Search Results for "system firewall"
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Showing 848 open source projects for "system firewall"
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AgentGuard
AgentGuard is a firewall for AI agents
AgentGuard is a real-time protection layer designed to safeguard AI agents and applications from runaway execution, excessive costs, and unsafe behavior during interaction with large language model APIs. It works by intercepting API calls made by an AI system and continuously monitoring usage, including token consumption and associated costs, allowing developers to enforce strict budget limits. When predefined thresholds are reached, the system can automatically halt execution, trigger... -
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CrowdSec
Firewall able to analyze visitor behavior & provide adapted response
...A modern behavior detection system, written in Go. It stacks on Fail2ban's philosophy, but uses Grok patterns & YAML grammar to analyse logs, a modern decoupled approach (detect here, remedy there) for Cloud/Containers/VM based infrastructures. Once detected you can remedy threats with various bouncers (block, 403, Captchas, etc.) and blocked IPs are shared among all users to further improve their security. -
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SafeLine
Serve as a reverse proxy to protect your web services from attacks
SafeLine is a self-hosted WAF(Web Application Firewall) to protect your web apps from attacks and exploits. A web application firewall helps protect web apps by filtering and monitoring HTTP traffic between a web application and the Internet. It typically protects web apps from attacks such as SQL injection, XSS, code injection, os command injection, CRLF injection, LDAP injection, XPath injection, RCE, XXE, SSRF, path traversal, backdoor, brute force, HTTP-flood, bot abuse, among others. By... -
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OpenSnitch
OpenSnitch is a GNU/Linux port of the Little Snitch firewall
OpenSnitch is a GNU/Linux port of the Little Snitch firewall. You can launch the GUI from the icon or from the system menu. The daemon will start intercepting connections, prompting you to allow or deny them. If you don't apply an action, after 15 seconds (configurable) it'll apply the default action configured. When you open the GUI, you'll see all the connections and processes that the daemon has intercepted. -
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ProxySQL
A high-performance MySQL proxy
ProxySQL is an open source, high performance, high availability, database protocol-aware proxy for MySQL. It was created due to a lack of high performance open source proxies, and is able to scale millions of connections across hundreds of thousands of backend servers, all while getting the freedom of being open source. ProxySQL provides end-to-end MySQL connection handling, real-time statistics and database traffic inspection. It's got failover detection, rich query rule definitions, and... -
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Coraza
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Coraza is an open-source, enterprise-grade, high-performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set. Coraza is a drop-in alternative to replace the soon-to-be abandoned Trustwave ModSecurity Engine and supports industry-standard SecLang rule sets. Coraza runs the OWASP Core Rule Set (CRS) to protect your web applications from a wide range of... -
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NetBird
Connect your devices into a secure WireGuard-based overlay network
NetBird is an open-source solution that builds a WireGuard®-based overlay network enabling seamless, encrypted peer-to-peer connectivity without the complexity of firewall rules, port forwarding, or centralized VPN gateways. It integrates access control features such as SSO and MFA for secure, policy-driven networking. Every machine in the network runs NetBird Agent (or Client) that manages WireGuard. Every agent connects to Management Service that holds network state, manages peer IPs, and... -
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FireHOL
A firewall for humans.
FireHOL is a language (and a program to run it) that builds secure, stateful firewalls from easy-to-understand, human-readable configurations. The configurations stay readable even for very complex setups. FireQOS is a program that sets up traffic shaping from an easy-to-understand and flexible configuration file. Both programs abstract away the differences between IPv4 and IPv6. so you can concentrate on the rules you want. You can apply rules for IPv4 or IPv6, or both, as you need. -
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Kevux Firewall
Provide basic firewall program for Kevux using FLL.
The Kevux Firewall program is one of the oldest Featureless Linux Library (FLL) programs. This project now exists outside of the FLL as its own distinct project and repository. -
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ProxmoxVE Community Scripts
Proxmox VE Helper-Scripts (Community Edition)
A community-maintained collection of over 300 helper scripts designed to streamline setup and maintenance of Proxmox Virtual Environment (VE). Originally forked from tteck's repository, it provides automation for installations, backups, networking, storage management, and system optimizations. -
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Tempesta FW
All-in-one solution for high performance web content delivery
Tempesta FW is an all-in-one open-source solution for high performance web content delivery and advanced protection against DDoS and web attacks. This is a drop-in-replacement for the whole web server frontend infrastructure: an HTTPS load balancer, a web accelerator, a DDoS mitigation system, and a web application firewall (WAF). Tempesta FW is the first and only hybrid of a Web accelerator and a multi-layer firewall. This unique architecture provides seamless integration with the Linux iptables or nftables. Tempesta FW services up to 1.8M HTTP requests per second on the cheapest hardware, which is x3 faster than Nginx or HAProxy. ... -
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Netdeep Secure Firewall
Next Generation Open Source Firewall
Netdeep Secure is a Linux distribution with focus on network security. Is a Next Generation Open Source Firewall, which provides virtually all perimeter security features that your company may need. It offers Web content filters, ensuring better performance of the network, allowing users to use the service efficiently and securely, providing a deep control of the use of the Web access service, blocking access to unwanted websites, Virus, Spam, Applications and intrusion attempts. Its... -
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OpenWrt PassWall
OpenWRT plugin that provides proxy routing management
openwrt-passwall is a comprehensive OpenWRT plugin that provides proxy routing management for internet traffic. It integrates with various tools and protocols like Shadowsocks, V2Ray, XRay, and Trojan to bypass censorship and optimize network performance. Designed for advanced users and network administrators, Passwall features a full-featured web UI and dynamic rules for routing and DNS control. -
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Nipe
An engine to make Tor network your default gateway
Nipe is a Perl-based engine whose primary aim is to make the Tor network act as the default gateway for outgoing traffic. In practice, it configures system firewall rules (iptables) and network routing so that almost all IPv4 traffic is redirected through Tor. The tool provides commands such as install, start, stop, restart, and status to manage its behavior. When “start” is issued, it sets up the necessary rules; when “stop” is used, it attempts to remove those rules. Nipe currently operates over IPv4 and does not yet support IPv6, meaning that users with IPv6 connectivity may bypass Tor routing. ... -
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frp
A Fast Reverse Proxy
frp stands for exactly what it is: a fast reverse proxy. It helps you expose a local server behind a NAT or firewall to the Internet. It is currently under development, but already supports TCP and UDP, as well as HTTP and HTTPS protocols where requests can be forwarded to internal services by domain name. It also has a P2P connect mode and many other nifty features. These include configuration files, environment variables, a dashboard that shows you frp's status and proxies' statistics... -
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FWiptables. Firewall With iptables.
