](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Security-Policy)
| ba88569e98e847b4b26b411824d81e22 |
|
HTTP Access-Control-Allow-Origin Header | HTTP Response Headers | Mar 24, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 56bdcb49668a4bf2abef39eeefc4e18d |
||
HTTP Age Header | HTTP Response Headers | Mar 24, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 705808d7eb364f5ebb5314401195fbfc |
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HTTP ETag Header | HTTP Response Headers | Mar 21, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
## Entity Tag
**ํน์ ๋ฒ์ ์ ๊ตฌ์ฑ ์์๋ฅผ ๊ณ ์ ํ๊ฒ ์๋ณํ๋ ๋ฌธ์์ด์ผ๋ก ์ผ์ข
์ ํด์๊ฐ**
๊ฐํ ๊ฒ์ฆ, ์ฝํ ๊ฒ์ฆ์ด ์กด์ฌ
- ์ฝํ ๊ฒ์ฆ์ ํ๊ณ ์ถ์ผ๋ฉด W/๋ฅผ ์์ ๋ถ์ด๊ธฐ
์๋ต ๋ฐ์์ ๋ Etag ๊ฐ์ If-None-Match ํค๋์ ํฌํจ์์ผ ์ ์ก ํ ์ ํจ์ฑ์ ํ๋จ
ETag HTTP ์๋ต ํค๋๋ ํน์ ๋ฒ์ ์ ๋ฆฌ์์ค๋ฅผ ์๋ณํ๋ ์๋ณ์
์น ์๋ฒ๊ฐ ๋ด์ฉ์ ํ์ธํ๊ณ ๋ณํ์ง ์์์ผ๋ฉด, ์น ์๋ฒ๋ก full ์์ฒญ์ ๋ณด๋ด์ง ์๊ธฐ ๋๋ฌธ์, ์บ์ฌ๊ฐ ๋ ํจ์จ์ ์ด๊ฒ ๋๊ณ , ๋์ญํญ๋ ์๋ ์ ์๋ค
ํ๋, ๋ง์ฝ ๋ด์ฉ์ด ๋ณ๊ฒฝ๋์๋ค๋ฉด, "mid-air collisions" ์ด๋ผ๋ ๋ฆฌ์์ค ๊ฐ์ ๋์ ๋ค๋ฐ์ ์์ ๋ฐ ๋ฎ์ด์ฐ๊ธฐ ํ์์ ๋ง๋๋ฐ ์ ์ฉํ๊ฒ ์ฌ์ฉ
[Etag Hash](https://texonom.com/etag-hash-449c540c1e75410292502b4486ac96a9)
1. ๋จผ์ Etag๋ Last-Modified์ ํจ๊ป ์จ๋ค
2. ๋ธ๋ผ์ฐ์ ๊ฐ ๊ตฌ์ฑ ์์์ ์ ํจ์ฑ์ ๊ฒ์ฌํด์ผํ๋ ๊ฒฝ์ฐ If-None-Match๋ If-Modified-Since ํค๋๋ฅผ ์ฌ์ฉํ์ฌ ETag๋ Last-Modified ๊ฐ์ ์๋ ์๋ฒ๋ก ๋ค์ ์ ๋ฌ
3. ์ผ์นํ๋ฉด 304
> [https://black7375.tistory.com/81](https://black7375.tistory.com/81)
> [ETag](https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/ETag)
| e27a505da3024ae0a267d761779dfb28 |
|
HTTP Expires Header | HTTP Response Headers | Mar 24, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | 5115ec7a858d4a80aff3cf27082ea3b7 |
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HTTP Feature-Policy Header | HTTP Response Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
Feature Policy allows web developers to selectively enable, disable, and modify the behavior of certain features and APIs in the browser | 20c423a8ce264f15ada8dbe42c5ae5e1 |
|
HTTP Referrer-Policy Header | HTTP Response Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
HTTP header controls how much referrer information (sent via the Referer header) should be included with requests.
[referrer information](https://texonom.com/referrer-information-4626b115d95c45e9839f249a4f058583)
| 902e2bb7197140ac9c9cc1d03e3d48cd |
|
HTTP Set-Cookie Header | HTTP Response Headers | Aug 17, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | [HTTP Cookie](https://texonom.com/http-cookie-5a2a27c54b6a4ec5830512b25a2d8300) [HTTP Cookie Header](https://texonom.com/http-cookie-header-c93a0869e98e442dbc7e3dffa9ea2987) |
๋ธ๋ผ์ฐ์ ๋ Set-Cookie ์ ์๋ ๋ฐ์ดํฐ๋ฅผ ์ ์ฅ
| ac388b956c3e4a19bede0b67326e8a04 |
HTTP Strict-Transport-Security Header | HTTP Response Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
ํ๋กํ ์ฝ ๋ค์ด ๊ทธ๋ ์ด๋ ๊ณต๊ฒฉ ๋ฐ ์ฟ ํค ํ์ด์ฌํน๊ณผ ๊ฐ์ ์ค๊ฐ์ ๊ณต๊ฒฉ์ผ๋ก๋ถํฐ ์น ์ฌ์ดํธ๋ฅผ ๋ณดํธํ๋ ๋ฐ ๋์์ด๋๋ ์น ๋ณด์ ์ ์ฑ
๋ฉ์ปค๋์ฆ
HTTP Strict-Transport-Security response header (์ข
์ข
HSTS ๋ก ์ฝ์นญ)
HTTP ๋์ HTTPS๋ง์ ์ฌ์ฉํ์ฌ ํต์ ํด์ผํ๋ค๊ณ ์น์ฌ์ดํธ๊ฐ ๋ธ๋ผ์ฐ์ ์ ์๋ฆฌ๋ ๋ณด์ ๊ธฐ๋ฅ
| 50508d9ad2eb419f97951b0b6fc5c7d0 |
|
HTTP Vary Header | HTTP Response Headers | Jun 8, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 | [Web Varnish Cache](https://texonom.com/web-varnish-cache-c1ac9c51942e433a8f67578a218ba9b2) |
์๋ต ๊ฒฐ๊ณผ์ ๋ํด ์์ผ๋ก ๋ค์ด์ค๋ ์์ฒญ์ ์บ์๋ ๋ฐ์ดํฐ๋ฅผ ๋ฐํํ ์ง ์๋๋ฉด ๋ฐฑ์๋ ์๋ฒ๋ก ์ ๋ฌํ ์ง ๊ฒฐ์ ํ๋ ๊ณผ์ ์์ ํ์ฉ
```typeVary: <header-name>, <header-name>, โฆ```
> [Varnish ์บ์ ํํธ ํจ์จ์ ๋์ด๋ ๋ฐฉ๋ฒ :: ์กฐ์์ฐ ๊ฐ๋ฐ ๋ธ๋ก๊ทธ](https://jonnung.dev/system/2020/03/18/increasing-varnish-cache-hit-rate/)
