Tinc

Tinc is a Virtual Private Network (VPN) daemon that uses tunneling and encryption to create a secure private network between hosts on the Internet.

And is used in XPUB to create the HUB VPN - an electronic learning enviroment, server playground, web publishing platform, consisting of local machines (mainly raspberry pi's) that sit behind firewalls, but through Tinc are accessible from outside the firewall.

To add a machine to the HUB, we install Tinc from source. This is because it is required to have all the machines running the same version of Tinc.

Install Tinc Client

On RaspberryPi / machine that will be joining HUB.

Install dependencies:

sudo apt install build-essential automake libssl-dev liblzo2-dev libbz2-dev zlib1g-dev libncurses5-dev libreadline-dev 

Compile Tinc 1.1pre:

cd ~

wget https://www.tinc-vpn.org/packages/tinc-1.1pre18.tar.gz

tar xvf tinc-1.1pre18.tar.gz

cd tinc-1.1pre18

./configure

make

 sudo make install

Once installed create configuration dir:

sudo mkdir -p /usr/local/etc/tinc/

And tinc is installed in

/usr/local/sbin/tinc

Next steps

Follow XPUB_HUB_New_Nodes.