I spent an hour last night to change the VPS monitoring SSL certificate from the original TrustAsia or Symantec personal DV SSL certificate to a letsencrypt free SSL certificate. The reason is Chrome 70 I will no longer trust the Symantec certificate. The Chromium browser I am using can no longer open websites with Symantec certificates. The Symantec personal DV SSL certificate is applied for at Tencent Cloud. In fact, domestic Alibaba Cloud, Qiniu Cloud, Youpai Cloud, etc.