| 09a8d825b3c94aa29d9dcb93c3a33bd1 |
HTTP x-cache-expired-at Header | HTTP Response Headers | Mar 21, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
cache ๋ง๋ฃ์๊ฐ | 1993905431b0425dbeb99ca477286334 |
|
HTTP x-cache-status Header | HTTP Response Headers | Mar 21, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
cache HIT ์ฌ๋ถ | 697a8cd8fe094615a3608ee313c692e4 |
|
HTTP X-Frame-Options Header | HTTP Response Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
ํด๋น ํ์ด์ง๋ฅผ ๋๋ <frame> ๋๋<iframe>, <object> ์์ ๋ ๋๋งํ ์ ์๋์ง ์ฌ๋ถ๋ฅผ ๋ํ๋ด๋๋ฐ ์ฌ์ฉ์์ ๋ ๋๋งํ ์ ์๋์ง ์ฌ๋ถ๋ฅผ ๋ํ๋ด๋๋ฐ ์ฌ์ฉ
์ฌ์ดํธ ๋ด ์ฝํ
์ธ ๋ค์ด ๋ค๋ฅธ ์ฌ์ดํธ์ ํฌํจ๋์ง ์๋๋ก ํ์ฌ clickjacking ๊ณต๊ฒฉ์ ๋ง๊ธฐ ์ํด ์ด ํค๋๋ฅผ ์ฌ์ฉ
์ด ์๋ต์ด ํ๋ ์์ ์ผ๋ถ๋ก ์ฌ์ฉ๋ ์ ์๋์ง๋ฅผ ์ง์ ํ๊ฒ ํด์ฃผ๋ ํค๋
์์ X๊ฐ ๋ถ์ด ์๊ธด ํ์ง๋ง RFC 7034๋ก ํ์ค์ ์ผ๋ถ
| d8affb7e4900415e8ddf374cac8ec7b0 |
|
HTTP X-XSS-Protection Header | HTTP Response Headers | Mar 22, 2021 | Alan Jo | Alan Jo | Sep 13, 2023 |
**X-XSS-Protection**
Reflected XSS ๊ณต๊ฒฉ์ ๊ฐ์งํ์ ๋ ์๋์ผ๋ก ์ฌ์ดํธ์ ๋ก๋๋ฅผ ์ค๋จํด์ฃผ๋ ๋ธ๋ผ์ฐ์ ๊ธฐ๋ฅ
| acea655f80ab4ca4a5297be19f4a9a45 |
|
Etag Hash | HTTP ETag Header | null | null | null | null | null | 449c540c1e75410292502b4486ac96a9 |
|
referrer information | HTTP Referrer-Policy Header | null | null | null | null | null |
HTTP ๋ฆฌํผ๋ฌ๋ ์น ๋ธ๋ผ์ฐ์ ๋ก ์๋ ์์ด๋ ์น์ ์ํํ ๋, ํ์ดํผ๋งํฌ๋ฅผ ํตํด์ ๊ฐ๊ฐ์ ์ฌ์ดํธ๋ก ๋ฐฉ๋ฌธ์ ๋จ๋ ํ์ | 4626b115d95c45e9839f249a4f058583 |
HTTP Early Hints | HTTP Status Code | null | null | null | null | null |
### 103
[HTTP2 Server Push](https://texonom.com/http2-server-push-478fcc57b6634c919462cad5c4b025d3)
> [HTTP์ ์๋ก์ด ์ํ ์ฝ๋: 103 Early Hints](https://tech.ssut.me/http-103-early-hints/)
> [103 Early Hints](https://chromium.googlesource.com/chromium/src/+/master/docs/early-hints.md)
> [Untitled](https://blog.cloudflare.com/early-hints/)
| a845272a5a07409ab6ab922c93dba307 |
http DELETE | HTTP Verbs | Jan 1, 2021 | Alan Jo | Alan Jo | Jun 28, 2021 | 460465b336cf4e409fca185bce33b7a7 |
||
HTTP GET | HTTP Verbs | Jun 28, 2021 | Alan Jo | Alan Jo | Jun 28, 2021 | a44216dc2d4b4ff98aa5d1fb4746a105 |
||
http PATCH | HTTP Verbs | Jul 31, 2022 | Alan Jo | Alan Jo | Jul 31, 2022 |
์ผ๋ถ๋ณ๊ฒฝ
| a98847e32bf44457933ee48024703d8a |
|
http POST | HTTP Verbs | Jan 1, 2021 | Alan Jo | Alan Jo | Jun 28, 2021 | be36bb912a994604b9ff2921ae4c988d |
||
http PUT | HTTP Verbs | Jul 31, 2022 | Alan Jo | Alan Jo | Jul 31, 2022 |
์ผ๋ถ๋ณ๊ฒฝ๋ณด๋จ ๋์ฒด
> [Untitled](https://jaehoney.tistory.com/90)
| 0f5a40d063ea4726bb92faf244de35bc |
|
HTTP Range GET | HTTP GET Usage | Jun 28, 2021 | Alan Jo | Alan Jo | Jun 28, 2021 |
์ ์ ์ด๊ณ ํฐ ํ์ผ์ ๋ฐ์์ฌ ๋ ์ ์ฉํจ

์ฌ์ด์ฆ๊ฐ ํฐ Content์ ๋ํด์ Client Application์์ 1๊ฐ์ Connection์ผ๋ก๋ง ๋ฐ์ดํฐ๋ฅผ ๋ฐ๋ ๊ฒ๋ณด๋ค, ์ฌ๋ฌ๊ฐ์ byte ๋จ์๋ก ๋ถํ ํ์ฌ ๋์์ ๋ค์ด๋ก๋ ๋ฐ์์ Network Bandwidth ํ์ฉ ๋ฒ์ ๋ด์์ ๋น ๋ฅด๊ฒ ๋ค์ด๋ก๋
> [Amazon CloudFront: Range GET Behavior](https://medium.com/ctc-mzc/amazon-cloudfront-range-get-behavior-e419e22f128f)
| 4789b7aa155b4886a7971308737b6f17 |
|
HTTP Hybrid Deployment | HTTP Version Notion | Jun 23, 2021 | null | null | null |

> [Introducing a Technology Preview of NGINX Support for QUIC and HTTP/3 - NGINX](https://www.nginx.com/blog/introducing-technology-preview-nginx-support-for-quic-http-3/)
| 8f1806d040814d32bb734cf5f2575f09 |
|
HTTP/0.9 | HTTP Versions | Jul 25, 2021 | null | null | null |
Sir Timothy John Berners-Lee , also known as TimBL
English computer scientist and the inventor of the WWW
He created the one-line HTTP protocol in 1989
It simply returns a webpage
