main proxy k bary mey jana chata hon ka proxy kia cheez hai or hum is ko kis trah istimal kar sakty hain. kia may iss ko active directory users kay saat istimal kar sakta hoon.
main proxy k bary mey jana chata hon ka proxy kia cheez hai or hum is ko kis trah istimal kar sakty hain. kia may iss ko active directory users kay saat istimal kar sakta hoon.
is ke bare main mujhy bhi janna hai
yes yar koi tho batain proxy k barin mein
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A server that sits between a client application, such as a Web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself. If not, it forwards the request to the real server.
Proxy servers have two main purposes
1 Improve Performance:
Proxy servers can dramatically improve performance for groups of users. This is because it saves the results of all requests for a certain amount of time. Consider the case where both user X and user Y access the World Wide Web through a proxy server. First user X requests a certain Web page, which we'll call Page 1. Sometime later, user Y requests the same page. Instead of forwarding the request to the Web server where Page 1 resides, which can be a time-consuming operation, the proxy server simply returns the Page 1 that it already fetched for user X. Since the proxy server is often on the same network as the user, this is a much faster operation. Real proxy servers support hundreds or thousands of users. The major online services such as America Online, MSN and Yahoo, for example, employ an array of proxy servers.
2 Filter Requests:
Proxy servers can also be used to filter requests. For example, a company might use a proxy server to prevent its employees from accessing a specific set of Web sites.
OR
proxy: In communications, a proxy is something that acts as a server, but when given requests from clients, acts itself as a client to the real servers. Analogy: Consider talking to somebody who speaks a foreign language through a translator. You talk to the translator, who receives your statements, then regenerates something else completely to the other end. The translator serves as your proxy. Key point: The communication terminates at the proxy. In other words, the proxy doesn't forward data so much as it tears it completely apart. For example, an HTTP proxy doesn't forward every request sent through it. Instead, it first examines if it already has the requested web page in its cache. If so, then it returns that page without sending another request to the destination server. Because proxies completely terminate the communication channel, they are considered a more secure firewall technology than packet filters, because they dramatically increase the isolation between the networks. Key point: You will occasionally be scanned for proxies. ISPs scan their users for proxies. Hackers scan the Internet looking for proxies they can anonymize their connections with. Certain servers (like IRC servers) scan clients for proxies in order to prevent anonymous connections
i am adding two diagram will clear your concept [INSHALLAH]
Last edited by nom; 18th March 2009 at 04:50 PM.
n O m
Why is it drug addicts and computer aficionados are both called users?
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zabardast
very nice
Thanks a lot
thanks nom!
kash urdu main samjhate to mujhe bhi samjh aa jati nom bhai
SORRY FOR MY POOR URDU
KOOSHISH KI HAY SAMJHANAY KI URDU MAIN
nom bhai main aapp ka kin lafzon main shukria ada karoo
app ne to mujhe nehal kar dia .
main app ko shukria nahi kahoon ga kio ke shukria kehnay se ahsaan utar jata hai .plz main app se porsonal chat karna chahta hoon mera emal hai .
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ویب پراکسی خصوصی مقاصد کے لیے استعمال کیا جانے والا ایچ ٹی ٹی پی سرور ہے۔اور اس کا بنیادی مقصد فائر وال یا کسی اور وجہ سے بلاک یوزر کو ویب سائٹ تک رسائی اور سکیورٹی مہا کرنا ہے۔سکول ،کالجز اور یونیورسٹیز میں مال وئیر،سپائی وئیر وغیرہ سے بچاﺅ کے لیے ویب پراکسیز استعمال کی جاتی ہیں۔
پراکسی سائٹ آپ کے ویب براﺅزر سے درخواست وصول کرتی ہے اور پھر اس کو متعلقہ ویب سرور کی طرف ارسال کرتی ہے،اور پھر متعلقہ ویب سرور سے ڈیٹا لے کر آپ کے ویب براﺅزر کی طرف ارسال کر دیتی ہے۔
پراکسی سائٹ استعمال کرنے کا سب سے بڑا فائدہ یہ ہے کہ آپ چونکہ ایک تھرڈ پارٹی سائٹ کے زریعہ سے سرفنگ کرتے ہیں اس لیے آپ کی شناحت محفوظ رہتی ہے
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