Blog
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Caddy Reverse Proxy for Mailu: Dual HTTPS Setup
Configure Caddy as a reverse proxy for Docker Mailu with dual-TLS architecture. Learn to terminate HTTPS on port 443, proxy internal traffic, and share a wildcard SSL certificate across services for secure mail server…
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ERPNext v15 Slack Notifications for Stock Movements
Set up webhook-based Slack notifications for ERPNext v15 stock movements including Material Issues, Transfers, and Purchase Receipts. Learn webhook configuration without custom apps and fix common Jinja TypeError issues in payload templates.
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Disable IPv6 on Linux Permanently with sysctl
Permanently disable IPv6 on Linux using sysctl without rebooting. Learn to configure persistent settings, apply changes instantly, and verify IPv6 is disabled across all network interfaces.
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UFW Firewall: Allow TCP Port 8123 from Specific IP
Learn how to configure UFW (Uncomplicated Firewall) on Ubuntu and Debian to allow TCP port 8123 access from a specific IP address. This guide covers essential firewall rules for securing your Linux server with…
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Secure WireGuard Homelab: Complete Setup Guide
Build a secure homelab with WireGuard, Raspberry Pi, UFW, AdGuard Home, and Fail2Ban. Learn design principles, setup steps, security best practices, and validation for a production-ready home network.
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Homelab Security: WireGuard VPN & Firewall Setup Guide
Learn how to secure your homelab with WireGuard VPN setup, firewall hardening, and automated monitoring. This guide covers configuring WireGuard servers and clients, deploying across Raspberry Pi devices, and implementing enterprise-grade security practices for…
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WireGuard Split-Tunnel VPN: Secure Setup Guide
Learn how to set up a secure split-tunnel WireGuard VPN with AdGuard Home DNS filtering and UFW firewall protection. This comprehensive guide covers configuration, best practices, and operational lessons for production homelab environments.
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N8N Production Server Monitoring & Security Automation
Master N8N workflow automation for production server monitoring and security. Learn to detect, investigate, and respond to security alerts with complete alert lifecycle management and escalation procedures.