We recommend free and open source firewall tools.
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Category: Security
nftables – in-kernel packet classification framework
nftables replaces the popular {ip,ip6,arp,eb}tables. This software also provides libnftables.
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firewalld – dynamically managed firewall
firewalld provides a dynamically managed firewall with support for network/firewall zones.
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iptables – configure the Linux kernel and later packet filtering ruleset
iptables is a user space application program that allows a system administrator to configure the Netfilter tables, chains, and rules.
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ufw – manages a netfilter firewall
ufw stands for Uncomplicated Firewall. This is software for managing a netfilter firewall.
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Shorewall – gateway/firewall configuration tool
The Shoreline Firewall, more commonly known as “Shorewall”, is an open source firewall tool that builds upon the Netfilter.
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gufw – manage your firewall
gufw is a graphical user interface for Ubuntu’s Uncomplicated Firewall.
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Vuurmuur – powerful firewall manager built on top of iptables
Vuurmuur is a powerful firewall manager built on top of iptables on Linux. It has a simple and easy to learn configuration that allows simple and complex configurations.
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Exosphere – aggregated patch and security update reporting
Exosphere is a CLI and Text UI driven application that offers aggregated patch and security update reporting.
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cariddi – scanning tool
Take a list of domains, crawl urls and scan for endpoints, secrets, api keys, file extensions, tokens and more.
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YARA-X – re-incarnation of YARA
YARA-X is a re-incarnation of YARA, a pattern matching tool designed with malware researchers in mind.
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Kanha – web-app pentesting suite
With kanha you can do Fuzzing, Reverse dns lookup, common http response, subdomain takeover detection and many more.
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PRS – web security scanner
PRS is a CLI-based scanner focused on safe assessment of web targets.
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rsecure – AES-GCM file encryption and decryption tool
rsecure is a command-line tool for AES-GCM file encryption and decryption. Aimed at protecting sensitive files, backups, and personal data.
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14 Best Free and Open Source Steganography Tools
Conceal messages in other messages.
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Envy – manage secrets
Envy is a single binary that gives you both a slick TUI for browsing secrets and a CLI for automation.
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Chamber – secrets manager
Chamber is a secure, local-first secrets manager, featuring encrypted storage, intuitive terminal UI, and import/export capabilities.
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Rooks – steganographic tool
Rook Stego is a steganographic tool that implements some of the most advanced hiding methods.
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9 Best Free and Open Source Host-Based Intrusion Detection Systems
An intrusion detection system is a device or software application that monitors a network or systems for malicious activity or policy violations.
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6 Best Free and Open Source Web Application Firewalls
A web application firewall (WAF) is a type of application firewall that lets you see and analyze HTTP traffic to and from a web application. We recommend our favourite WAFs.
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