Sometimes, we may face NGINX error code “SSL_ERROR_RX_RECORD_TOO_LONG”. Here, we’ll explain some of the causes and fixes for the error. As part of our Server Management Service, Bobcares provides answers to all of your questions.
Overview
NGINX Error Code “SSL_ERROR_RX_RECORD_TOO_LONG”: More About
The SSL_ERROR_RX_RECORD_TOO_LONG error can occur due to various issues with SSL/TLS configuration. Here’s how you can identify and fix it:
Common Causes
1. Incorrect SSL Port: SSL connections should use port 443. If the server uses a different port, the SSL handshake will fail.
2. Server Misconfiguration: Incorrect or outdated SSL certificates on the server can cause this error.
3. Client-Side Issues: Outdated browsers or corrupted files in Firefox can trigger SSL errors.
4. Firewall or Network Issues: Network devices may disrupt SSL traffic.
5. SSL Certificate Issues: Expired or misconfigured SSL certificates can lead to this error.
Fixes
1. Clear Browser Cache: Go to Firefox > Menu > Settings > Privacy & Security > Clear Data.
2. Update and Reset Firefox: Menu > Help > About Firefox > Restart to Update Firefox.
3. Disable Extensions: Menu > Add-ons and Themes > Extensions > Disable extensions.
4. Try HTTP: Change “https://” to “http://” in the address bar to see if the site loads.
5. Update Proxy Settings: Menu > Settings > Network Settings > No proxy.
6. Change TLS Preferences: The error may be due to the TLS settings. To fix it, open Firefox and type about:config in the address bar. Accept the warning, then search for tls. Find security.tls.version.max and double-click it. Change the value from 4 to 3. Restart the browser and try visiting the site again.
7. Add Site to Trusted Sites List (Windows): Search “Internet Options” > Security > Trusted Sites > Add URL.
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Conclusion
A common cause of the SSL_ERROR_RX_RECORD_TOO_LONG problem in Nginx and browsers such as Firefox is incorrect SSL/TLS setup. We may successfully fix this problem by making sure the SSL port is being used correctly, upgrading TLS options, and checking SSL certificates.
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