Towalink: An open and flexible site networking solution

Securely and reliably connecting multiple operating sites using existing Internet access lines is a common requirement for companies as well as individuals. Towalink is a new open and flexible solution for interconnecting multiple network sites reliably and securely. It is built around proven open-source projects and by itself published open-source. We present in theory and based on a practical setup the central management it provides and show how it is following the infrastructure-as-code paradigm.