Andrii Bidochko

• Updated: March 27, 2026
• 1 min read

Automated Let’s Encrypt TLS Certificate Installation on Brother Printers

Ubos.tech brings you a step‑by‑step guide on how to secure your Brother printer with a free Let’s Encrypt TLS certificate using Certbot and Cloudflare. This method automates the entire process, eliminating manual certificate handling and ensuring your printer’s web interface stays encrypted.

Why Secure a Brother Printer?

Modern office environments rely on network‑connected printers for sensitive documents. Enabling HTTPS protects credentials and data transmitted between users and the printer’s admin console.

Key Steps Covered

1. Configure Cloudflare DNS for the printer’s hostname.
2. Install Certbot on a Linux server and obtain a certificate via the DNS‑01 challenge.
3. Automate renewal with a cron job that updates the printer’s certificate via its API.
4. Validate the HTTPS connection on the printer’s web UI.

For the full technical walkthrough, see the original article here.

Related Ubos.tech Resources

• How to Set Up HTTPS on IoT Devices
• Cloudflare DNS Automation Guide
• Certbot Best Practices for Automated Renewals

Implementing this solution ensures your printing infrastructure complies with modern security standards while keeping management simple and automated.

Andrii Bidochko

CTO UBOS

Andrii Bidochko is an AI entrepreneur and researcher focused on AI agents, reinforcement learning, and autonomous systems. He writes about the technologies shaping the future of machine intelligence, from frontier models and agent architectures to real-world AI applications.