Thereso Firewall is an open source firewall- and networking operating system running on embedded systems. It is based on Debian GNU/Linux and optionally provides network services, like:

• Port- and protocol filter, stateful packetfilter
• Dynamic Host Configuration Protocol (DHCP) Server
• Domain Name System (DNS), DNSSEC, fast resolver
• Static and dynamic IP Routing
• Firewall and Network Address Translation (NAT)
• Virtual Private Networks (VPN), Generic Routing Encapsulation (GRE), OpenVPN, WireGuard, IPsec

Thereso Monitoring is an open source monitoring solution. It is based on the Icinga stack, containing:

• Infrastructure Monitoring, active and passive monitoring of availability, performance
• Metrics and logs Server
• Analytics
• Notifications