subject: How to secure internet actions via virtual private network vpn [print this page] How to secure internet actions via virtual private network vpn
Virtual Private Network
A virtual private network (VPN) is a computer network that uses a public telecommunication infrastructure such as the Internet to provide remote offices or individual users with secure access to their organization's network. It aims to avoid an expensive system of owned or leased lines that can be used by only one organization.
It encapsulates data transfers using a secure cryptographic method between two or more networked devices which are not on the same private network so as to keep the transferred data private from other devices on one or more intervening local or wide area networks. There are many different classifications, implementations, and uses for VPNs security
Security mechanism
Secure VPNs use cryptographic tunneling protocols to provide confidentiality by blocking intercepts and packet sniffing, allowing sender authentication to block identity spoofing, and provide message integrity by preventing message alteration.
Secure VPN protocols include the following:
private * IPsec (Internet Protocol Security) was originally developed for IPv6, which requires it. This standards-based security protocol is also widely used with IPv4. Layer 2 Tunneling Protocol frequently runs over IPsec. * Transport Layer Security (SSL/TLS) can tunnel an entire network's traffic, as it does in the OpenVPNNetwork Address Translation and firewall rules. project, or secure an individual connection. A number of vendors provide remote access VPN capabilities through SSL. An can connect from locations where IPsec runs into trouble with * Datagram Transport Layer Security (DTLS), is used in Cisco's next-generation VPN product, Cisco AnyConnect VPN, to solve the issues SSL/TLS has with tunneling over TCP. * Microsoft Point-to-Point Encryption (MPPE) works with their Point-to-Point Tunneling Protocol and in several compatible implementations on other platforms. * Microsoft introduced Secure Socket Tunneling Protocol (SSTP) in Windows Server 2008 and Windows Vista Service Pack 1. SSTP tunnels Point-to-Point Protocol (PPP) or Layer 2 Tunneling Protocol traffic through an SSL 3.0 channel. * MPVPN (Multi Path Virtual Private Network). Ragula Systems Development Company owns the registered trademark "MPVPN". * Secure Shell (SSH) VPN-- OpenSSH offers VPN tunneling to secure remote connections to a network or inter-network links. This should not be confused with port forwarding. OpenSSH server provides limited number of concurrent tunnels and the VPN feature itself does not support personal authentication.
how to
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