m0n0wall is an embedded firewall (networking) distribution of FreeBSD, one of the Berkeley Software Distribution operating system descendants. It provides a small image which can be put on flash memory cards as well as on CDROMs and hard disks. It runs on a number of embedded platforms.

m0n0wall provides for a web-based configuration and uses PHP exclusively for the GUI and bootstrap configuration. Additionally, it adopts a single XML file for configuration parameters.

Some functions of m0n0wall are:

*Stateful packet filter firewall (networking) *IPsec and PPTP VPNs *Inbound and Outbound Network Address Translation *Captive portal *Traffic shaping *Replacement for commercial Router

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