logging in or signing up VPN Presentation RanaFarhan Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 726 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: May 18, 2010 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: jagirankit8000 (15 month(s) ago) plz. send this presentation on jagirankit8000@gmail.com i want to present in my class. want to become networkadministrator in future. Saving..... Post Reply Close Saving..... Edit Comment Close By: PANDADIPAK (16 month(s) ago) IT'S BEST FOR PRIVAT NETWORK....... Saving..... Post Reply Close Saving..... Edit Comment Close By: tripathi706 (18 month(s) ago) pls, send this presentation in my e-mail id. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Group Members : Farhan Saleem – L1F07BSCS2007 Tanveer Sabir – L1F07BSCS2047 Group Members Topic : Virtual Private Network Topic Internet VPN Contents : Contents 3 Introduction How VPN works? Tunneling VPN Security Requirements of VPN Advantages Applications Conclusion Introduction : Introduction 4 Virtual Private Network is a logical connection between two or more different location over private /public network to secure private data or traffic. In VPN the messages are carried on a public network(ie: internet)using standard protocols or over a service provider’s network. Introduction : Introduction 5 A VPN makes it possible to have protected sharing of sensible data through a public network In order to perform the data transfer safely VPN uses special tunneling processes and complex encryption procedures. Slide 6: 6 How VPN works? : How VPN works? 7 A VPN works by using a shared public infrastructure while maintaining privacy through security procedures and tunneling protocols. In VPN the data are passed through a “tunnel”, in which a data which is not properly encrypted cannot be entered. Tunneling : Tunneling 8 Virtual private network technology is based on the idea of tunneling. By tunneling process only the recipient at the other end of transmission can see or access the data inside the protective encryption shell. What is Tunneling : What is Tunneling 9 Tunneling is the process of placing an entire packet within another packet and sending it over a network. Tunneling requires three different protocols: Carrier protocol - The protocol used by the network that the information is traveling over. Encapsulating protocol - The protocol that is wrapped around the original data. Passenger protocol - The original data being carried. Slide 10: 10 The truck is the carrier protocol, the box is the encapsulating protocol and the computer is the passenger protocol. Slide 11: 11 Tunneling encrypts and encapsulates our own network protocols within IP. The protocols of the outer packet is understood by the network and two end points called tunneling interface, where the packets enters and exits the network For example, you can place a packet that uses a protocol not supported on the Internet (such as NetBeui) inside an IP packet and send it safely over the Internet. Tunneling protocols used in VPN : Tunneling protocols used in VPN 12 PPTP -- Point-to-Point Tunneling Protocol L2TP -- Layer 2 Tunneling Protocol IPsec -- Internet Protocol Security VPN Security : VPN Security 13 Firewalls Encryption IPSec AAA Server Slide 14: 14 Firewalls: We can set firewalls to restrict the Number of open ports What type of packets is passed through And which protocols are allowed through. Encryption : Encryption 15 Encryption is the process of converting data to a secret code for transmission over an unsecured network Most computer encryption systems belong in one of two categories: Symmetric-key encryption Public-key encryption Internet Protocol Security(IPsec) : Internet Protocol Security(IPsec) 16 Internet Protocol Security (IPSec) provides enhanced security features such as better encryption algorithms and more comprehensive authentication. IPSec has two encryption modes: Tunnel Transport modes. IPsec : IPsec 17 IPSec can encrypt data between various devices, such as: Router to router Firewall to router PC to router PC to server AAA Servers : AAA Servers 18 AAA (authentication, authorization and accounting) servers are used for more secure access in a remote-access VPN environment. When a request to establish AAA then checks the following: Who you are What you are allowed to do What you actually do Slide 19: 19 A VPN may be implemented in several ways: 1. LAN-to-LAN 2. Remote user-to-LAN 3. Within an intranet Advantages: : Advantages: 20 Greater scalability. Mobility. Security. Reliability. Easy to add/remove users. Reduced long-distance telecommunications costs. Network management. Requirements of VPN : Requirements of VPN 21 VPN services need to be enabled on the server. VPN client software has to be installed on the VPN client. The server and client have to be on the same network. The server and client have to use the same: Tunneling protocols Authentication methods Encryption methods Where it is used. : Where it is used. 22 VPNs are normally implemented (deployed) by businesses or organizations rather than by individuals. Healthcare: Manufacturing: Banking/Financial: General Business: Conclusion : Conclusion 23 Thus VPN is an outgrowth of the Internet technology, which will transform the daily method of doing business faster than any other technology. Slide 24: 24 THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
