Fw­builder was one of three GTK ap­pli­ca­tions I used (inkscape and gimp are the oth­er two).

And to­day I no­ticed that ver­sion 2 is Qt-based :-)

I like it a lot. In fac­t, as I say in my class­es, it's the first fire­wall con­fig­u­ra­tion ap­pli­ca­tion for Lin­ux I've found that is ac­tu­al­ly eas­i­er than edit­ing a scrip­t, since al­most ev­ery oth­er one I've found is a glo­ri­fied rule ed­i­tor.

Bonus cool ap­pli­ca­tion: p3s­can

I found about this to­day, when a cus­tomer asked me for a way to vir­us­can his in­com­ing mail. Which is stored in a bunch of ac­counts all over the in­ter­net :-)

For web­mail­s, a squid redi­rec­tor does the job, but for pop3? p3s­can is com­plete­ly trans­par­ent (on­ly re­quires a tiny con­fig­u­ra­tion and a NAT rule) and for what I test­ed it, works just fine.

I am us­ing it along with cla­mav, but it al­so sup­ports Kasper­sky, F-Pro­t, and al­most any­thing, re­al­ly.

Cool gad­get, and it's just a 72KB down­load.