Firewallv1.0.0

A startup deploys a web app on AWS EC2 instances, requiring HTTPS (443) for production traffic and SSH (22) for admin access. They must configure AWS Security Groups to allow inbound HTTPS from the internet and restrict SSH to their office IP, while blocking all other ports to minimize attack surface.

A financial services firm runs a PostgreSQL database on a Hetzner server for internal analytics. They need to ensure the database port (5432) is not exposed to the internet, using SSH tunnels or private network access only, and apply both provider and OS firewalls for defense in depth.

A distributed company uses WireGuard VPN on a DigitalOcean droplet to provide secure remote access to internal services. They must open UDP port 51820 for VPN traffic, limit SSH to VPN IPs, and configure IPv6 rules alongside IPv4 to prevent security gaps.

An e-commerce platform runs Docker containers on a Linux server for a web app, but Docker bypasses OS firewalls by default. They need to bind containers to localhost and use a reverse proxy for public access, while relying on provider-level firewalls to block unwanted traffic before it reaches Docker.

A healthcare organization must audit their firewall configurations on Windows and Linux servers to meet HIPAA compliance. They need to close unnecessary ports like 80/443 if no web server runs, ensure SSH is IP-restricted, and use online port scanners to verify only essential ports are open from the internet.

Offers firewall configuration and monitoring as a subscription service for small to medium businesses. Includes regular audits, rule updates for changing IPs, and 24/7 support to prevent lockouts and breaches, leveraging provider dashboards for blocked traffic logs.

Provides one-time or project-based services to set up and optimize firewalls on cloud platforms like AWS, DigitalOcean, or Hetzner. Focuses on best practices such as default deny rules, IP restrictions, and integrating with Docker or VPN setups for specific client needs.

Conducts hands-on workshops for IT teams on firewall configuration, covering critical steps like testing access before enabling rules and avoiding common mistakes. Targets industries with compliance requirements, using real-world scenarios to teach defense in depth.