쉐도잉 연습: Proxy vs Reverse Proxy (Real-world Examples) - 영상으로 영어 말하기 배우기
레슨 만드는 중...
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Why is Nginet called a reverse proxy?
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What is a proxy anyways?
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Let's take a look.
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Two common types of proxy are forward proxy and reverse proxy.
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A forward proxy is a server that sits between a group of client machines and the internet.
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When those clients make requests to websites on the internet the forward proxy acts as a middleman intercepts those requests
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and talks to the web servers on behalf of those client machines why would anyone want to do
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that here are a few reasons one a forward proxy protects
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the client's online identity by using a forward proxy to connect
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to a website the ip address of the client is hidden
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from the server only the ip address of the proxy is visible, it would be harder to trace back to the client.
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Two, a forward proxy can be used to bypass browsing restrictions.
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Some institutions like governments, schools, and big businesses use firewalls to restrict access to the internet.
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By connecting to a forward proxy outside the firewalls, the client machine can potentially get around these restrictions.
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It does not always work because the firewalls themselves could block the connections to the proxy.
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3. A forward proxy can be used to block access to certain content.
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It is not uncommon for schools
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and businesses to configure the networks to connect all clients to the web through the proxy
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and apply filtering rules to disallow sites like social networks.
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It is worth noting that a forward proxy normally requires a client to configure its application to point to it.
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For large institutions, they usually apply a technique called transparent proxies to streamline the process.
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A transparent proxy works with layer 4 switches to redirect certain types of traffic to the proxy automatically.
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There is no need to configure the client machines to use it.
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It is difficult to bypass a transparent proxy when the client is on the institution's network.
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In summary, a forward proxy sits between the client and the internet and acts on behalf of the client.
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Now let's take a look at the reverse proxy.
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A reverse proxy sits between the internet and the web servers.
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It intercepts the requests from the clients and talks to the web server on behalf of the clients.
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Why would a website use a reverse proxy?
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Here are a few good reasons.
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One, a reverse proxy could be used to protect a website.
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The website's IP addresses are hidden behind the reverse proxy and are not revealed to the clients.
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This makes it much harder to target a DDoS attack against a website.
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Second, a reverse proxy is used for load balancing.
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A popular website handling millions of users every day is unlikely to be able to handle the traffic with a single server.
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A reverse proxy can balance a large amount of incoming requests
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by distributing the traffic to a large pool of web servers and effectively preventing any single one of them from becoming overloaded.
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Note that this assumes that the reverse proxy can handle the incoming traffic.
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Services like Kyle Flare put reverse proxy servers in hundreds of locations all around the world.
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This puts the reverse proxy close to the users and at the same time provides a large amount of processing capacity.
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Third, a reverse proxy caches static content.
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A piece of content could be cached on the reverse proxy for a period of time.
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If the same piece of content is requested again from the reverse proxy, the locally cached version could be quickly returned.
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Fourth, a reverse proxy can handle SSL encryption.
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SSL handshake is computationally expensive.
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A reverse proxy can free up the origin servers from those expensive operations.
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Instead of handling SSL for all clients, a website only needs to handle SSL handshake from a small number of reverse proxies.
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Reverse proxies are everywhere.
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For a modern website, it is not uncommon to have many layers of reverse proxies.
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The first layer could be an edge service like Cloudflare.
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The reverse proxies are deployed to hundreds of locations worldwide close to the users.
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The second layer could be an API gateway or load balancer at the hosting provider.
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Many cloud providers combine these two layers into a single ingress service.
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The user would enter the cloud network at the edge close to the user.
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And from the edge, the reverse proxy connects over a fast fiber network to the load balancer, where the request is evenly distributed over a cluster of web servers.
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이 레슨의 어휘와 말하기 포인트
이 말하기 레슨은 영상 “Proxy vs Reverse Proxy”을(를) 바탕으로 합니다. 가장 자주 반복되는 단어는 다음과 같습니다: proxy, reverse, client, server, forward. 이 영상에는 섀도잉할 문장 58개와 단어 786개가 있습니다. 말하는 구간의 길이는 5:06입니다. 화자는 분당 약 154단어로, 일상 대화에 가까운 자연스러운 속도로 말합니다. 영어에서 가장 많이 쓰이는 3,000단어에 속하는 단어가 68%뿐이라 어휘가 어려운 편입니다.
이 영상의 핵심 어휘
영상에 나오는 익혀 둘 만한 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| proxy 명사 | /ˈpɹɑk.si/ | 대리 |
| server 명사 | /ˈsɝvɚ/ | 서버, 봉사기 |
| layer 명사 | /ˈleɪ̯ɚ/ | 층 |
| connect 동사 | /kəˈnɛkt/ | 잇다, 연결하다 |
| transparent 형용사 | /tɹænsˈpæɹənt/ | 투명하다 |
| cache 명사 | /kæʃ/ | 캐시 |
| cloud 명사 | /ˈklaʊ̯d/ | 구름 |
| institution 명사 | /ˌɪn.stɪˈtʃuː.ʃən/ | 제도 |
| restriction 명사 | /ɹɪˈstɹɪkʃən/ | 제한 |
| topic 명사 | /ˈtɑpɪk/ | 화제, 주제 |
| technique 명사 | /tɛkˈniːk/ | 기술 |
| reveal 동사 | /ɹɪˈviːl/ | 나타내다, 드러내다 |
| visible 형용사 | /ˈvɪzɪb(ə)l/ | 보이는 |
| summary 명사 | /ˈsʌm.ə.ɹi/ | 요약, 개요 |
| reader 명사 | /ˈɹi.dɚ/ | 독자, 읽는 사람 |
주의할 발음
- “sh”와 “zh” 소리: cache /kæʃ/, institution /ˌɪn.stɪˈtʃuː.ʃən/, restriction /ɹɪˈstɹɪkʃən/, potentially /pəˈtɛnʃ(ə)li/, encryption /ɪnˈkɹɪpʃən/
- 긴 단어 — 강세 위치에 주의: institution /ˌɪn.stɪˈtʃuː.ʃən/, potentially /pəˈtɛnʃ(ə)li/, computationally /ˌkɑmpjʊˈteɪʃənəli/
한국어 화자가 어려워하는 소리:
- /f/ — ㅍ(/p/)으로 바꾸지 말고 윗니를 아랫입술에 대기: behalf /bɪˈhæf/, filter /ˈfɪltɚ/, fiber /ˈfaɪ.bɚ/, configure /kənˈfɪɡə(ɹ)/, firewall /ˈfaɪ(ə)ɹˌwɔl/
- /v/ — ㅂ(/b/)과 구별하기: reverse /ɹɪˈvɝs/, server /ˈsɝvɚ/, provider /pɹəˈvaɪ.də(ɹ)/, reveal /ɹɪˈviːl/, visible /ˈvɪzɪb(ə)l/
- /z/ — ㅈ이 아니라 성대를 울리는 /s/: visible /ˈvɪzɪb(ə)l/, anyways /ˈɛn.iˌweɪz/, newsletter /ˈn(j)uzˌlɛtɚ/, browse /bɹaʊz/
이 영상으로 연습하는 방법
- 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
- 0.75배속으로 한 문장씩 섀도잉을 시작하고, 익숙해지면 보통 속도로 돌아갑니다.
- 자신의 목소리를 녹음해 원본과 비교하고, proxy, server, layer 같은 단어에 특히 주의합니다.
쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법
쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.