This protocol was named HTTP/0.9 in 1991
It is a simple one-page specification
It has only one method, GET
no HTTP headers, no status/error codes, no cookies, and no other modern features
HTTP/0.9 is built over TCP
The connection is terminated immediately after the response
> [The HTTP Protocol As Implemented In W3](https://www.w3.org/Protocols/HTTP/AsImplemented.html)
> [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
| 4f95754cb6844bf7bb1a059ee64c0a0a |
|
HTTP/1 | HTTP Versions | May 11, 2021 | null | null | null |
1996๋
์ฒ์ 1.0๋ฒ์ ์ด release
- GET, Head, and POST
- additional terminologies: message, resource, entity, client, user agent, server, origin server, proxy, gateway, tunnel, and cache
> [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
| bd41ff56e5e245a581e47a6b2d61d438 |
|
HTTP/1.1 | HTTP Versions | May 11, 2021 | null | null | null | [RESTful](https://texonom.com/restful-cddc821aa86e42ccab831ecfc22c007d) [HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d) [HTTP Verb](https://texonom.com/http-verb-bf6fcc307e1a42868dac627435e81578) |
## The first standardized version of HTTP
published in early 1997, only a few months after HTTP/1.0
supports seven methods: OPTIONS, GET, HEAD, POST, PUT, DELETE, and TRACE
๊ธฐ๋ณธ์ ์ผ๋ก Connection๋น ํ๋์ ์์ฒญ์ ์ฒ๋ฆฌ ํ๋๋ก ์ค๊ณ
๋์์ ์ก์ด ๋ถ๊ฐ๋ฅํ๊ณ ์์ฒญ๊ณผ ์๋ต์ด ์์ฐจ์
1. DNS ์กฐํ. ํธ์คํธ ์ด๋ฆ์ ๋ํด์ DNS ์กฐํ ํ ์ฐ๊ฒฐํ IP์ฃผ์๋ฅผ ํ๋ณด
2. TCP ์ฐ๊ฒฐ์ ์ํ ํธ๋์์ดํฌ
3. TLS ์ฐ๊ฒฐ์ ์ํ ํธ๋์์ดํฌ
4. HTTP ์์ฒญ ์ ์ก
5. HTTP ์๋ต ์์
## Historic Accidents
- RFC 5789 added PATCH in 2010
- RFC 7231 added CONNECT in 2014
- HTTPS emerged
- Roy Fielding led a group of experts that invented REST
- representation
- content negotiation
- variant
- cachable
- first-hand
- explicit expiration time
- heuristic expiration time
- age
- freshness lifetime
- fresh
- stale
- semantically transparent
- validator
### Enhancement
- Virtual hosting allows multiple domains to be served from a single IP address
- The persistent and pipelined connections allow a web browser to send multiple requests over a single persistent connection
- **The chunked encoding allows a response to be sent before its total length is known. This enables dynamically generated pages**
> [rfc2068](https://datatracker.ietf.org/doc/html/rfc2068)
> [QUIC๊ณผ HTTP/3 - 2. ๊ธฐ์กด์ ์ฑ๋ฅ ๊ฐ์ ๊ธฐ๋ฒ ๋ฐ ํ๊ณ](https://www.saturnsoft.net/network/2019/03/26/quic-http3-2/)
Roy Fielding led a group of experts that invented REST | b35cef6c34ee40b5b3a433d1761c452d |
HTTP/2 | HTTP Versions | Apr 26, 2021 | null | null | null | [Stream Processing](https://texonom.com/stream-processing-1fc4a9c49c144806922512b26c0d8231) |
### speed increase offered by multiplexing for the browser connections
targets more efficient use of network resources
> [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
> [QUIC๊ณผ HTTP/3 - 2. ๊ธฐ์กด์ ์ฑ๋ฅ ๊ฐ์ ๊ธฐ๋ฒ ๋ฐ ํ๊ณ](https://www.saturnsoft.net/network/2019/03/26/quic-http3-2/)
> [HTTP/2 ์๊ฐ | Web Fundamentals | Google Developers](https://developers.google.com/web/fundamentals/performance/http2?hl=ko)
> [HTTP/2 and SPDY indicator](https://chrome.google.com/webstore/detail/http2-and-spdy-indicator/mpbpobfflnpcgagjijhmgnchggcjblin)
| f65b3a2089cf42368339cbec3fd34ec0 |
HTTP/3 | HTTP Versions | Jun 21, 2020 | null | null | null | [Cloudflare](https://texonom.com/cloudflare-878e4d0e330a430f9b2fe653de49c523) |
### published on May 27, 2021
### Explained
> [Introduction](https://http3-explained.haxx.se/)
### HTTP/3 Basic
> [HTTP/3 From A To Z: Core Concepts (Part 1) - Smashing Magazine](https://www.smashingmagazine.com/2021/08/http3-core-concepts-part1/)
