How to Deploy a Self-Hosted WAF Alternative to Cloudflare

Description and use

SafeLine lets you deploy a web firewall inside your own network, eliminating cloud traffic, reducing costs, and giving full control over logs and policies.

Problem

Teams need a Web Application Firewall that stays within their own network to avoid data leaving the premises, eliminate per-request billing, and maintain full control over logs and policies.

Outcome

SafeLine can be deployed in minutes on modest hardware (1 CPU, 1 GB RAM, 5 GB disk), providing local inspection of web traffic, eliminating per‑request billing, and offering a native dashboard for monitoring.

Workflow

• 1. Pull the latest SafeLine manager script via curl
• 2. Execute the script with bash to download and run the container
• 3. Configure the container as a reverse proxy in front of existing upstreams
• 4. Access the web console at https://<ip>:9443 to view logs and alerts
• 5. Optionally export logs to an SIEM for further analysis

Evidence

SafeLine is deployed as a container that acts as a reverse proxy. Its semantic‑analysis engine inspects each request for attack intent, blocking SQLi, XSS, and automated abuse before it reaches your app.

Source

1 CPU, 1 GB RAM, 5 GB disk — modest.

Source

Deploy it in minutes: bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/manager.sh)" -- --en

Source