Group18_Awesome4some:Proxy server.ppt
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This document discusses various types of proxy servers including anonymous proxy servers, HTTP proxy servers, FTP proxy servers, caching proxy servers, content filtering proxy servers, reverse proxy servers, and ICAP servers. It provides details on their functions and purposes. Team members on the Awesum4sum project are listed and an index outlines topics covered which include introduction to proxy servers, advantages and disadvantages, and a demonstration on CC Proxy.
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Group18_Awesome4some:Proxy server.ppt
- 1. Awesum4sum
- 2. Team Members Lisha Murthy (1MS07IS041) Anitha B. S (1MS07IS005) Caroline I (1MS07IS017) Prabha P (1MS07IS068)
- 3. Index Introduction to Proxy Server Anonymous Proxy Server HTTP Proxy Server FTP Proxy Server Caching Content Filtering ICAP Reverse Proxy Server Advantages and Disadvantages of Proxy Server Demonstration on CC Proxy
- 4. PROXY SERVER
- 5. WHAT IS A PROXY SERVER
- 6. Client sends a request Server provides the services CLIENT WEB SERVER
- 7. PROXY SERVER Sends request to the Proxy Server Makes requests for the client CLIENT WEB SERVER
- 8. ANONYMOUS PROXY SERVERS
- 9. WHY DO WE NEED AN ANONYMOUS PROXY SERVER Web resources can collect information about you, using your IP address. You might be targeted by the marketers who send regular spam and junk e-mails. A website can automatically exploit the security holes in your system.
- 10. WHAT IS AN ANONYMOUS PROXY SERVER Anonymous Proxy Server hides your IP address. 192.245.17.1 201.124.17.1 They do not let anyone know what you are surfing.
- 11. When few sites are blocked by the internet providers in certain countries or geographical areas, anonymous proxy servers can be used.
- 12. Anonymous surfing proxy sites They allow you to enter the address (URL) of the site you wish to go to at the anonymous surfing proxy site. The site will retrieve the page for you and present it to you. The site you visit will not receive any particulars about your system.
- 16. Ideal Scenario
- 17. With Proxy
- 18. FTP
- 20. FTP
- 21. P2P
- 22. Email
- 26. Proxy Chains
- 32. If it exists in cache…….
- 36. Internet Content Adaptation Protocol (ICAP) ICAP servers are focused on a specific function, for example, add insertion, virus scanning, content translation, language translation, or content filtering. ICAP allows its clients to pass HTTP based (HTML) messages (Content) to ICAP servers for adaptation (content manipulation).
- 38. REVERSE PROXY
- 39. WEB SERVER CLIENT 1 CLIENT 3 CLIENT 2
- 40. FORWARD PROXY SERVER WEB SERVER INTERNET PROXY SERVER CLIENT 1 CLIENT 3 CLIENT 2
- 41. REVERSE PROXY SERVER WEB SERVER INTERNET REVERSE PROXY SERVER CLIENT 3 CLIENT 1 CLIENT 2
- 42. SECURITY WEB SERVER INTERNET REVERSE PROXY Acts as a additional layer of defense and protects against some OS and Web server specific attacks.
- 43. CACHING WEB SERVER Can offload the web server by caching most frequently used web pages. INTERNET cache
- 44. LOAD BALANCING WEB SERVER INTERNET Less load on the server as the cache stores the static web pages cache
- 45. COMPRESSION Awesum 4sum Awesum 4sum Compress content before delivering it to site visitors to optimize load times.
- 46. TUNNELING WEB SERVER INTERNET Proxy server It is a web-based page that takes a site that is blocked and "tunnels" it, allowing the user to view blocked pages. CLIENT 1
- 48. Cache proxies reduces load on main server.
- 49. Acts as a security layer for clients and main server.
- 50. Can block any website from access
- 51. Can be used to view certain unblocked web sites.
Editor's Notes
- Hypertext is words/ phrases/ images which upon a click or stroke from the keyboard redirects to the related page. Thus hypertext (hyperlinks) forms a sort of network of related data.
- This kind of networking led to the implementation of Internet by Tim Berners Lee.
- Ideal scenario would have been that all the systems be connected to the Internet directly. Any request/ response transaction involves only two entities like in the case of mobile phones where in this case the client system requests something from the server and the server responds back.
- But in case of institutions or organizations where tend to block certain sites which are often found very useful to the people there there arises the need for proxy server. Like the telephone operators in olden days, proxy servers intercept the requests and finally our goal is achieved through an alternate IP address.