NuFW是GPL插件,专为Netfilter(Linux下的防火墙)设计,增添了权限规则过滤器。NuFW项目包含了一些组件,具体如下:
    NuFW: identity-based filtering
    NuFirewall: ready-to-use firewall distribution
    NuFace: Netfilter/NuFW firewall management interface
    NuLog: Netfilter/NuFW log analysis interface
    NuApplet2: NuFW Agent for open-source operating system
    NuAgent: NuFW Agent for MS Windows
目前NuFW 2.4.3版发布了,该版本修复了一些bug,做了一些改变,详细如下:
 
    libnuclient: switch to next best mechanism if first one fails
    libnuclient: if auth fails with GSSAPI, retry with PLAIN
    libnuclient: avoid strlen usage at each iteration.
    libnuclient: tcp table reading optimisation
    libnuclient: fix segfault when computing hash of a deleted file
    nuauth: fix period handling
    nuauth: fix nufw counter leak
    nuauth: factorize nufw counter increase.
    nuauth: use atomic operation for nufw counter
    nuclient: add option to give SASL mech list
    nuauth: add option -q (quiet) to disable logging to stdout

工具更多信息及下载地址参见:http://www.nufw.org/