firewall

A comprehensive guide for securing Linux servers, covering SSH hardening, firewall configuration with UFW, and intrusion detection using tools like Fail2Ban and CrowdSec.

HOL Guard is the first firewall designed specifically for AI agents, providing security against threats.

A default-deny firewall daemon for local AI agents that intercepts every tool call, blocking dangerous actions and requesting user approval for ambiguous ones, with tamper-evident logging. Designed to mitigate prompt injection risks. Open source under MIT license.

A developer built a deterministic firewall in Rust for AI agents that runs under 5ms, using plans, MCP lists, and taint tracking to enforce security without hallucination or latency issues.

Arc Gate is an OpenAI-compatible firewall that tracks authority across entire AI agent sessions, escalating from allow to block before tool calls execute. It is available as a live demo and open-source on GitHub.

Claw Patrol is a security firewall for AI agents, sitting between agents and production to parse traffic and gate actions using HCL rules, blocking destructive SQL or requiring human approval for risky commands like kubectl delete pod.

A technical guide on blocking entire ASNs and cloud provider IP ranges from websites to mitigate unwanted bot and AI scraper traffic, using iptables and consolidation tools like net-consolidator and cidr-aggregator.

Deno open-sources Claw Patrol, a security firewall for AI agents that routes traffic through a tunnel, parses protocols, injects credentials, and enforces rules to prevent dangerous actions like SQL deletions or kubectl commands.

Claw Patrol is an open-source security firewall that sits between agents and production, allowing users to write HCL rules to gate agent actions like blocking destructive SQL or requiring human approval for kubectl commands.

Vercel's Firewall now features instant global propagation (~300ms) and a CLI command for managing rules, IP blocks, and Attack Mode.