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VTun VPN
VTun is a virtual tunneling software that creates encrypted and unencrypted VPN tunnels between remote systems, facilitating secure communication. It is primarily used to build secure private networks over the internet, leveraging techniques like tunneling and optional encryption to provide confidentiality, authentication, and data integrity. Though flexible and configurable, its default operation on port 5000 supports various link options including Ethernet and IP-level virtual links..
VTun is an open-source VPN software package designed to create secure, encrypted tunnels between remote hosts over untrusted networks. It supports both Layer 2 (Ethernet bridging) and Layer 3 (IP routing) modes, allowing different networking configurations suited for secure data transfer, private networking, or remote management. VTun utilizes a client-server architecture where the server listens on port 5000 by default, enabling multiple clients to create independent secure tunnels simultaneously.
The software supports various transport protocols, including TCP and UDP, and provides optional data encryption and compression to enhance privacy and reduce bandwidth usage. VTun can encapsulate different types of virtual point-to-point links on top of existing network infrastructure, making it versatile for creating site-to-site VPNs, roaming access connections, or transparent bridging across dispersed network segments. Configuration is typically managed through vtund.conf files, specifying authentication methods, link modes, and encryption settings.
Despite being less popular in recent years due to modern VPN solutions like OpenVPN and WireGuard, VTun remains a flexible option for custom tunneling needs. It is often found in embedded systems, experimental environments, or legacy deployments. Because port 5000 is unofficially assigned, usage may overlap with other services, necessitating careful port management and configuration.