Security

An Efficient Approach to Secure VPN Based on Firewall Using IPSec & IPtables

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Executive Summary

Virtual Private Network is used to establish discrete network connection within a network. The traditional VPN has many limitations regarding the security issues. To overcome this, the secure VPN methodology is proposed which provide confidentiality, sender authentication and message integrity etc. In this proposed mechanism, the VPN network is established using SSL, SSH and IPSEC Tunneling protocols to provide efficient data transmission. SSL is designed to make use of TCP to provide reliable end to end secure service. The SSH will authenticate the remote login and allow it if necessary.

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