期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2012
卷号：3
期号：2
页码：3726-3732
出版社：TechScience Publications
摘要：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. IPSEC Tunneling protocol is used for transporting encrypted data over a public network. An efficient firewall is designed to allow or deny applications and network users and thus protect the VPN network from unauthorized users. This firewall protection is based on IPTABLES which is coded by us and managed through LINUX kernel. This design of secure VPN is more comfortable for transmitting the data in more reliable and secure way by using the above said protocols and protects data from external threats.e abiIpsec,Iptables,ssh,ssl,firewall,vpncle.l
