Most likely you are missing an intermediate certificate in the cert-chain. nginx does not support supplying multiple certificates as apache ... ... <看更多>

Steps to reproduce the behavior: Setup an Ubuntu VM 16.04; Setup nginx as a reverse proxy to redirect traffic to prisma server (see config file); Setup prisma ... ... <看更多>

DevOps & SysAdmins: Verify return code: 21 (unable to verify the first certificate) Lets encrypt Apache to Nginx ... ... <看更多>

本篇文章會用到的resources: Nginx Ingress Controller: 才能夠使用Ingresskubectl ... verify error:num=21:unable to verify the first certificate ... <看更多>

The error is because the client - postman - cannot verify the server certificate. My assumption based on the information you provided is ... ... <看更多>