This guide installs Debian 9.5 on VMWare using a virtual network bridge and NAT within iptables to isolate the virtual machine from connecting to other machines on local network, while still allowing outside connectivity. Only udp DNS requests are allowed from virtual machine to local network.
This guide sets up a contact form with reCAPTCHA which submits to Google Forms and through Google Sheets and Google Apps Scripts, e-mails the contents of the form to a specified e-mail address. No backend code is necessary; works on Github Pages, Google Sites, etc.
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