Open Source Linux VPN Software

Poptop is an open source implementation of a PPTP server. Running under x86 or embedded Motorola ColdFire architectures Poptop provides full interoperability with the Microsoft PPTP VPN client.

VTun is the easiest way to create Virtual Tunnels over TCP/IP networks with traffic shaping, compression, and encryption. It supports IP, Ethernet, PPP and other tunnel types. VTun is easily and highly configurable. VPN, Mobile IP, Shaping, etc

Endian Firewall Community (EFW) is a "turn-key" linux security distribution that makes your system a full featured security appliance with Unified Threat Management (UTM) functionalities. The software has been designed for the best usability: very easy to install, use and manage and still greatly flexible. The feature suite includes stateful packet inspection firewall, application-level proxies for various protocols (HTTP, FTP, POP3, SMTP) with antivirus support, virus and spam-filtering for email traffic (POP and SMTP), content filtering of Web traffic and a "hassle free" VPN solution (based on both OpenVPN and IPsec).

Securing your network should not require an enterprise budget. CacheGuard is a free open-source network security appliance for startups and growing businesses that need serious protection without the complexity. Install CacheGuard-OS on any x86 machine or VM and get a complete security gateway in under an hour. No plug-ins, no compatibility issues. Everything works out of the box. CacheGuard-OS is not an app, it IS the OS. A fully custom network appliance operating system built from scratch over 20 years, now fully open source. One ISO includes: firewall, VPN, web antivirus, URL filtering, SSL inspection, WAF, reverse proxy, load balancer and QoS. Free for any number of users. Optional paid support available. Source code: https://github.com/cacheguard/CacheGuard-OS Website: https://www.cacheguard.com/

Coyote Linux is a security-centric distribution of Linux designed to provide firewall, VPN, IP routing, and various other functions.

SSL-Explorer is a fully-featured, web-based SSL VPN server. This project is no longer actively maintained as the SSL-Explorer technology has now been acquired by Barracuda Networks, Inc.

A Layer 2 Tunneling Protocol VPN client/daemon for Linux and other POSIX-based OSs.

CARMA VPN is a network management program written in PERL and CGI to assist in the implementation and management of a large fully meshed, fault tollerant, VPN network. The base network platform that CARMA VPN was developed for is Cisco IOS.

This contains a sample implementation of DTLS-VPN using OpenSSL DTLSv1 Support - to send data over an encrypted channel.

Gnome2 GUI for the Cisco vpnclient.

Lomalarga is a port forwarding (VPN-like) service based on SSH & Linux. Based entirely on open source. The client is written in C# and the administration is based on Linux/lighttpd/PostgreSQL/PHP, with the UI written with Google Web Toolkit.

M0n0wall currently doesn't support IPSEC VPN where one or both ends are dynamic IP addresses. This PHP script along with the dynamic DNS service built into m0n0wall, auto-updates the remote gateway IP address in the VPN configuration.

OpenVPN 2 is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port. Discussion forums and project wiki can be found here: https://forums.openvpn.net/ https://community.openvpn.net/

A Layer 2 Tunneling Protocol VPN client/daemon for Linux and other POSIX-based OSs. "Note : Packets Analyzer can`t detect l2tp packets."

PowerVPN a GUI for VPN server. (Under development)

The SLAN project is a GPL open-source project providing a cross platform Virtual Private Networking (VPN) solution focused on providing secured and accountable links over insecure broadcast media such as 802.11 wireless LANs and public ethernets.

Extremely simple VPN designed to be used for 'pinch' situations requiring a VPN 'now', without fiddling with encryption keys, compression settings, and authentication. Not designed for permanent use.

This application providet simple VPN functionality

This tool check every x seconds your public ip adress, if it changes (vpn fall down for example) it stops one or several programs. When the VPN crash this tool can send a mail, play a sound. - This tool work on Windows and Linux. - You need to install JAVA 1,8 on your operating system - Download checkvpn.zip and unzip it - Double click on checkvpn.jar - Click on the button « Update ip » when the VPN is stopped to get your public ip address. - Type the programs separated by semicolon that you would like to stop when the vpn is falling down (ex: utorrent.exe;firefox.exe on linux just put « firefox » no extension) - Click on start button and the program will check every x seconds your ip address, if it not the vpn's ip the programs will be stopped by this tool. - The option « auto start » start the process automaticaly. - The ip adress is geolocalized via MaxMind the web site http://check.vpn.free.fr

fbtunnel is an implementation of the VPN/Tunneling protocol of the Firebrick firewall.

VpnTrustee is a multiplatform OpenVPN GUI which makes usage of OpenVPN much more easier. LEGAL NOTICE: This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)

vpnautoconnect is a daemon that allow you to reconnect automatically (at startup too) a vpn create with network manager.It can reconnect very quickly and monitor the bandwith, It works with pptp and openvpn connection.

vtrunkd - network link bonding and multichannel VPN. Vtrunkd is a Linux VPN daemon used to combine several connection paths into one aggregated channel. Features latency, reordering and jitter management, behaviour analysis optimizations for encapsulated protocols, bufferbloat control, packet redundancy, and multiple cpu cores utilization. Up to 30 heterogenous links bonding supported. Used for live streaming, LTE/3G/Wi-Fi link bonding. 32/64-bit, x86, MIPS and ARM supported. Supports python plug-ins for new algorithms implementation. Open source version developed and commercial support provided by Vrayo Systems, http://vrayo.com. No encryption supported yet.

Yavipind is a secure tunnel aka 2 peers securely forward­ing packets toward each other.It is what most people calls a VPN (virtual private network). It forwards any kind ofpacket (IPv4, IPv6 or other) sent over the virtual network interface (e.g. t

OmniEdge is an Open source p2p layer 2 , zero-config mesh VPN infrastructure, a traditional VPN, AWS VPC, Ngrok, DDNS alternative. No central server, easy to scale with less maintenance. What happens in intranet, stays in in intranet.