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- Content .- Fans  .- Knowledge Base  . 



KDE Security

Score 80%



Link:  Link
Minimum required   KDE 3.3.x
Downloads:  17747
Submitted:  Jan 12 2004
Updated:  Jan 31 2008


KMyFirewall attempts to make it easier to setup IPTables based firewalls on Linux systems.
It will be the right tool if you like to have a so called "Personal Firewall" running on your Linux box, but don't have the time and/or the interest to spend hours in front of the IPTables manual just to setup a Firewall that keeps the "bad" people out.


Donatas Glodenis provides KMyFirewall 1.1.1 and patched kdesudo packages for Ubuntu/Kubuntu at http://dg.lapas.info/share/paketai/ubuntu-gutsy/

thanks for his support!


As reported by Donatas Gloden the installation process in version 1.1.0 is seriously broken - IT DOES NOT INSTALL A VALID SCRIPT!

So please Update to v1.1.1 that i've just released on sf.net if you are using 1.1.0!


With great thanks to Donatas Glodenis here is a much better fix solving the "kdesu -t issue". Here are the instructions form his email:

The kdesudo version 2.1, available for the coming version of Ubuntu Hardy
Heron (8.4), already has the -t option implemented. You can build your own
kdesudo package for gutsy by following these steps:

1. Download these packages from the repositories:
$ wget http://archive.ubuntu.com/ubuntu/pool/main/k/kdesudo/kdesudo_2.1-0ubuntu1.dsc
$ wget
$ wget

2. setup sources:
$ dpkg-source -x kdesudo_2.1-0ubuntu1.dsc

3. Build package:
$ cd kdesudo-2.1/
$ sudo apt-get build-dep kdesudo
$ dpkg-buildpackage -rfakeroot -uc -b

4. Install package
$ cd ../
$ sudo dpkg -i kdesudo*.deb

Here is the apt-get source for KMyFirewall and the patched KDEsudo




Release of KMyFirewall 1.1.0

Well, it has been a while since the last release, almost 2 years ;)

Sorry for the slow progress until now, but i hope the new KMyFirewall 1.1.0 release will excuse the long waiting.

This release includes lots of cool new features (e.g. multi target configuration, remote installation etc.) and fixes all known bugs. Again the document format has changed a bit but i did my best to make it compatible with rule sets created using v1.0.x

Multi Target Configuration & Remote firewall control

With KMyFirewall 1.1.0 you are now able to define so called Targets (accessible in the MyNetwork View), those are the computers you like to manage using KMyFirewall.
After configuring a target (IP address and SSH port) you simply set it as the "Active Target" and edit it's rule set as you did for localhost. The only requirement is that the target allows SSH connections and has a bash shell installed.
With the help of KDE's KIO technology you can install, run, show configuration etc. on the remote host, as you did on localhost before.
All communication between KMyFirewall and the target is encrypted using SSH.

New Undo/Redo Engine

As consequence to the lots of trouble the current undo/redo implementation has made, i re-designed it and as result the engine is faster, more reliable and much easier to use as a developer.

Custom Protocols (Generic Interface)

This solves on of the most annoying problems of the Generic Interface. In KMyFirewall's settings dialog you now can define your own protocols.
So if you find any important protocol still missing, simply create it and if you like send it to chubinger_AT_irrsinnig_DOT_org so that i can add it for the next release. (For the future i plan to implement a KHotNewStuff service to allow online updates of the protocol library.)

Improved Auto Configuration

The auto configuration capabilities have been moved to a small bash script and therefore can also be used for remote targets. If your system is not detected correctly please send your configuration to chubinger_AT_irrsinnig_DOT_org so that i can add them to the auto configuration script.

So finally i just like to say have fun managing your firewalls using KMyFirewall 1.1.0
Feedback and burg reports are very welcome.



Release of KMyFirewall 1.0.1

* Adding some more protocols to the Protocol library
* Fix spelling bug in Workstation template
* Small code cleanup
* Deleted old Parser and Wizrad files
* Fix rule index handling
* Allow insert of rules.
* Fix Rule renamed canceled bug
* cleanup interface add parameter to select the config part to show insted of different methods
* Add posibilty to export a package containing the scripts needed to install the ruleset on the system
* Add commandline parameter to define the GUI interface to startup with
* Fix chain log prefix saving bug
* Fix multiport ruleoption bug


Release of KMyFirewall 1.0

Important: As the file format used to save the rulesets has changed, rulesets created with KMyFirewall < 1.0beta1 WILL NOT work, don't even try it!

