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ExpressVPN is a VPN service which offers privacy and security software that encrypts users' web traffic and masks their IP addresses. It is offered by a Hong Kong-based company registered in the British Virgin Islands as Express Technologies Ltd.
Proton VPN can also be installed on a Wireless Router. Proton VPN utilizes OpenVPN (UDP/TCP), IKEv2, and WireGuard protocols with AES-256 encryption. On October 11, 2022, Proton VPN released their Stealth Protocol for Android, iOS and MacOS clients
其他人也問了
What is a virtual private network (VPN)?
What is VPN blocking?
How secure is a VPN?
What is a VPN device?
Virtual private network. A virtual private network ( VPN) is a mechanism for creating a secure connection between a computing device and a computer network, or between two networks, using an insecure communication medium such as the public Internet. [1]
A virtual IP address (VIP or VIPA) is an IP address that does not correspond to a physical network interface. Uses for VIPs include network address translation (especially, one-to-many NAT), fault-tolerance, and mobility.
Blocking VPN access can be done a few different ways. Ports that are used by common VPN tunneling protocols, such as PPTP or L2TP, to establish their connections and transfer data can be closed by system administrators to prevent their use on certain networks. Similarly, a service can prohibit access by blocking access from IP ...
The Point-to-Point Tunneling Protocol ( PPTP) is an obsolete method for implementing virtual private networks. PPTP has many well known security issues. PPTP uses a TCP control channel and a Generic Routing Encapsulation tunnel to encapsulate PPP packets. Many modern VPNs use various forms of UDP for this same functionality.
An Internet Protocol address ( IP address) is a numerical label such as 192.0.2.1 that is assigned to a device connected to a computer network that uses the Internet Protocol for communication. [1] [2] IP addresses serve two main functions: network interface identification, and location addressing .