#security

Guide to fixing the UFW and Docker firewall conflict on a VPS with ufw-docker, plus an overview of the Nixopus VPS management platform.

A checklist of security measures for login, logout, forgot-password and registration flows, plus practical deployment caveats.

ptn1411/skill ("Authorized Artifact Auditor", Python, no license file) is a pack of about 35 agent skills plus Python CLIs for reverse engineering and auditing software you own - fingerprinting, unpacking, decompiling, web and network recon, SBOM, CVE lookup. The README and MASTER_POLICY.md say defensive use only, but several skills in the repo (master-unlock, dotnet-keygen, binary-patcher, frida-hooker) are written as bypass and keygen tools. Read before installing.

alexgaoth/awesome-reverse-engineered is a searchable index of about 12,900 open-source projects that exist because someone reverse engineered a closed app, API, device, protocol, file format, game or AI tool, with a website, a JSON dataset (CC0) and an agent skill that searches it. Use it to check whether the work is already done before reverse engineering something yourself.

RedAmon (samugit83/redamon, MIT) is a self-hosted Docker penetration-testing framework that maps an authorized target into a Neo4j graph, runs an agent from a Kali sandbox behind approval gates, and can open a GitHub pull request for a fix.

security-audit (cloudflare/security-audit-skill, MIT) is an agent skill that runs a six-phase defensive security audit - reconnaissance with a coverage ledger, isolated hunters, adversarial candidate validation, schema-validated findings.json, independent record verification, and target-neutral reports - seeded from Cloudflare's fleet-wide vulnerability discovery harness. 48.2k stars, 3k forks, 98 open issues at check time.

A curated list of tools for secret management, vulnerability scanning, cryptography, security analytics, pentesting and PII detection.

Notes on Alfonso Campodonico's "Building your own sandboxes" (2026-10-18) - vmkit runs Firecracker or Cloud Hypervisor microVMs behind one API, each VMM inside a rootless namespace jail with a default-deny per-VM network, and kiln turns OCI images into one-erofs-per-layer microVM images. Main lesson - the VMM is the easy part, the policy around it is the work.

Analysis of the axios vulnerability chain (prototype pollution → CRLF injection → request smuggling) that bypasses AWS IMDSv2 and steals IAM credentials.

Explains delegating authentication to an external identity provider using claims-based tokens for single sign-on, less admin overhead, and stronger security, with Microsoft Entra ID examples.

Explains protecting services with a dedicated, low-privilege broker that validates and sanitizes requests before handing them to a trusted host, shrinking the attack surface.

Explains offloading shared cross-cutting functions such as SSL termination, authentication, and throttling to a gateway proxy so individual services stay simpler.

Reference implementation that combines global routing, gateway offloading, and health endpoint monitoring to give HTTP/HTTPS applications a secure entry point on Azure.

Validate third-party software artifacts in an isolated pipeline before they are trusted and released into the internal supply chain.

Give clients a short-lived, scoped token for direct access to a storage resource so data transfer bypasses the application server.