> [HTTP/3 is Fast | Request Metrics](https://requestmetrics.com/web-performance/http3-is-fast)
### Korean
> [HTTP3, ์ฌ์ค ์ง์ง๋ก ๋ฐ๋๊ฑด TCP ์๋ค.](https://www.hamadevelop.me/http3/)
> [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
| dc9386ade9324c7ba2fcbf9b4f237591 |
NPN | HTTP/1 Notion | May 11, 2021 | Alan Jo | Alan Jo | May 11, 2021 | f4227596e87f4bd4ba482d0908c8687f |
||
ALPN | HTTP/2 Notion | Apr 26, 2021 | Alan Jo | Alan Jo | May 11, 2021 | [HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d) [TLS](https://texonom.com/tls-2ac2c3475b704170926ee2d5f9a7d285) |
RFC 7301์์ ์ ์๋๋ TLS์ ํ์ฅ
๊ธฐ์กด์ ๊ฐ์ ๋ชฉ์ ์ผ๋ก ์ฐ์๋ [NPN](https://texonom.com/npn-f4227596e87f4bd4ba482d0908c8687f) ์ ๋์ฒดํ๊ธฐ ์ํด ์์ฑ
๋ธ๋ผ์ฐ์ ๊ฐ HTTPS ์ฐ๊ฒฐ์ ๋ง๋ค๊ธฐ ์ํด์๋ ๋จผ์ TLS ์ฐ๊ฒฐ์ด ๋ง๋ค์ด์ ธ์ผ
ALPN์ ์ง์ํ๋ ๋ธ๋ผ์ฐ์ ๋ TLS ์๋ฒ์ ์ฌ์ฉ ๊ฐ๋ฅํ ์๊ณ ๋ฆฌ์ฆ๊ณผ TLS ๋ฒ์ ์ ๋ณด๋ด๋ ClientHello ๊ณผ์ ์์ ์ง์ํ๋ ์ ํ๋ฆฌ์ผ์ด์
ํ๋กํ ์ฝ ๋ชฉ๋ก์ ์ถ๊ฐ
์๋ฒ๋ ์ด TLS ClientHello๋ฅผ ๋ฐ๊ณ , h2๊ฐ ํ๋กํ ์ฝ ๋ชฉ๋ก์ ์์ผ๋ฉฐ ์๋ฒ๊ฐ HTTP/2๋ฅผ ์ง์ํ๋ ๊ฒฝ์ฐ HTTP/2๋ก ํต์
HTTP/2๋ก ์ ํํ๋ ๊ณผ์ ์ด TLS๋ฅผ ๋๋ฐํ๊ธฐ ๋๋ฌธ์, ์ผ๋ฐ์ ์ธ HTTP/1.1์์ HTTP/2๋ก ๋ฐ๊ฟ ์ ์๋ ๊ฒ
๋ช
์ธ ์์ผ๋ก๋ Upgrade ํค๋๋ฅผ ํตํด ์ํธํ๋์ง ์์ HTTP/1.1์ HTTP/2๋ก ์
๊ทธ๋ ์ด๋ํ ์ ์๋๋ก ๊ณ ์๋์ด ์์ง๋ง, ๋ชจ์ง๋ผ ํ์ด์ดํญ์ค์ ๊ตฌ๊ธ ํฌ๋กฌ์ด TLS์์๋ง HTTP/2๋กค ์ง์ํ๋๋ก ๊ฒฐ์ ํ๋ฉด์ ์ฌ์ค์ ์ฌ์ฉ๋์ง ์๋๋ค
์ผ๋ถ ์ค๊ฐ ์์คํ
์ด 80 ํฌํธ์์ HTTP/1.1์ ์์ ํ๊ณ HTTP/2 ํต์ ์ ์์์ํฌ ์ฐ๋ ค๊ฐ ์์๊ธฐ ๋๋ฌธ
> [๋ธ๋ผ์ฐ์ ์ google.com์ ์น๋ฉด ๋ฌด์จ ์ผ์ด ์ผ์ด๋ ๊น? (์๋, ์ง์ง๋ก) - ๋คํธ์ํฌํธ](https://velog.io/@rtyu1120/%EB%B8%8C%EB%9D%BC%EC%9A%B0%EC%A0%80%EC%97%90-google.com%EC%9D%84-%EC%B9%98%EB%A9%B4-%EB%AC%B4%EC%8A%A8-%EC%9D%BC%EC%9D%B4-%EC%9D%BC%EC%96%B4%EB%82%A0%EA%B9%8C-%EC%95%84%EB%8B%88-%EC%A7%84%EC%A7%9C%EB%A1%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%ED%8E%B8)
| 2aff059817a5437482debf5ca4f00a99 |
HPACK | HTTP/2 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 | [QPACK](https://texonom.com/qpack-1f26c953abde4d07a4b0b012c3c4eb21) |
request and response headers are compressed by HPACK
| ca414a54b1c04d7ebaa55f5152cf1f12 |
HTTP/2 Buffer | HTTP/2 Notion | Jun 1, 2021 | Alan Jo | Alan Jo | Jun 1, 2021 |
์ต๊ทผ์ OS TCP ์คํ์ ์์ ๋ฒํผ์ ์๋ ์กฐ์
ํ์ฌ์ BDP (๋์ญํญ-์ง์ฐ์๊ฐ ๊ณฑ)์ ๊ธฐ๋ฐ
> [HTTP/2 ์
๋ก๋ ์๋ ํฅ์๊ธฐ](https://blog.cloudflare.com/ko-kr/delivering-http-2-upload-speed-improvements-ko-kr/)
| 6f9166390b8343bfa54ba8704d3cfafe |
|
http2 Concurrent Request | HTTP/2 Notion | Jun 1, 2021 | Alan Jo | Alan Jo | Aug 17, 2021 | [QUIC](https://texonom.com/quic-d6a41b58fbc4414fb652d9d51878b6b7) |
ํ๋์ TCP ์ปค๋ฅ์
์์๋ ์ฌ๋ฌ ํ์ผ์ ์ ์กํ ์ ์๋๋ก
ํ์ง๋ง, TCP๋ ํ๋์ ์ปค๋ฅ์
์ ํ๋์ ํ์ผ๋ก ์ทจ๊ธํ๊ธฐ์ ํจํท ๋ก์ค๊ฐ ๋ฐ์ํ๋ฉด, ํด๋น ํ์ผ ๋ฟ๋ง ์๋๋ผ TCP ์ปค๋ฅ์
์ ๊ณต์ ํ๋ ๋ค๋ฅธ ํ์ผ๋ค์ ํจํท๋ ์ค๋จ์ด ๋๋ ๋ฌธ์ ๊ฐ ๋ฐ์ํ ์๋
### example
> [https://http2.golang.org/gophertiles?latency=30](https://http2.golang.org/gophertiles?latency=30)
> [HTTP3, ์ฌ์ค ์ง์ง๋ก ๋ฐ๋๊ฑด TCP ์๋ค.](https://www.hamadevelop.me/http3/)
| 8bbdec61e57d4a8bb6377b47ad16c828 |
HTTP2 Header Compression | HTTP/2 Notion | Jun 1, 2021 | Alan Jo | Alan Jo | Jun 1, 2021 |
์ ์ก๋น 500~800๋ฐ์ดํธ์ ์ค๋ฒํค๋
HTTP ์ฟ ํค๋ฅผ ์ฌ์ฉํ ๊ฒฝ์ฐ ์ KB๊ฐ ์ถ๊ฐ๋๊ธฐ๋
์ค๋ฒํค๋๋ฅผ ์ค์ด๊ณ ์ฑ๋ฅ์ ๊ฐ์ ํ๊ธฐ ์ํด HTTP/2์์๋ HPACK ์์ถ ํ์์ ์ฌ์ฉํ์ฌ ์์ฒญ ๋ฐ ์๋ต ํค๋ ๋ฉํ๋ฐ์ดํฐ๋ฅผ ์์ถ
๋จ์ํ์ง๋ง ๊ฐ๋ ฅํ ๋ ๊ฐ์ง ๊ธฐ์ ์ ์ฌ์ฉ
1. ์ ์ก๋๋ ํค๋ ํ๋๋ฅผ ์ ์ Huffman ์ฝ๋๋ก ์ธ์ฝ๋ฉํ๋๋ก ํ์ฉ
2. ์ด์ ์ ํ์๋ ํค๋ ํ๋์ ์์ธ ๋ชฉ๋ก์ ํด๋ผ์ด์ธํธ์ ์๋ฒ๊ฐ ์ ์งํ๊ณ ์
๋ฐ์ดํธํ๋๋ก ์๊ตฌ, ์ด ๋ชฉ๋ก์ ์ฐธ์กฐ๋ก ์ฌ์ฉํ์ฌ ์ด์ ์ ์ ์ก๋ ๊ฐ์ ํจ์จ์ ์ผ๋ก ์ธ์ฝ๋ฉ

๋ ๋์ ์ต์ ํ๋ฅผ ์ํด HPACK ์์ถ ์ปจํ
์คํธ๋ ์ ์ ๋ฐ ๋์ ํ
์ด๋ธ๋ก ๊ตฌ์ฑ
์ด๊ธฐ ๋ฒ์ ์ HTTP/2 ๋ฐ SPDY์์๋ ์ฌ์ฉ์์ค์ ์ฌ์ ๊ณผ ํจ๊ป zlib๋ฅผ ์ฌ์ฉํ์ฌ ๋ชจ๋ HTTP ํค๋๋ฅผ ์์ถ
