m0n0wall计划的目标是创建一份完整的、内置的防火墙软件包，当它配合PC使用时，能够提供商用防火墙机器的所有重要功能（连同易用性在内），而其价钱却只是后者的一小部分（因为m0n0wall是自由软件）。m0n0wall基于FreeBSD的一个精简版本，并带有一个web服务器（thttpd）、PHP以及其他一些实用工具。整套系统配置存储于单个的XML文本文件以对系统透明。m0n0wall很可能是首个拥有用PHP实现的启动配置的UNIX系统，而通常这是依靠shell脚本的，此外，它把整个系统配置都用XML格式存储。

 
Manuel Kasper has announced the release of m0n0wall 1.234, a minimalist firewall distribution based on FreeBSD: "I've decided to create one more release in the 1.2x stable branch to add source port randomization (for both NAT and the DNS forwarder). This is a recommended upgrade for all 1.2x users, no matter whether you're running a DNS server behind m0n0wall with NAT or not. Changelog: added source port randomization for ipnat; updated Dnsmasq to 2.45 (source port randomization); updated PHP to 4.4.9; bumped MFS size for firmware upgrades to 10 MB; changed ZoneEdit update server name to dynamic.zoneedit.com." Read the release announcement and changelog for further information. Download (MD5): cdrom-1.234.iso (5.78MB).

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