Freesco has been discontinued. Similar apps include OPNsense, which is free and open source. Other options are IPFire, Endian Firewall Community and Rusroute. In total there are four Firewalls like Freesco for Linux, self-hosting and Windows.
OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.
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IPFire is a server distribution with intended to use as a firewall. It focuses on flexibility, and scales from small to middle sized business networks and home networks.
Endian Firewall Community (EFW) is a "turn-key" linux security distribution that turns every system into a full featured security appliance with Unified Threat Management (UTM) functionality. The software has been designed with "usability in mind" and is very...
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RusRoute is a router and firewall, Internet gateway for Windows, it is the ideal solution for making Internet gateway for local area network (LAN) of any firm, the users' traffic encountering and restricting, protection against of network attacks with functions of NAT...
