TESS serves as a simple local network to allow a trainer to work with services such as email, Jabber, a web server, in places where the internet is not functioning or electricity is weak.
TESS is built using a RaspberryPi with the Raspbian Debian distribution in addition to the following components:
- DNSMasq: DHCP and DNS
- Prosody: XMPP (Jabber)
- Postfix: SMTP
- Dovecot: IMAP
- Apache: HTTP
- iptables: firewall