Since the last stable release KMF has been completely rewritten in order to be even more flexible and on the other hand easier to use.

New plugin framework

Most parts of the application has been rewritten introducing a plugin framework that allows to add new IPTables rule option editors to be written within a few hours (well maybe days depends on the options complexity :).
This will allow us (and contributors) to easily implement the fast growing number of IPTables ruleoptions without the need of understanding the whole application.

The backend generating the IPTables rules itself has been extended to allow the registration of new rule options by defining them in an XML description file. For a detailed description about how to write such plugins have a look at the application handbook in the current CVS version.
So feel free to contribute plugins, there are lots of options still not implemented.

New Easy-To-Use platform independent interface

As I often got mails complaining about the to complex nature of KMF and the very limited possibilities the wizard provides i simply removed the wizard and implemented a completely new interface.

Features of the new Interface

As the new interface works on an abstract descrioption of the generated rules the new plugin structure allows us top implement script compilers that support other firewalling backends than just netfilter/iptables.

To support a new tool kit it is required to write a compiler and an installer plugin for the new framework. Currently just the iptables/linux compiler and installer is implemented. As with the rule option plugins of the IPTables interface it shouldn't bee too much work to develop those plugins.

IPTables vs. Generic interface

The main difference between those two interfaces is that the new Generic Interface is OS and toolkit independant while the IPTables interface is an improved version of the well known KMF GUI and therefore tight bound to the netfiler/iptables toolkit and can therefore only be used with Linux as operating system.

Why two different interfaces?

Especially when concerning security related applications you (as developer) need to decide if you like to build an application used by expert users (e.g. experienced system administrators) or if you like to provide a tool that everybody can handle.

It hasn't been an easy decision to implement one interface for each user group but after pondering about concepts to merge those two requirements into one interface we decided that it is much better to separate them.
This allows us to concentrate on the wishes and wanted features for each of the user groups.


Homepage Update

Some developer documentation has been added. Have a look ath the "Documentation" section to see whats new.


Uploaded Suse 9.2 rpms.
Thanks to Marcus for contributing those.

APT users may install from the following repository:

ftp://ftp.gwdg.de/pub/linux/suse/apt SuSE/9.2-i386 suser-tux


Updating links to www.rockersoft.org Fedora Core 1/2 rpms.
They should also work for FC3


Adding debian testing/ustable package contributed by Raphael Lechner


New homepage online!

I'm very happy to announce the availability of the new fresh designed KMyFirewall homepage.
The design and implementation was done by Anton Frennevi who also designed a new icon set for KMF.
Unfortuantely he won't have anymore time to work with us so a big thank you very much to him.

--- ->
Fixed rule creation bug in Wizard
Made adding of other devvice types then the defaults possible
Several small fixes


Rockersoft made packages for Fedora Core 1 available via their download server at:

Those packages are also available via an apt-get repository at:

Thanks a lot to the guys at Rockerssoft:

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 by xcallejas on: Feb 22 2004
Score 50%

can this produce rules to implement NAT and its specials issues?

Reply to this


 Re: NAT?

 by theanimal666 on: Feb 25 2004
Score 50%

Yes - the basic nat stuff is implemeted in the GUI and everything else may be done by using a "Costom Rule Option" which gives you full controll over the generated iptables rule.


If it compiles, commit to CVS.
If it links, ship to customer.
It it runs without bugs, ..., nah, never had that case.

Reply to this


 Intrusion report

 by mtadeunet on: Aug 9 2004
Score 50%

Is it able to report intrusion attempts? I'm trying to find some software that reports or presents intrusion alerts.


Reply to this


 Re: Intrusion report

 by theanimal666 on: Sep 8 2004
Score 50%

No - this is not implemented, to be honest not even planed.
I'm not shure but somewhere on sourceforge i saw a project that ties to do that.


If it compiles, commit to CVS.
If it links, ship to customer.
It it runs without bugs, ..., nah, never had that case.

Reply to this


 Re: Re: Intrusion re

 by janosdre on: Nov 9 2005
Score 50%

What you are probably looking for is Snort at snort.org

It is probably the best IDS/IPS and it is open source. A grate site for snort related things is www.bleedingsnort.com

Reply to this



 by philr on: Aug 22 2004
Score 50%

Hi... this is a great tool. trying to use iptables from a command line was a nightmare for me, so a nice GUI is much appreciated.