์ด ๊ฒฝ์ฐ ์ ์ก๋๋ ํค๋ ๋ฐ์ดํฐ์ ํฌ๊ธฐ๊ฐ 85%~88% ๊ฐ์๋์๊ณ ํ์ด์ง ๋ก๋ ์๊ฐ ์ง์ฐ ์๊ฐ์ด ์๋นํ ๊ฐ์
๊ทธ๋ฌ๋ 2012๋
์ฌ๋ฆ TLS ๋ฐ SPDY ์์ถ ์๊ณ ๋ฆฌ์ฆ์ ๋ํด 'CRIME' ๋ณด์ ๊ณต๊ฒฉ๊ณผ ์ธ์
ํ์ด์ฌํน ์๋๊ฐ ์์๋ค๊ณ ๋ฐํ๋์์ต๋๋ค. ๊ทธ ๊ฒฐ๊ณผ, zlib ์์ถ ์๊ณ ๋ฆฌ์ฆ์ด HPACK์ผ๋ก ๊ต์ฒด
HPACK ์๊ณ ๋ฆฌ์ฆ์ ๊ฒ์๋ ๋ณด์ ๋ฌธ์ ๋ฅผ ํด๊ฒฐํ๊ณ , ๊ตฌํ์ด ํจ์จ์ ์ด๊ณ ๋จ์ํ๋ฉฐ, HTTP ํค๋ ๋ฉํ๋ฐ์ดํฐ์ ์์ถ์ด ๋ฐ์ด๋๋๋ก ์ค๊ณ
> [HTTP/2 ์๊ฐ | Web Fundamentals | Google Developers](https://developers.google.com/web/fundamentals/performance/http2?hl=ko)
| 60b270aea51741acbc85529ba085a764 |
|
HTTP/2 History | HTTP/2 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 |
The specification was published in 2015 | 885e4fcdf2f54071b610afdccf12260b |
|
HTTP/2 Implementation | HTTP/2 Notion | Jun 1, 2021 | Alan Jo | Alan Jo | Jun 1, 2021 |
### HTTP/2 Implementations
|Title|
|:-:|
|[h2 Protocol](https://texonom.com/h2-protocol-191d45dc94754d7894bc75873c605fcc)|
| baedd317af104ccdbdddbadf44cd41d8 |
|
HTTP/2 over QUIC | HTTP/2 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 | [QUIC](https://texonom.com/quic-d6a41b58fbc4414fb652d9d51878b6b7) [HOL Blocking](https://texonom.com/hol-blocking-7c6fd05b40194d01bba34ab930564073) |
HOL Block์ ๋ฌธ์
> [HOL(head of line) blocking](https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=parkjy76&logNo=220886731736)
| 2681733b516f4502aa3f40523153447f |
HTTP/2 Property | HTTP/2 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 |
parallelization, prioritization, and flow control over streams
### multiplexed protocol
- a single TCP connection with any number of bidirectional streams
- Parallel requests are handled over the same connection
- It provides the ability to prioritize one resource over another
- It allows for the unsolicited push of representations from servers to clients
- The request and response headers are compressed
- Frames are delivered on streams and the DATA frame payload is subject to flow control
### Common Property
- HTTP2๋ถํฐ handshake https ํ์
- introduces a new binary framing layer that is not backward-compatible
> [What's New in HTTP/3?](https://betterprogramming.pub/whats-new-in-http-3-10c2455a4f8c)
| 6ca24ec25acf447685973c2927380e75 |
|
HTTP2 Server Push | HTTP/2 Notion | Jun 1, 2021 | Alan Jo | Alan Jo | Aug 21, 2022 | [Service Worker](https://texonom.com/service-worker-df54a2fca9ca4927a6aaf7adc70c2da7) |
### chrome 106์์ default Disabled ๋๊ณ [HTTP Early Hints](https://texonom.com/http-early-hints-a845272a5a07409ab6ab922c93dba307) ๋ก ๋์ฒดํ๋๋ก ๊ถ์
ํด๋ผ์ด์ธํธ๊ฐ ์์ฒญํ๊ธฐ ์ ์ HTTP / 2 ํธํ ์๋ฒ๊ฐ HTTP / 2 ํธํ ํด๋ผ์ด์ธํธ๋ก ๋ฆฌ์์ค๋ฅผ ๋ณด๋
์๋น์ค ์์ปค๋ฅผ ํตํด ์บ์๋ ์์์ ๋ฆฌํด๋ฐ์ผ๋ฉด ์ค๋ณต๋์ ๋ฐ์ง ์๊ฒ ์ฌ์ฉํ๋ฉด ๋ ์ข๋ค
์ธ์ฆ๋์ง ์์ SSL์ธ ๊ฒฝ์ฐ ํฌ๋กฌ์์ ์๋ฒ ํธ์๋ ์์์ ๊ฑฐ์
> [Progressive Web App - HTTP2 ์๋ฒ ํธ์(Server Push)](https://sunjoong85.github.io/pwa,/http2/2018/04/16/Pogressive-Web-App-HTTP2%EC%99%80-Server-Push.html)
| 478fcc57b6634c919462cad5c4b025d3 |
h2 Protocol | HTTP/2 Implementations | Jun 1, 2021 | Alan Jo | Alan Jo | Apr 4, 2022 | 191d45dc94754d7894bc75873c605fcc |
||
HTTP abort | HTTP/3 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 | da1b032898904a68834ae189d8385674 |
||
HTTP Extensible Priorities | HTTP/3 Notion | Jun 29, 2023 | Alan Jo | Alan Jo | Jun 29, 2023 | [<script>defer](https://texonom.com/scriptdefer-76e367184949402aa5b7394209d8c31d) |
## RFC 9218
**a new standard that speeds the loading of webpages by up to 37%**


> [Introducing HTTP/3 Prioritization](https://blog.cloudflare.com/better-http-3-prioritization-for-a-faster-web)
| 6f9f236cd5804a97b974547cf3ff52c6 |
