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Open Source Firewall

  1. Open Source Firewall
    A firewall is one of the tools used to secure a computer network. A firewall can prevent unwanted access to departmental systems while preventing local systems from attacking systems on other networks (on the other side of the firewall). Firewalls require on-going monitoring in order to ensure that they do not unnecessarily restrict access to important computer resources while preventing unwanted access and to ensure that the firewall is operating as expected. Firewall logs should also be reviewed regularly in order to evaluate traffic patterns including denied connections. Installing and operating a firewall to protect a departmental LAN is only one of many criteria that Network Administrators need to consider when determining the security requirements of their environment. A complete security assessment will help identify other areas of vulnerability. 
                                                                                    
  2. Filseclab Personal Firewall Professional Edition
    Filseclab Personal Firewall Professional Edition is one of the most important software of Filseclab, it is very easy to use and also very powerful. It can provide more secure protection for your PC, and it is FREE.
    * It can block the most attacks from worm viruses and trojans.
    * It can block some main Adware and Spyware, the definition supports live update and you may also define it yourself.
    * Double filter system provides double-layer protection.
    * Digital signature verification can automatically trust the well-known program.
    * Built-in 7 big modes can apply for all kinds of requirements.
                                                                              
  3. Creating an open source firewall
    With ever-present threats from online attackers and script kiddies, administrators need a firewall on the border of any network. A Linux box can make a particularly effective and capable firewall at a fraction of the cost of a Cisco or Check Point system. The most obvious use for a firewall is to block unwanted traffic from entering or leaving a network. Firewalls can also make specific connections from outside hosts to internal systems, such as a mail or Web server, either behind the firewall or on a trusted or "de-militarized zone" (DMZ) segment. Almost every version of the 2.x series of the Linux kernel has a different firewall implementation, with 2.0 using ipfwadm, 2.2 using ipchains, and 2.4 implementing netfilter. 2.6 continues to use netfilter, as it is essentially a plug-in framework within the network subsystem for whichever firewall implementation we choose to use. 2.4 and 2.6 support both ipfwadm and ipchains through backports of the systems to netfilter.
                                                     
  4. Open Source Firewall for Windows
    If you decide to develop a Firewall for Linux, you will find a lot of information and source code, all free. However the people interested in Firewall for Windows Platforms have a little more difficult not only for find information, find free source code is a task impossible. Of course you can find some great sample implementation on codeproject.com developed by Jesús O. NetDefender is a Free Firewall with source code, which can be downloaded along with firewall executables. Netdefender works only on windows 2000 and above versions of windows. Features :
    1. User can Block all Traffic and can Allow all traffic through just one mouse click
    2. It is a packet filtering Firewall.
    3. User can add custom rules to this firewall as per their security requirements.

  5. Open Source Web Application Firewall
    ModSecurityTM is an open source intrusion detection and prevention engine for web applications (or a web application firewall). Operating as an Apache Web server module or standalone, the purpose of ModSecurity is to increase web application security, protecting web applications from known and unknown attacks. (IN)SECURE Magazine is a freely available digital security magazine discussing some of the hottest information security topics. It can be distributed only in the form of the original non-modified PDF document. he covered topics are:
    * SSH port forwarding: security from two perspectives,
    part one
    * An inside job
    * CEO spotlight: Q&A with Patricia Sueltz, SurfControl
    * Server monitoring with munin and monit
                                       
  6. Open Source Firewall software
    The Seattle firewall is an ipchains based firewall that can be used on a dedicated masquerading firewall machine (including LRP), a multi-function masquerade gateway/server or on a standalone Linux system. Features:
    * Customizable using configuration files and with explicit ipchains rules without modifying the released Seattle Firewall scripts.
    * Support for status monitoring with an audible alarm when an "interesting" packet is detected.
    * Support for VPN via ipip tunnels, IPSec and PPTP.
    * Support for masqueraded PPTP servers, including PoPToP.
    * Support for masqueraded servers (requires ipmasqadm).
    * Support for running PoPToP on a Linux gateway/firewall. 
                                                                                           
  7. Leading Open Source firewall developers
    Richard Morrell and Lawrence Manning, co-authors of the Smooth Wall Open Source firewall project, have joined Slash CO Limited, the UK Open Source services and information provider. Richard and Lawrence will continue to work on a number of Open Source projects, including .Richard Morrell and Lawrence Manning, co-authors of the Smooth Wall Open Source firewall project, have joined SlashTCO Limited, the UK Open Source services and information provider. Richard and Lawrence will continue to work on a number of Open Source projects, including the Smooth Wall Firewall, where Richard is the Project Manager and Lawrence the Chief Designer/Programmer. Smooth Wall has been phenomenally successful, with over 265,000 worldwide downloads in the five months since first release. Smooth Wall has featured in traditional press and online media since its launch with over 300,000 copies having been distributed via Windows and Linux magazines all over the globe.
                                                                  
  8. Open Source Firewall Appliance
    Like millions of people, I enjoy the convenience of fast and cheap bandwidth that modern cable modems provide. Unfortunately, a fast permanent connection makes you immediately a valuable target for countless port scan and brute force attacks, a lot of those recently originating from China, Taiwan and Korea. Over the years, I went thru several firewall appliances in search for the perfect gear. I had been relatively happy with the Netgear FVS318. However, it was one of the first generation model, and the processor speed left something to be desired. It also lacked the ability to create custom firewall rules, which is paramount if you want to expose services with a fine grain control on who gets in.

                                                                        
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Current Comments

26 comments so far (post your own) View All Comments Latest 10 Comments:

I need project firewall in java so pleeeeeaaaase give me source code of it...

Posted by Kavitha K on Friday, 10.1.10 @ 11:34am | #99984

i need firewall project coding in java .

Posted by Anija on Friday, 09.24.10 @ 11:06am | #99832

i want to create a Firewall using JAVA.can u please help me by sending free code along with data flow diagrams

Posted by Ankit on Saturday, 08.14.10 @ 13:00pm | #98918

plz if anyone have sourcecode of firewall, plz send me at girijeshcool@gmail.com
its very urgent.

Posted by Girijesh on Tuesday, 05.4.10 @ 18:24pm | #96813

please its hurry!

Posted by sudhir on Tuesday, 04.13.10 @ 09:14am | #96328

i want to block perticular ip frmo my system

Posted by ravi on Thursday, 02.11.10 @ 09:33am | #94758

implementation of firewall in .net

Posted by asthagoyal on Monday, 01.11.10 @ 17:36pm | #93951

source code and dfd for firewall development in java

Posted by Venkayya Naidu.T on Monday, 01.11.10 @ 11:59am | #93938

i hve to make project on firewall.Will u plz give me source code of firewall?

Posted by asthagoyal on Saturday, 01.9.10 @ 18:40pm | #93914

i hve to make project on firewall.Will u plz give me source code of firewall?

Posted by asthagoyal on Saturday, 01.9.10 @ 18:39pm | #93913

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