शैडोइंग अभ्यास: Proxy vs Reverse Proxy (Real-world Examples) - वीडियो के साथ अंग्रेजी बोलना सीखें
पाठ बनाया जा रहा है...
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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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इस पाठ की शब्दावली और बोलने के सुझाव
यह स्पीकिंग पाठ वीडियो “Proxy vs Reverse Proxy” पर आधारित है। सबसे ज़्यादा दोहराए गए शब्द ये हैं: proxy, reverse, client, server, forward। इस वीडियो में शैडोइंग के लिए 58 वाक्य और 786 शब्द हैं। बोला गया हिस्सा 5:06 लंबा है। वक्ता लगभग 154 शब्द प्रति मिनट की स्वाभाविक गति से बोलता है, जो रोज़मर्रा की बातचीत के करीब है। केवल 68% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं, इसलिए शब्दावली कठिन है।
इस वीडियो की मुख्य शब्दावली
वीडियो के 15 सीखने लायक शब्द, उच्चारण और अर्थ के साथ:
| शब्द | उच्चारण | अर्थ |
|---|---|---|
| reverse संज्ञा | /ɹɪˈvɝs/ | विलोमित, विपरीत |
| server संज्ञा | /ˈsɝvɚ/ | सर्वर |
| layer संज्ञा | /ˈleɪ̯ɚ/ | परत, तह |
| transparent विशेषण | /tɹænsˈpæɹənt/ | पारदर्शक, पारदर्शी |
| cloud संज्ञा | /ˈklaʊ̯d/ | मेघ, बादल |
| institution संज्ञा | /ˌɪn.stɪˈtʃuː.ʃən/ | रीति, प्रथा |
| provider संज्ञा | /pɹəˈvaɪ.də(ɹ)/ | प्रदाता, दाता |
| restriction संज्ञा | /ɹɪˈstɹɪkʃən/ | प्रतिबंध, बंदिश |
| topic संज्ञा | /ˈtɑpɪk/ | प्रसंग, विषय |
| technique संज्ञा | /tɛkˈniːk/ | तकनीक |
| summary संज्ञा | /ˈsʌm.ə.ɹi/ | सारांश, ख़ुलासा |
| reader संज्ञा | /ˈɹi.dɚ/ | पाठक, पाठिका |
| filter संज्ञा | /ˈfɪltɚ/ | फ़िल्टर, साफी |
| trace संज्ञा | /tɹeɪs/ | चिह्न |
| combine क्रिया | /kəmˈbaɪn/ | मिलाना |
ध्यान देने योग्य उच्चारण
- “sh” और “zh” की ध्वनियाँ: cache /kæʃ/, institution /ˌɪn.stɪˈtʃuː.ʃən/, restriction /ɹɪˈstɹɪkʃən/, potentially /pəˈtɛnʃ(ə)li/, encryption /ɪnˈkɹɪpʃən/
- लंबे शब्द — बलाघात सही रखें: institution /ˌɪn.stɪˈtʃuː.ʃən/, potentially /pəˈtɛnʃ(ə)li/, computationally /ˌkɑmpjʊˈteɪʃənəli/
हिंदी भाषियों के लिए मुश्किल ध्वनियाँ:
- /v/ और /w/ का फ़र्क़ — /v/ में ऊपर के दाँत निचले होंठ को छूते हैं, /w/ में होंठ गोल होते हैं: reverse /ɹɪˈvɝs/, server /ˈsɝvɚ/, provider /pɹəˈvaɪ.də(ɹ)/, reveal /ɹɪˈviːl/, visible /ˈvɪzɪb(ə)l/
- /z/ — इसे “ज” (/dʒ/) न बनाएँ: visible /ˈvɪzɪb(ə)l/, anyways /ˈɛn.iˌweɪz/, newsletter /ˈn(j)uzˌlɛtɚ/, browse /bɹaʊz/
- शब्द की शुरुआत में s + व्यंजन — पहले “इ” न जोड़ें: static /ˈstæt.ɪk/, streamline /ˈstriːmlaɪn/
इस वीडियो से अभ्यास कैसे करें
- पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
- 0.75× गति से शुरू करें, एक-एक वाक्य की शैडोइंग करें, और सहज लगने पर सामान्य गति पर लौटें।
- अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर reverse, server, layer जैसे शब्दों पर ध्यान दें।
शैडोइंग तकनीक क्या है?
शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।