OpenSnitch is a free and open source application firewall for Linux. It is written in Python and released under GNU General Public License v3.0. Using OpenSnitch, you can manage multiple nodes, configure system firewall rules with GUI, outbound connections filtering,…
Wordfence is a free firewall and anti-virus plugin for WordPress websites. Just sign up on Wordfence website to get a free API key.
Main features:
Real-time traffic shows when crawlers and scrapers visit
Scan Core files for infections
View changes and repair Core files
Scan comments for blacklisted malware URL’s
Scan posts and pages for blacklisted malware URL’s
Scan for known malware files
Scan files for malware/virus URL’s
Block fake Googlebots and aggressive crawlers
Block brute-force login attacks
View top content consumers and Page Not Found errors (404)
Monitor disk space and check password strength
Scan for DNS changes
Monitor for dangerous IPs
(more…)
UFW is a firewall for Ubuntu users and it is available by default in all Ubuntu installations after 8.04 LTS but disabled by default. Actually the Uncomplicated Firewall or UFW is a front-end for iptables and netfilter firewall. It comes…
A firewall is designed to block unauthorized access while permitting authorized communications. It is a software which is configured to permit or deny computer applications based upon a set of rules and other criteria.
Comodo free personal firewall is one of the best and popular free firewall software in the market.It also offer free internet security suite (free antivirus + free firewall).Its installation is easy.Comodo firewall send alerts and updates automatically.And it has the most iportant feature called Default Deny Protection.