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govpn

A Simple VPN Built In Golang

forthebadge

Installation

$ git clone https://github.com/shinvdu/simplevpn.git

Usage:

Usage of ./main:
  -S    server mode
  -c string
        vpn interface CIDR (default "172.16.0.1/24")
  -k string
        encryption key (default "S#Q#FBSDAE#%!@#!@#%!NDADSA")
  -p string
        protocol udp (default "udp")
  -l string
        local address (default "0.0.0.0:3000")
  -s string
        server address (default "0.0.0.0:3001")        

Build:

$ bash scripts/build.sh

Server:

sudo ./bin/govpn-linux-amd64 -S -l=:3001 -c=172.16.0.1/24 -k=123456 

Client:

sudo ./bin/govpn-linux-amd64 -l=:3000 -s=192.168.2.94:3001 -c=172.16.0.10/24 -k=123456

Server Setup:

  • Enable IP forwarding on server
  sudo echo 1 > /proc/sys/net/ipv4/ip_forward
  sudo sysctl -p
  sudo iptables -t nat -A POSTROUTING -s 172.16.0.0/24 -o ens3 -j MASQUERADE
  sudo apt-get install iptables-persistent
  sudo iptables-save > /etc/iptables/rules.v4

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A Simple VPN Built In Golang for learning purpose

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