Docker Nginx Free SSL Certificate for Synology NAS

# Docker Nginx Free SSL Certificate for Synology NAS ## 📋 Video Overview This comprehensive tutorial demonstrates how to configure automatic SSL certificate renewal for Docker-based Nginx on Synology NAS, achieving a "never-expire" HTTPS certificate solution. The creator DP provides hands-on guidance for using ACME.sh-generated SSL certificates with automated scripts to enable automatic certificate renewal for Nginx. --- ## 🎯 Core Content ### Prerequisites 1. **Required Components** - Docker-based ACME.sh installed and functioning - Docker-based Nginx installed and running - Synology NAS DSM system access - SSH login privileges 2. **Required Downloads** - SSL renewal script (.sh file) from dpit.lib00.com - Configuration script via Quark Drive or alternative sources ### Detailed Configuration Steps **Step 1: Create Directory Structure** - Create `sys_need_keep` folder in Synology - Establish `log` folder for certificate renewal logs - Create `syno_ssl_renew` folder for update scripts **Step 2: Collect Critical Paths** Record three essential paths: 1. Log file storage path 2. ACME certificate generation path 3. Docker Nginx SSL certificate storage path (typically parent directory of certificate files) **Step 3: Edit Update Script** Upload the downloaded .sh script to `syno_ssl_renew` folder and modify using Synology's online editor: - Replace ACME SSL certificate generation location - Replace Nginx SSL certificate path - Confirm certificate filenames (fullchain.cer and .key files) - Update Nginx container name or ID (e.g., ee_nginx_1.27.3) **Step 4: Configure Scheduled Task** Set up in Synology Control Panel: - Task type: User-defined script - User permissions: root - Execution frequency: Weekly (recommended Monday 3:00 AM) - Run command: Point to custom script with log output ### Testing and Verification Process 1. **Check Current Certificate Information** - Locate Nginx container's port 443 mapping via Docker Container Manager - Use command-line tools to view current certificate validity period 2. **Force Update Testing** - SSH login to NAS and switch to root user - Execute ACME force update command - Manually run scheduled task - Check log files to confirm execution results - Re-verify certificate validity period to confirm successful update 3. **Verification Criteria** - Certificate expiration date has changed - Log file shows successful Nginx restart - HTTPS access functions without warnings --- ## 💡 Technical Highlights - **Script Mechanism**: Automatically copies ACME-generated certificate files to Nginx directory and restarts Nginx container to apply certificates - **File Correspondence**: Ensure `fullchain.cer` and `.key` filenames remain consistent between script and Nginx configuration - **Automation**: Weekly automatic execution through scheduled tasks without manual intervention --- ## 🔧 Use Cases - NAS users needing HTTPS configuration for self-hosted services - Advanced users preferring alternatives to integrated tools like NPM - Scenarios requiring flexible certificate management solutions - Technical personnel with SSL certificate automation requirements --- ## 📌 Important Notes 1. Must complete basic Docker ACME and Nginx configuration first 2. Script paths and container names require customization based on actual setup 3. Recommended to use Synology online editor to avoid formatting issues 4. Regularly check log files to ensure automatic updates function properly --- ## 🎓 Creator's Perspective The creator emphasizes the importance of learning multiple solution approaches. While tools like NPM cover most scenarios, mastering ACME+script methods provides options for more complex requirements. This "comprehensive learning" approach ensures users have alternatives when encountering special scenarios. --- ## 🔜 Coming Next The next video will cover Docker-based Jellyfin SSL certificate auto-renewal using ACME certificates, featuring more advanced configuration complexity suitable for intermediate learners. --- ## SEO Keywords Docker, Nginx, SSL Certificate, Synology NAS, ACME.sh, Free Certificate, Let's Encrypt, HTTPS Configuration, Auto-renewal, DSM, Containerized Deployment, Automation Script, Network Security, Home Server