shortwire

minimal yet working VPN(virtual private network) daemon for Linux

Features

establishes P2P connection between two computers
creates a virtual NIC and allows any applications(ssh,nfs,http-server,...) to transparently use P2P connection
packets are encrypted of course

Install

dependencies

libwebsockets

build

# clone this repository
git clone --recursive https://github.com/mojyack/shortwire
cd shortwire
# build
meson setup build -Dbuildtype=release
ninja -C build

Usage

generate encryption key

key length must be 16 bytes.
dd if=/dev/random of=key.bin bs=16 count=1
place the same key on the server and client side.

start server

work on server side:

USER=username   # anything that doesn't conflict with others
PEER_LINKER=ec2-15-168-12-186.ap-northeast-3.compute.amazonaws.com # my test server

sudo modprobe tun
while true; do
sudo build/shortwired \
    --username $USER \
    --peer-linker-addr $PEER_LINKER \
    --peer-linker-cert var/user-cert.txt \
    --key key.bin \
    --server
sleep 5
done

if all goes well, a NIC named tunN with address 192.168.2.1 should appear.

start client

work on client side:

sudo modprobe tun
while true; do
sudo build/shortwired \
    --username $USER \
    --peer-linker-addr $PEER_LINKER \
    --peer-linker-cert var/user-cert.txt \
    --key key.bin \
sleep 5
done

if all goes well, a NIC named tunN with address 192.168.2.2 should appear.

test

try ping 192.168.2.2 on the server side or ping 192.168.2.1 on the client side

parweb/shortwire