HTTP/3 Connection | HTTP/3 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 |
HTTP/3 ์๋ํฌ์ธํธ๋ HTTP/2์ ํ์ฅ์ธ Alt-Svc ํค๋๋ฅผ ํตํด ์ด๋ฃจ์ด์ง
HTTP ์๋ฒ๋ ์ด ํค๋๋ฅผ ํตํด HTTP/3 ์๋ํฌ์ธํธ์ ์กด์ฌ๋ฅผ ์๋ฆด ์ ์๊ณ , ์ด๋ฅผ ํ์ธํ ๋ธ๋ผ์ฐ์ ๋ (HTTP/3์ ์ง์ํ๋ค๋ฉด) ์ด ํค๋์ ์ ํ ํฌํธ๋ฅผ ํตํด HTTP/3 ์ฐ๊ฒฐ์ ์๋ฆฝ
| 76301ce0da25440885fcb23859c13283 |
|
HTTP/3 HTTPS | HTTP/3 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Aug 17, 2021 | [HTTPS](https://texonom.com/https-055d5ea9284841cb86885c0848ddeb4d) |

### TLS ํธ๋ ์
ฐ์ดํฌ์ QUIC ํธ๋ ์
ฐ์ดํฌ๊ฐ ๋์์ ๋ฐ์
HTTP/3 includes TLS 1.3 encryption
HTTP/3์ ํธ๋์
ฐ์ดํน ๊ณผ์ ์ด HTTP ์๋ต์ ๋ฐ์ ์ดํ์ ์ผ์ด๋จ
TCP ์ TLS์ ํธ๋์
ฐ์ดํน ๊ณผ์ ์์ ALPN์ผ๋ก HTTP/3์ผ๋ก ์ฐ๊ฒฐํ ์ ์๊ธฐ ๋๋ฌธ

| 6e2f432276ae45859f5efff791600106 |
HTTP/3 Property | HTTP/3 Notion | Jul 25, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 |
QUIC ํ๋กํ ์ฝ๋ก ๊ตฌํ
| ce975fc9b5b745a48e2a8d8fb4b237bf |
|
HTTP3 Server Push | HTTP/3 Notion | Jun 21, 2021 | Alan Jo | Alan Jo | Jul 25, 2021 | [HTTP2 Server Push](https://texonom.com/http2-server-push-478fcc57b6634c919462cad5c4b025d3) |
Several HTTP/3 frames are used to manage server push
similar to what is described in HTTP/2
Pushing is never "free", since while it saves a half round-trip it still uses bandwidth
It is often hard or impossible for the server-side to actually know with a high level of certainty if a resource should be pushed or not.
> [Server push](https://http3-explained.haxx.se/en/h3/h3-push)
| 88e89e9452104b2b9268a81a343dfb25 |
QUIC | HTTP/3 Notion | Jun 21, 2020 | Alan Jo | Alan Jo | Jul 9, 2023 | [UDP](https://texonom.com/udp-af787784332b4700b092f3c989339353) [HOL Blocking](https://texonom.com/hol-blocking-7c6fd05b40194d01bba34ab930564073) |
## Quick UDP Internet Connections ([TCP](https://texonom.com/tcp-df7eb3e975524c51802126a8e9c8b245) + [TLS](https://texonom.com/tls-2ac2c3475b704170926ee2d5f9a7d285) )
Developed by Google in 2012, QUIC provides native multiplexing
lost packets only impact the streams where data has been lost
All frame headers and payloads are subject to flow control

### QUIC Notion
|Title|
|:-:|
|[QUIC Standard](https://texonom.com/quic-standard-b6da7b8081fc405ca30bc39cc7ba919d)|
|[QUIC Implementation](https://texonom.com/quic-implementation-fa477300ac3c476cbb3c1ecc736a329b)|
|[QUIC Concurrency](https://texonom.com/quic-concurrency-4bc12220a4014d4a9664159e16f2dddb)|
### QUIC Usages
|Title|
|:-:|
|[QUIC HTTP](https://texonom.com/quic-http-6b002280bf994ba0b0f5a82f05cbb97f)|
|[QUIC Lib](https://texonom.com/quic-lib-fec7856e8a074331b854e2a099e2d3f4)|
|[QPACK](https://texonom.com/qpack-1f26c953abde4d07a4b0b012c3c4eb21)|
|[QUIC Connection ID](https://texonom.com/quic-connection-id-bab44b1036744a1a8ce9a2a31bebadf1)|
|[QUIC FEC](https://texonom.com/quic-fec-7250296886ec4e7395f6aa37565cac48)|
|[QUIC Proxy](https://texonom.com/quic-proxy-44c7aa5638da40bb8d1647a2985e11e1)|
### Simplest Expressions
> [The Illustrated QUIC Connection: Every Byte Explained](https://quic.xargs.org/)
### facebook QUIC
[[ํ์ด์ค๋ถ ์์ง๋์ด๋ง ๋ธ๋ก๊ทธ ๋ฒ์ญ] QUIC์ผ๋ก ์์ญ์ต ํธ๋ํฝ์ ๋์ํ๋ ๋ฒ. ๋ฒ์ญ์ ๋ฐฉ์ ์ฐ.](https://texonom.com/-quic
a6f0f26119a4417492e365134aa107bb)
> [QUIC (Quick UDP Internet Connection) ๊ฐ๋
](https://judo0179.tistory.com/41)
> [QUIC ํ๋กํ ์ฝ](https://blog.naver.com/PostView.nhn?blogId=renucs&logNo=220887163028)
> [5G ์ด์ฐ๊ฒฐ์๋์ ์น HTTP์ ๋์์ QUIC? | Ahea Team Study Blog](https://devahea.github.io/2019/04/30/5G-%EC%B4%88%EC%97%B0%EA%B2%B0%EC%8B%9C%EB%8C%80%EC%97%90-%EC%9B%B9-HTTP%EC%9D%98-%EB%8C%80%EC%95%88%EC%9D%80-QUIC/)
| d6a41b58fbc4414fb652d9d51878b6b7 |
