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Posts

2025

Next.js Security Playbook (Checklist + Cheatsheet)
GitHub Actions: Debugging Playwright Timeouts in Nextcloud CI
Rotate Everything in Production (Part 4): Proxy Chain Refresh, Restarts, and the 'Connection Reset' Healthcheck
Rotate Everything in Production (Part 3): Agent mTLS Login + App Leaf Certs (ncprd1, resume2me)
Rotate Everything in Production (Part 2): Admin mTLS + Vault Server TLS (and Why These Two Come First)
GitHub Actions: Nextcloud App CI Pipeline (Matrix + E2E)
Rotate Everything in Production (Part 1): The Order That Keeps You Out of Trouble
Caido in Practice: A Modern Proxy and the Plugins That Make It Shine
Wiki: Vue
Titel hier
Wiki: Tomcat
What I Want to Explore Next in This Lab
How This Infra Supports My Nomad Lifestyle
Wiki: Test Proxy App Integration
Threat Modeling My Personal Infra Project
Creating Checklists for Infra Changes and Security Tests
Lessons From Locking Myself Out of Vault (Multiple Times)
Wiki: Security Concept Summary
Two Nextcloud Instances Backed by Vault PKI
Wiki: Okta
Using VPN/IPsec as a Secure Entry Point
Hardening SSH and Network Access to the VPS
Wiki: OAuth
Setting Up an Android Testing Lab for Bug Bounty
My HTTP Testing Stack: proxify, Caido and CLI Tools
Wiki: OAuth Authentication
Turning My VPS Into a Bug Bounty Recon Node
Wiki: NGINX Reverse Proxy (Test Proxy)
Building a Logging Path: From Services to a Single View
Vault mTLS & Proxy Setup (Runbook)
End-to-End PKI & TLS Automatio
How I Want Apps to Consume Secrets: Vault Agents and Templates
Wiki: Main Proxy App Integration
Designing My Reverse Proxy Chain: mainproxy, proxytest, proxyprod
Mapping Unix Users to Trust Zones on My VPS
Podman Global Configuration
Wiki: LetsEncrypt DNS-01 (Hostpoint)
My Vault Access Model: Root, Admin, Services and Humans
Vault Admin Setup
Wiki: IP Ranges
Overview
Planning Certificate Rotation With Systemd Timers
Wiki: GraphQL Discovery
Automating Certificate Health Checks on My VPS
security concept summary
Designing a Maintenance Listener: My Break-Glass Door Into Vault
letsencyrpt dns01_hostpoint_wi
Surviving Expired Admin Certificates in a mTLS-Only Vault Setup
Wiki: GraphQL Attack Vectors
Building My Own PKI: Offline Root, Intermediate CAs and Vault as CA
NGINX Reverse Proxy & Test‑Pro
Wiki: EspoCRM Portal on Subdomain
Designing My VPS Layout: Unix Users and Rootless Podman
Git & SSH Agent Setup for GitH
Wiki: Container Network Solutions
Wiki: Container networking options (rootful vs rootless)
What I’m Trying to Build With My VPS and Vault
Wiki: Cache Oracle
Wiki: Salesforce Aura / Lightning
Wiki: Web Cache Poisoning
Wiki: Web Cache Deception
Wiki: Subdomain Takeover
Wiki: HTTP Request Smuggling
Wiki: Cross-Site WebSocket Hijacking
Wiki: ASP.NET
Wiki: GraphQL Testing Checklist
Tools: Web Testing Cheatsheet (curl, ffuf, nuclei)
Tools: Recon Stack (subfinder → httpx → katana → nuclei)
Bug Bounty: Android Lab (emulator, proxy, Frida)
Tools: SSH + File Transfer (scp, rsync, tunnels)
Bug Bounty: HTTP Tooling (proxy → replay → automate)
Bug Bounty: Recon Workflow (fast → deep → repeat)

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