iptables script in only one file
The fwiptables is a one-file WIZARD, for IPTABLES with COMMAND-LINE, with CLI-MENU, with GUI-MENU, with GUI-ROLL, with GUI-SHELL. fwiptables develop with Purpose Educational Since 2020, developing code Since 2024, cleaning code Since 2025, fixing code Browse Wiki: https://sourceforge.net/p/f-iptables/wiki/browse_pages/ Anonymouse Ticket: https://sourceforge.net/p/f-iptables/tickets/ -
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wireguard-install
WireGuard road warrior installer for Ubuntu, Debian, AlmaLinux
WireGuard Install is an interactive Bash installer for quickly deploying a road-warrior WireGuard VPN server on Linux. It validates the operating system, privileges, networking environment, and kernel requirements before beginning configuration. The assistant selects server addresses, ports, DNS settings, and an initial client through a guided terminal workflow. It installs WireGuard packages, enables packet forwarding, and creates the firewall and routing rules needed for tunneled traffic. ... -
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V2Ray
Shell script that aims to make installing and managing V2Ray
This repository offers an interactive, one-command script that installs and manages a V2Ray-based proxy service on common Linux distributions. It automates routine but error-prone steps such as fetching the latest binaries, generating credentials (for example, UUIDs), writing JSON config files, opening firewall ports, and setting up a systemd service for automatic start. The script includes a menu-driven manager to modify ports, protocols, and users, restart the service, or view logs without... -
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GoProxy
High performance proxy server implemented by golang
The GoProxy is a high-performance http proxy, https proxy, socks5 proxy, ss proxy, websocket proxies, tcp proxies, udp proxies, game shield, game proxies. Supports forward proxies, reverse proxy, transparent proxy, internet nat proxies, https proxy load balancing, http proxy load balancing , socks5 proxies load balancing, socket proxy load balancing, ss proxy load balancing, TCP / UDP port mapping, SSH transit, TLS encrypted transmission, protocol conversion, anti-pollution DNS proxy, API... -
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How To Secure A Linux Server
An evolving how-to guide for securing a Linux server
...It focuses on step-by-step security improvements rather than abstract theory, making it accessible to administrators who need clear actions. The guide covers server setup, operating system choices, SSH hardening, firewall rules, user accounts, automatic updates, logging, intrusion prevention, and common web server considerations. It also includes dedicated material for kernel sysctl hardening and Nginx security. The project is not positioned as a complete enterprise compliance framework, but it provides a strong baseline for safer self-hosted servers. ... -
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Inbucket
Disposable webmail server (similar to Mailinator) with built in SMTP
Inbucket is an email testing application; it will accept messages from any email address and make them available to view via a web interface. When you need to test your webapp's outbound emails with Mailinator but are stuck behind a firewall, Inbucket provides the solution. It allows you to keep your new application development secret until it's time to release it. Inbucket is ideal for validating that emails go out as part of your integration test suite, sending links to coworkers to... -
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Zeek
Zeek is a powerful network analysis framework
...Vern and the project’s leadership team renamed Bro to Zeek in late 2018 to celebrate its expansion and continued development. Zeek is not an active security device, like a firewall or intrusion prevention system. Rather, Zeek sits on a “sensor,” a hardware, software, virtual, or cloud platform that quietly and unobtrusively observes network traffic. Zeek interprets what it sees and creates compact, high-fidelity transaction logs, file content, and fully customized output, suitable for manual review on disk or in a more analyst-friendly tool like a security and information event management (SIEM) system. -
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SoftEther VPN
Cross-platform multi-protocol VPN software
An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful... -
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Symfony Security Core
Symfony Security Component - Core Library
Part of the Symfony framework, the Security Core component provides the foundational tools for managing authentication, authorization, and access control in PHP applications. It’s framework-agnostic and can be used independently in any PHP project. -
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Fail2Ban
Daemon to ban hosts that cause multiple authentication errors
Fail2Ban scans log files and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. sending an email) could also be configured. Out of the box Fail2Ban comes with filters for various services (apache, courier, ssh, etc). Fail2Ban is able to reduce the rate of incorrect authentications attempts...