QUIC Concurrency | QUIC Notion | Aug 17, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
๊ฐ๋ณ ํ์ผ์ ๊ตฌ๋ถํ์ฌ ์ค๊ฐ์ ํจํท ๋ก์ค๊ฐ ๋ฐ์ํด๋ ํด๋น ํ์ผ์ ์คํธ๋ฆผ๋ง ์ ์ง๊ฐ ๋๋๋ก ํ ์ ์๋ค
> [HTTP3, ์ฌ์ค ์ง์ง๋ก ๋ฐ๋๊ฑด TCP ์๋ค.](https://www.hamadevelop.me/http3/)
| 4bc12220a4014d4a9664159e16f2dddb |
|
QUIC Implementation | QUIC Notion | Oct 12, 2021 | Alan Jo | Alan Jo | Aug 28, 2023 |
### QUIC Implementations
|Title|
|:-:|
|[h3-29](https://texonom.com/h3-29-7681557227c847898e5a0ee6ad03e131)|
|[Q050](https://texonom.com/q050-49e05bbcb946471b9ad6e8c19d908c6d)|
|[quiche](https://texonom.com/quiche-ca738146a1a9498db668912483e61165)|
|[msquic](https://texonom.com/msquic-a9b6d161dff24357a09124afecc49f3f)|
|[sn2-quic](https://texonom.com/sn2-quic-8cad3efa2e0c48f6b26aae32d9eb0e88)|
|[](https://texonom.com/1f1fd900d4a549c9a6526bb19b354f2b)|
> [HTTP/3 - Wikipedia](https://en.wikipedia.org/wiki/HTTP/3#Server)
| fa477300ac3c476cbb3c1ecc736a329b |
|
QUIC Standard | QUIC Notion | Oct 12, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
### QUIC Standards
|Title|
|:-:|
|[RFC 8999](https://texonom.com/rfc-8999-43ec7ca9d474486f99b582b4a38f0b55)|
|[RFC 9000](https://texonom.com/rfc-9000-03e8e7a0e9e047b8a4a383f9705d9d41)|
|[RFC 9001](https://texonom.com/rfc-9001-ec039027823340be8eecdaa0f0ef982a)|
|[RFC 9002](https://texonom.com/rfc-9002-79bec2103ba249099f5d4506d7989655)|
| b6da7b8081fc405ca30bc39cc7ba919d |
|
[xquic](https://github.com/alibaba/xquic) | QUIC Implementations | Oct 12, 2021 | Alan Jo | Alan Jo | Aug 28, 2023 | 1f1fd900d4a549c9a6526bb19b354f2b |
||
h3-29 | QUIC Implementations | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
IETF ์์๋ h3-29๋ฅผ ๊ณต์์ ์ผ๋ก QUIC ํ๋กํ ์ฝ๋ก ๊ฐ๋ฐ ์ค
| 7681557227c847898e5a0ee6ad03e131 |
|
msquic | QUIC Implementations | Nov 7, 2021 | Alan Jo | Alan Jo | Nov 7, 2021 |
### Cross-platform, C implementation of the IETF QUIC protocol
> [GitHub - microsoft/msquic: Cross-platform, C implementation of the IETF QUIC protocol.](https://github.com/microsoft/msquic)
| a9b6d161dff24357a09124afecc49f3f |
|
Q050 | QUIC Implementations | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
๊ตฌ๊ธ ์์ฒด QUIC ํ๋กํ ์ฝ
| 49e05bbcb946471b9ad6e8c19d908c6d |
|
quiche | QUIC Implementations | Jun 21, 2020 | Alan Jo | Alan Jo | Jan 15, 2023 |
## Protocol
TCP or QUIC (HTTP3 UDP)
quiche is an implementation of the QUIC transport protocol and HTTP/3 as specified by the IETF.
Protocol ํผ์ก ์ ์ด ์๊ณ ๋ฆฌ์ฆ 2๊ฐ ํ์ค
### quiche modules
|Title|
|:-:|
|[HyStart++](https://texonom.com/hystart-d157cf120edd42c694bebd2e6a55192b)|
quiche ์์ HyStart++์ ๊ธฐ๋ณธ์ ์ผ๋ก ์ผ์ ธ ์๊ณ Reno ์ CUBIC ํผ์ก ์ ์ด์ ๋ชจ๋ ์ด์ฉ ๊ฐ๋ฅํ๋ฉฐ API๋ฅผ ํตํด ์ ์ด๊ฐ ๊ฐ๋ฅ ํฉ๋๋ค.
### quiche visualization tools
|Title|
|:-:|
|[qlog](https://texonom.com/qlog-4d685edc148f42fcbf32cd83f52dad5b)|
|[qvis](https://texonom.com/qvis-101e446abe484e83ae4b2e54aff6c1ec)|
### docker example
> [junhochoi/quiche-docker-examples](https://github.com/junhochoi/quiche-docker-examples/tree/master/nginx)
> [cloudflare/quiche](https://github.com/cloudflare/quiche)
> [quiche์ CUBIC์ HyStart++ ์ง์](https://blog.cloudflare.com/ko/cubic-and-hystart-support-in-quiche-ko/)
| ca738146a1a9498db668912483e61165 |
|
sn2-quic | QUIC Implementations | Feb 18, 2022 | Alan Jo | Alan Jo | Feb 18, 2022 |
## amazon
[s2n-quic](https://github.com/aws/s2n-quic)
| 8cad3efa2e0c48f6b26aae32d9eb0e88 |
|
HyStart++ | quiche modules | Jun 21, 2020 | Alan Jo | Alan Jo | Jun 1, 2021 |
CUBIC์ ํผ์ก ํํผ ์ค์ CWND ์ฆ๊ฐ๋ง์ ๋ณ๊ฒฝ ํ์์ผ๋ฏ๋ก CUBIC์ ์ ์๋ค์ ์ฌ๋ก ์คํํธ๋ฅผ ๊ฐ์ ํ๊ธฐ ์ํด ๋ณ๋์ ์์
์ ํ์์ต๋๋ค. ๊ทธ ๊ฒฐ๊ณผ๊ฐ HyStart ์
๋๋ค.
