A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy.
Welcome to CWAnswers
CWAnswers is your guide to the sprawling world wide web. The directory aims to provide a useful guide made by users. You can share your knowledge as well - simply sign up and edit your first entry. For questions just contact the team at support - at - cwanswers.com.
Weblinks for Personal Firewall
Top 10 for Personal Firewall
Things about Personal Firewall you find nowhere else.
Select content modules
Schneier on Security: RFID Personal Firewall
But with an RFID firewall, it might be possible to reap the benefits of RFID ... Posted on December 11, 2006 at 6:20 AM • 35 Comments • View Blog Reactions ...www.schneier.com/blog/archives/2006/12/rfid_personal_f.htmlThe Best Personal Firewall Online Armor
Scot's Newsletter is Finnie's personal blog and newsletter. ... Welcome to the Online Armor Blog. Online Armor Awarded Best Firewall Software of 200...www.onlinearmorpersonalfirewall.blogspot.com/Lavasoft Personal Firewall 3.0 - Lavasoft
Lavasoft Blog. Careers. News & Events. Mailing Lists. Contact Us. Special Offers. Partner Offers ... Lavasoft Personal Firewall 3.0 provides the critical ...www.lavasoft.de/software/firewall/Verizon Business Security Blog " personal firewall
In a recent blog post at ZDNet, Jason O'Grady mentioned the benefits of running ... Mac security, OS X, personal firewall, risk, RSPlug, Safari, security, Threat, ...securityblog.verizonbusiness.com/tag/personal-firewall/Sunbelt Blog: We liked the product so much, we bought it
... news on the Sunbelt Software Blog. The Sunbelt Blog is your source for Internet ... The Kerio Personal Firewall will be re-branded on an interim basis as the " ...sunbeltblog.blogspot.com/2005/12/we-liked-product-so-much-we...A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy.
A personal firewall differs from a conventional firewall in terms of scale. Personal firewalls are typically designed for use by end-users. As a result, a personal firewall will usually protect only the computer on which it is installed.
Many personal firewalls are able to control network traffic by prompting the user each time a connection is attempted and adapting security policy accordingly. Personal firewalls may also provide some level of intrusion detection, allowing the software to terminate or block connectivity where it suspects an intrusion is being attempted.
Features
Common Personal Firewall Features:
- Alert the user about outgoing connection attempts
- Allows the user to control which programs can and cannot access the local network and/or Internet
- Hide the computer from port scans by not responding to unsolicited network traffic
- Monitor applications that are listening for incoming connections
- Monitor and regulate all incoming and outgoing Internet traffic
- Prevent unwanted network traffic from locally installed applications
- Provide the user with information about an application that makes a connection attempt
- Provide information about the destination server with which an application is attempting to communicate
Criticisms
- Instead of reducing the number of network-aware services, a personal firewall is an additional service that consumes system resources and can also be the target of an attack, as exemplified by the Witty worm.
- If the system has been compromised by Malware, Spyware or similar software, these programs can also manipulate the firewall, because both are running on the same system. It may be possible to bypass or even completely shut down software firewalls in such a manner.
- The high number of alerts generated by such applications can possibly desensitize users to alerts by warning the user of actions that may not be malicious (e.g. ICMP requests).
- Software firewalls that interface with the operating system at the kernel mode level may potentially cause instability and/or introduce security flaws and other software bugs.
See also
- Comparison of firewalls
- Antivirus software
- Computer network
- Computer security
- Firewall (networking)
- Network security
External links
- Home PC Firewall Guide - Links to several personal firewall vendors and independent third party reviews.
- Samspade - A different view of personal firewalls
- Software Firewalls: Made of Straw? Part 1 and Part 2 - explanation of personal firewall design and discussion of inherent shortcomings
- Firewall testing at Matousec
- Several firewall tests at Firewall leak tester
- Test My PC Security.com- wide range of downloadable firewall testing software aimed at helping users improve their PC's security.


























