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Grex Micros Item 264: WIPFW - A superb windows firewall that is FREE!
Entered by vivekm1234 on Mon Sep 4 12:08:35 UTC 2006:

 Hey! How come we don't have a #Windows channel on the bbs! Anyway, hope my
 posting here is excused since it may save you big bucks!

 I've found a super-duper firewall for windows called WIPFW; check out:
 "http://wipfw.sourceforge.net/". It's based IPFW1 which is the FreeBSD OS
 firewall. This was recommended by someone on USENET some time back. I had
been
 too lazy to bother with it because Sygate (a commercial firewall), worked
 reasonably well and was easy to configure and you could backup rules and had
 a neat and simple interface. Today that rotten thing f'd up big time and i
 had to re-install 2K from backups. Obviously i was not too pleased about
this!
 I decided to try out WIPFW. I just extracted the whole thing to C:\Program
 Files\ and copied the examples\ppp.txt into \rc.fw. I then edited it just
a
 wee bit and it's now working great!

 My needs are simple and i haven't tried NAT and FTP-NAT and other weird
stuff.
 I want to allow incomming on port 25/35/45 for my P2P apps and i want to
block
 everything else (incomming connections, virus's, etc) and this does all of
 it! It pops up nothing (thank the Lord!) and it does not pollute my screen
 with idiotic icons. It's completely configured via a single file and has a
DOS
 cmd line interface!

 It's free! err..legally free..:) Anyway, you may want to bear it in mind the
 next time you think of a nice firewall for Windows :). I'll be glad to help
 config it; perhaps someone could point me to the appropriate forum..

 Basically all i did was:
 ipfw enum [Tells me what interfaces i have; eth0, eth1, ppp0 etc]
 Then edit \rc.fw and set oif,iif [ outside interface, inside interface]
 and changed:

 $fwcmd add allow tcp from any to me 25,35,45 in via $oif setup keep-state
 $fwcmd add allow udp from any to me 25,35,45 in via $oif keep-state

 basically put what ports i wanted (25,35,45) the rest of the line remained
the same.
 ANd i was done! Wooo!

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