> 
> 
- RTT ์ง์ฐ ์ํ๋ง: RTT์ ์ฆ๊ฐ๊ฐ ์ฌ๋ก ์คํํธ ๊ตฌ๊ฐ์์ ์ผ์ ์์น๋ฅผ ์ด๊ณผํ๋ฉด ์ฌ๋ก ์คํํธ์์ ์ผ์ฐ ๋ฒ์ด๋ ํผ์ก ํํผ ๋ชจ๋๋ก ๋ณ๊ฒฝ.
- ACK ํ๋ ฌ: ACK์ ๋์ฐฉ ์๊ฐ ๊ฐ๊ฒฉ์ด ์ ์ ๊ธธ์ด์ง๊ณ ์ผ์ ์์น๋ฅผ ์ด๊ณผํ๋ฉด ์ฌ๋ก ์คํํธ์์ ์ผ์ฐ ๋ฒ์ด๋ ํผ์ก ํํผ ๋ชจ๋๋ก ๋ณ๊ฒฝ.
> [quiche์ CUBIC์ HyStart++ ์ง์](https://blog.cloudflare.com/ko/cubic-and-hystart-support-in-quiche-ko/)
> [draft-balasubramanian-tcpm-hystartplusplus-03 - HyStart++: Modified Slow Start for TCP](https://tools.ietf.org/html/draft-balasubramanian-tcpm-hystartplusplus-03)
| d157cf120edd42c694bebd2e6a55192b |
|
qlog | quiche visualization tools | Jun 21, 2020 | Alan Jo | Alan Jo | Jun 1, 2021 | 4d685edc148f42fcbf32cd83f52dad5b |
||
qvis | quiche visualization tools | Jun 21, 2020 | Alan Jo | Alan Jo | Jun 1, 2021 | 101e446abe484e83ae4b2e54aff6c1ec |
||
RFC 8999 | QUIC Standards | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
## Version-Independent Properties of QUIC
ํต์นญ Invariants. ๋ฒ์ ์ ๊ด๊ณ ์์ด ๊ณตํต์ ์ธ ์ฌํญ์ ๋ํ ๊ฒ
| 43ec7ca9d474486f99b582b4a38f0b55 |
|
RFC 9000 | QUIC Standards | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
## QUIC: A UDP-Based Multiplexed and Secure Transport
ํต์นญ Transport
์ ์ผ ์ค์ฌ์ด ๋๋ ๋ด์ฉ์ผ๋ก ํจํท ํฌ๋งท, ์ํ ๋จธ์ , ๊ธฐ๋ณธ์ ์ธ ๋์
QUIC์ ๋ํด ์๊ณ ์ถ๋ค๋ฉด ์ฌ๊ธฐ๋ถํฐ
| 03e8e7a0e9e047b8a4a383f9705d9d41 |
|
RFC 9001 | QUIC Standards | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
## Using TLS to Secure QUIC
ํต์นญ QUIC-TLS
QUIC์ ๊ธฐ๋ณธ์ ์ผ๋ก ์ํธํ๋ฅผ ํด์ผ ํ๋๋ฐ TLS 1.3 ๊ธฐ๋ฐ์ผ๋ก ์ฝ๊ฐ์ ํ์ฅ์ ๋ํ๊ณ
TLS 1.3์ ๋ํด์ ๊ธฐ๋ณธ์ ์ผ๋ก ์ดํด๊ฐ ์์ด์ผ
| ec039027823340be8eecdaa0f0ef982a |
|
RFC 9002 | QUIC Standards | Jun 1, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
## QUIC Loss Detection and Congestion Control
ํต์นญ Recovery. Transport์ ์ถ๊ฐํ์ฌ ์์ค ๋ณต๊ตฌ ๋ฐ ํผ์ก ์ ์ด ์๊ณ ๋ฆฌ์ฆ ๋ค๋ฃธ
> [quiche์ CUBIC์ HyStart++ ์ง์](https://blog.cloudflare.com/ko-kr/cubic-and-hystart-support-in-quiche-ko-kr/)
| 79bec2103ba249099f5d4506d7989655 |
|
QPACK | QUIC Usages | Jul 25, 2021 | Alan Jo | Alan Jo | Aug 28, 2023 | [HPACK](https://texonom.com/hpack-ca414a54b1c04d7ebaa55f5152cf1f12) |
### request and response headers are compressed by QPACK
RFC9204
| 1f26c953abde4d07a4b0b012c3c4eb21 |
QUIC Connection ID | QUIC Usages | Aug 17, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
์ปค๋ฅ์
ID๋ฅผ ๊ธฐ์ตํด์ ํธ๋์
ฐ์ดํฌ๋ฅผ ์ฒ์๋ถํฐ ์งํํ์ง ์์ ์ ์๋๋ก
WIFI LTE ์ฌ์ด ๊ตํ ์์ฐ์ค๋ฝ๊ฒ ํธ๋์
ฐ์ดํฌ ์ฒจ๋ถํฐ ์ํด๋ ๋๊ฒ
> [HTTP3, ์ฌ์ค ์ง์ง๋ก ๋ฐ๋๊ฑด TCP ์๋ค.](https://www.hamadevelop.me/http3/)
| bab44b1036744a1a8ce9a2a31bebadf1 |
|
QUIC FEC | QUIC Usages | Oct 12, 2021 | Alan Jo | Alan Jo | Oct 12, 2021 |
## Forward error Correction
๋ฐ์ดํฐ ์ ์ก์์ ์ค๋ฅ ์ ์ด๋ฅผ ํ๋ ๋ฐฉ๋ฒ
์ก์ ๊ธฐ๋ ์ค๋ณต ๋ฐ์ดํฐ๋ฅผ ์ ์กํ๊ณ ๋ฐ๋ ์ชฝ์์๋ ์๋ณํ ์ ์๋ ์ค๋ฅ๊ฐ ์๋ ๋ฐ์ดํฐ์ ๋ถ๋ถ๋ง์ ์ธ์
> [QUIC v2](https://http3-explained.haxx.se/ko/quic-v2)
| 7250296886ec4e7395f6aa37565cac48 |
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