> For the complete documentation index, see [llms.txt](https://krjaeh0.gitbook.io/j-log/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://krjaeh0.gitbook.io/j-log/network/start-here/readme.md).

# Welcome

네트워크를 빠르게 정리하고, 필요할 때 바로 찾아보기 위한 문서입니다.

* 개념 정리: “왜 그런가”를 중심으로 적습니다.
* 운영/트러블슈팅: “어떻게 확인하나”를 중심으로 적습니다.
* 중복 내용은 대표 문서로 통합합니다.

### 어디서부터 볼까

추천 흐름입니다.

1. **Fundamentals**: 네트워크 큰 그림과 기본 용어
2. **IP Addressing & NAT**: 서브넷/라우팅/게이트웨이 이해의 기반
3. **Protocols**: TCP/UDP/HTTP/DNS 등 프로토콜 정리
4. **Routing & Switching**: 라우팅 프로토콜과 L2/L3 기능
5. **Security**: VPN/방화벽/SSH/TLS 등
6. **Tools & Operations**: 커맨드/모니터링/자동화

### 섹션 바로가기

<table data-view="cards"><thead><tr><th>섹션</th><th data-card-target data-type="content-ref">이동</th></tr></thead><tbody><tr><td>Fundamentals</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/6artD43iOsnH0if5LUqd">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/6artD43iOsnH0if5LUqd</a></td></tr><tr><td>IP Addressing &#x26; NAT</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/ZtOYbrh7aP82qHKIECEc">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/ZtOYbrh7aP82qHKIECEc</a></td></tr><tr><td>Protocols</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/enzbFctxwRBn3p6CodKa">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/enzbFctxwRBn3p6CodKa</a></td></tr><tr><td>Routing &#x26; Switching</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/pCoVAhDcVa2CIVu3al7E">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/pCoVAhDcVa2CIVu3al7E</a></td></tr><tr><td>Security</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/WCw0VZFTYilt1B7fJ5T0">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/WCw0VZFTYilt1B7fJ5T0</a></td></tr><tr><td>Tools &#x26; Operations</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/FoKLsiTX5ZFHMyCk9qzq">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/FoKLsiTX5ZFHMyCk9qzq</a></td></tr><tr><td>Servers &#x26; Storage</td><td><a href="/spaces/Y8UYFuEu8fQDSvspnrVC/pages/GolYqtZkQnvecZauEiuZ">/spaces/Y8UYFuEu8fQDSvspnrVC/pages/GolYqtZkQnvecZauEiuZ</a></td></tr></tbody></table>

### 자주 찾는 페이지

* 라우팅 개념: [Routing](/j-log/network/routing-and-switching/routing.md)
* 서브넷/주소: [Subnetting](/j-log/network/ip-addressing-and-nat/subnetting.md), [CIDR](/j-log/network/ip-addressing-and-nat/cidr.md)
* NAT: [Network\_Address\_Translation](/j-log/network/ip-addressing-and-nat/network_address_translation.md)
* HTTP 메소드: [HTTP\_Method](/j-log/network/protocols/http_method.md)
* 진단 커맨드: [NetworkCommands](/j-log/network/tools-and-operations/networkcommands.md)

{% hint style="info" %}
문서가 두 개로 나뉘어 보이면, 보통 한쪽에 “통합됨” 안내가 있습니다.\
그 링크를 따라가면 최신/대표 문서로 이동합니다.
{% endhint %}


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