Description: Learn how to set the utf8mb4 collation in MySQL with our step-by-step guide. Discover the benefits of using utf8mb4 and ensure your database is capable of handling a wide range of characters and emojis. Enhance the compatibility and performance of your MySQL database today.
When using nginx as SSL proxy gateway, some issue such as Untrusted anchors.
Untrusted anchors refers to some certificate chain no validate in the cert provided in cert file stored for nginx. The issue may not be easily discovered, the cert shown in chrome browser or other browser show no error. But in android web client request, the issue cause error.
Find out issue of SSL:
The issue about SSL can be find by Qualys SSL test lab
Fix Untrusted anchors issue:
If the issue confirm in Qualys SSL test, can follow the link to rebuild the cert.
Futher improvement: