Kerio Personal Firewall (KPF) helps users control how their computers exchange data with other computers on the Internet or local network.
Kerio Personal Firewall is a necessity for all desktop computers connected to broadband Internet, using DSL, cable, ISDN, WiFi or satellite modems.
Within an organization, Kerio Personal Firewall prevents a single computer from attacks initiated by internal users. Remote workstations and laptops running KPF are protected from Internet born attacks.
Key Features
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Download: Kerio Personal Firewall
View: Kerio Technologies
Kerio Personal Firewall is a necessity for all desktop computers connected to broadband Internet, using DSL, cable, ISDN, WiFi or satellite modems.
Within an organization, Kerio Personal Firewall prevents a single computer from attacks initiated by internal users. Remote workstations and laptops running KPF are protected from Internet born attacks.
Key Features
- Blocks all externally originated IP traffic.
- Automatic stealth mode renders the desktop invisible to potential intruders.
- Automatically blocks all pop-up windows and banner ads.
- Detects break-in attempts by infamous hacker tools.
- Connections dialog clearly displays each application's activity at any given moment.
Change Log:
- added Italian, French and Hungarian translations
- fixed IP groups disabling
- several minor fixes in advanced packet filter editor
For home users, Kerio Personal Firewall 4 is available in two flavors - the full edition and the limited free edition. After installation, KPF works as the full edition for 30 days, after which it becomes the limited free edition. Limited free edition does not provide the content filtering capabilities such as blocking pop-up windows, ads, VB scripts, cookies, etc. and other extra features.

the one in xp sp2 is like a real firewall, its based off trend micros firewall, none the less i will not be using that feature
XoneAlarm free has (or had?) a bug that caused my system to crash under certain circumstances (e.g: when connected to eMule P2P net).
Stick with KPF v2 and you'll get the security without the bloat.
This guy obviously hasnt even looked into each product. More competent programs...how about a more competent reply
Of course security requires more than a firewall. Believe me, I use all the security measures and then some. But building them all into a firewall is NOT the solution in my book.
I like my applications simple. One small lightweight application for every task, with a simple interface (for power users and administrators, since regular users shouldn't have to bother with it).
That's what made me stick with KPF v2.
Outpost has all these useless plugins like popup blocking, content filtering and stuff that other, small, specialized applications do just as well. So what if they can be disabled - it's the principle of the thing. If a program even starts to show hints of bloatware infection, I drop it. And yes, I have used both Outpost and ZoneAlarm, but dropped them when I discovered KPF.
And as for firewalls, I wouldn't touch McAfee or Symantec. That is bloatware taken to the extremes.
As for content filtering, popups and the like, I go for Proxomitron and Firefox and some other layers of protection.
Building all the security stuff into a firewall, I think, creates clueless lusers unable to deal with the realities of computing once exposed to a production environment in which, almost certainly, a multitude of different software and hardware is used to maintain security, much of which requires an enhanced level of understanding on the part of both users and admins.
No, "all-in-one" firewalls like Outpost and ZoneAlarm (and McAfee, and Symantec) are not getting my vote. Simplicity rules.
Read ANY firewalling text book and it will tell you that you install AS LITTLE AS POSSIBLE on the firewalling box, as every extra line of code in memory is a potential bug.
Personal firewalls are somewhat different in that they will always be running along side questionable code, but I still think bloating the specific services that make up the firewall is asking for trouble. KISS.
You guys tick with KPF 2.1 till you die, no matter. Just dont try to pump that drivel down my throat about code this and bloat that. Firewalls dont get exploited through options or plug-ins, they get exploited through poor admin priviledges being applied improperly and packet inspection flaws.
KPF 2.1 is an archaic design and only contains MD5. Security is much more important then lite weight programming or simplistic designs. Use what you like, but dont delude yourself in believing just because its small and lite, it works better then the rest. KPF's core is solid but its heurisitics are old and outdated. Any simple leaktest will prove my point.
http://www.pcflank.com/art41c.htm
While leaktests arent the sole criteria to judge a firewall on, it is something to take into consideration. KPF 2.1 does quite poorly and since it isnt supported anymore, you are stuck with what you have. I run my firewall for protection, not for some stance on lite weight, simpistic designs.
3rd one down I do believe. That was hhhaaaaaaarrrdddd.
v2 is the best version, easier to use for experienced users, and without the dumbed-down interface, the erroneous rule priority system and the bloatware syndrome of KPF 3 and 4.
LINK:
Latest (hopefully not last) release of v2 is available at
Kerio's file server, though they might not want you to know that.
v2.1.4 is available as well, but had a severe bug that could compromise the firewall.
The entire release archive is available at http://eu.download.kerio.com/dwn/kpf/
WARNING: v2.1.5 and earlier sometimes resets the configuration. I'm still unsure why, but writeprotecting the config file might help though I haven't tried it yet (cumbersome, you'd have to unprotect it every time you need to make a change, then protect it again). I've only seen it occur on XP so far, Win2000 users should be fine.
thats why I stop using Kerio (s*itting) firewall
btw, that soundtimes sound so sporadic... It reset (at least to me) at least one time per day!!
i have been using mcafee and have not had one blue screen in a few weeks.
i will need to really be convinced that it's fixed before i even think about using this software again.
Why? > because it annihilate KPF or ZAP or Norton to atoms ...
It didn't log the packets I told it to log, while KPF v2 logged everything just fine.
Also, I couldn't get it to NOT ask me about unconfigured traffic, like KPF v2 does. As I have other users, non computer-literate, on my system, I prefer a firewall not to bother the user with irrelevant information. I have configured all the rules I want. All other communication should be blocked, and the user not asked about it. I couldn't get Sygate to behave that way, though I'll admit I only tested it for one night.
Besides, it's commercial. If they offered it as (even unsupported) freeware or under the GPL, I MIGHT consider it, given that they improve the logging features and lets me choose to drop any traffic not explicitly allowed, without asking the user.
Next stop, Smoothwall, I think.
I made a rule to block and log all requests to ports associated with the Blaster exploit. KPF v2 logs it just fine. Sygate, however, does not log it. So how do I know it really will block this if it won't log it (the rule says block and log, but as it doesn't log, I'm assuming it doesn't block either).
Clues appreciated...
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