VPN Presentation RanaFarhan Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 726 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: May 18, 2010 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: jagirankit8000 (15 month(s) ago) plz. send this presentation on jagirankit8000@gmail.com i want to present in my class. want to become networkadministrator in future. Saving..... Post Reply Close Saving..... Edit Comment Close By: PANDADIPAK (16 month(s) ago) IT'S BEST FOR PRIVAT NETWORK....... Saving..... Post Reply Close Saving..... Edit Comment Close By: tripathi706 (18 month(s) ago) pls, send this presentation in my e-mail id. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Group Members : Farhan Saleem – L1F07BSCS2007 Tanveer Sabir – L1F07BSCS2047 Group Members Topic : Virtual Private Network Topic Internet VPN Contents : Contents 3 Introduction How VPN works? Tunneling VPN Security Requirements of VPN Advantages Applications Conclusion Introduction : Introduction 4 Virtual Private Network is a logical connection between two or more different location over private /public network to secure private data or traffic. In VPN the messages are carried on a public network(ie: internet)using standard protocols or over a service provider’s network. Introduction : Introduction 5 A VPN makes it possible to have protected sharing of sensible data through a public network In order to perform the data transfer safely VPN uses special tunneling processes and complex encryption procedures. Slide 6: 6 How VPN works? : How VPN works? 7 A VPN works by using a shared public infrastructure while maintaining privacy through security procedures and tunneling protocols. In VPN the data are passed through a “tunnel”, in which a data which is not properly encrypted cannot be entered. Tunneling : Tunneling 8 Virtual private network technology is based on the idea of tunneling. By tunneling process only the recipient at the other end of transmission can see or access the data inside the protective encryption shell. What is Tunneling : What is Tunneling 9 Tunneling is the process of placing an entire packet within another packet and sending it over a network. Tunneling requires three different protocols: Carrier protocol - The protocol used by the network that the information is traveling over. Encapsulating protocol - The protocol that is wrapped around the original data. Passenger protocol - The original data being carried. Slide 10: 10 The truck is the carrier protocol, the box is the encapsulating protocol and the computer is the passenger protocol. Slide 11: 11 Tunneling encrypts and encapsulates our own network protocols within IP. The protocols of the outer packet is understood by the network and two end points called tunneling interface, where the packets enters and exits the network For example, you can place a packet that uses a protocol not supported on the Internet (such as NetBeui) inside an IP packet and send it safely over the Internet. Tunneling protocols used in VPN : Tunneling protocols used in VPN 12 PPTP -- Point-to-Point Tunneling Protocol L2TP -- Layer 2 Tunneling Protocol IPsec -- Internet Protocol Security VPN Security : VPN Security 13 Firewalls Encryption IPSec AAA Server Slide 14: 14 Firewalls: We can set firewalls to restrict the Number of open ports What type of packets is passed through And which protocols are allowed through. Encryption : Encryption 15 Encryption is the process of converting data to a secret code for transmission over an unsecured network Most computer encryption systems belong in one of two categories: Symmetric-key encryption Public-key encryption Internet Protocol Security(IPsec) : Internet Protocol Security(IPsec) 16 Internet Protocol Security (IPSec) provides enhanced security features such as better encryption algorithms and more comprehensive authentication. IPSec has two encryption modes: Tunnel Transport modes. IPsec : IPsec 17 IPSec can encrypt data between various devices, such as: Router to router Firewall to router PC to router PC to server AAA Servers : AAA Servers 18 AAA (authentication, authorization and accounting) servers are used for more secure access in a remote-access VPN environment. When a request to establish AAA then checks the following: Who you are What you are allowed to do What you actually do Slide 19: 19 A VPN may be implemented in several ways: 1. LAN-to-LAN 2. Remote user-to-LAN 3. Within an intranet Advantages: : Advantages: 20 Greater scalability. Mobility. Security. Reliability. Easy to add/remove users. Reduced long-distance telecommunications costs. Network management. Requirements of VPN : Requirements of VPN 21 VPN services need to be enabled on the server. VPN client software has to be installed on the VPN client. The server and client have to be on the same network. The server and client have to use the same: Tunneling protocols Authentication methods Encryption methods Where it is used. : Where it is used. 22 VPNs are normally implemented (deployed) by businesses or organizations rather than by individuals. Healthcare: Manufacturing: Banking/Financial: General Business: Conclusion : Conclusion 23 Thus VPN is an outgrowth of the Internet technology, which will transform the daily method of doing business faster than any other technology. Slide 24: 24 THANK YOU