So far the only things wrong I've found are spelling mistakes :-) Oh and it assumed runlevel 5 when I was on runlevel 3 but that's hardly an issue.

Keep up the good work, this is a great tool for firewall newbies.


Reply to this


 BIG Missing feature.

 by olahaye74 on: Mar 17 2005
Score 50%

I'd like to use KMyFirewall to maintain all the iptables I've created in my company systems.

Unfortunately, I did not find any options to edit current iptables...

Why not letting the user load the current table with:
iptables-save -c

Or did I missed something?

Olivier LAHAYE

Reply to this


 Re: BIG Missing feat

 by theanimal666 on: Mar 18 2005
Score 50%


Well surely it's possible to implement such a thing for the IPTables mode (for the Generic interface this would be very difficult to do), but my time is currently much too limited to write the needed parser for that.

So i do not think i will implement this in the near future as there are lots of other things i need to do first. But surely will i integrate this into the app if anyone writes such a parser/converter.


If it compiles, commit to CVS.
If it links, ship to customer.
It it runs without bugs, ..., nah, never had that case.

Reply to this


 KDE HIG? :-)

 by macavity on: Apr 19 2005
Score 50%

First: I haven't used this yet; I just looked at the screenies, so feel free to ignore me :-)

Seccond: It looks like it does the trick really well.

Third: This app would really really benefit from following the new GUI guidelines! Have you considerd to rework the GUI of the main window?
I can see that the Configure part is done *spot on*, but its the left side of the main window that looks oldish/klunky/scary ;-)

I suggest: More space around things. Use check-boxes where possible. Perhaps two tabs? One for general opts, and one for pr-rule-editing. Etc? :-) Oh yes.. And more space around things ;-)

Personally I think it looks like this app has the functionality it takes to get it into kde-network, which would be a good thing! KDE needs a good firewall-front-end....

Yours Macavity

Reply to this


 Re: KDE HIG? :-)

 by theanimal666 on: Apr 21 2005
Score 50%

Well i know the GUI (i think you are talking about the IPTables interface) is not as clean as it may be.

The problem is that i need lots of elements per screen (especiaslly the protocol option stuff is really bloaded). I'll try to do my best to make it better.


If it compiles, commit to CVS.
If it links, ship to customer.
It it runs without bugs, ..., nah, never had that case.

Reply to this



 by Shelton on: Sep 19 2005
Score 50%

When trying to execute firewall from mwnu item:

Error: kdesu: Unknown option '-i'.
Error: kdesu: Use --help to get a list of available command line options.

Execution failed
Exit(Code): 254

Trying to run this:

Are you sure you want to execute the generated iptables script?
A wrongly configured iptables script may make your computer unusable!
If your system hangs after you start the firewall, switch to a text console (Ctrl+Alt+F1) and run the following commands to reset your iptables configuration:
iptables -F
iptables -X
iptables -P INPUT ACCEPT
iptables -t nat -F
iptables -t nat -X
iptables -t nat -P OUTPUT ACCEPT
iptables -t nat -P PREROUTING ACCEPT
iptables -t nat -P POSTROUTING ACCEPT
iptables -t mangle -F
iptables -t mangle -X
iptables -t mangle -P INPUT ACCEPT
iptables -t mangle -P OUTPUT ACCEPT
iptables -t mangle -P FORWARD ACCEPT
iptables -t mangle -P PREROUTING ACCEPT
iptables -t mangle -P POSTROUTING ACCEPT

I am on Mandriva 10.1 Official.


Reply to this


 Re: Error

 by mattepiu on: Jan 25 2006
Score 50%

try to edit the menu-entry: put in
kmyfirewall as if you want to run as
normal user, then check "run as another
user" and leave blank the field of the
user (it goes to root automatically)...

Reply to this


 Re: Re: Error

 by sede on: Nov 14 2007
Score 50%

Same problem here with kdesu -t.
Cannot test or activate the firewall, even as root.

Reply to this


 Re: Re: Re: Error

 by theanimal666 on: Jan 10 2008
Score 50%


Well the -t option somehow dissapeared from kdes somwhen between 3.5 and 3.5.8 - i've no idea why...

If it compiles, commit to SVN.
If it links, ship to customer.
It it runs without bugs, ..., nah, never had that case.

Reply to this

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