如果 value 等于 '0'，则对 TLS 连接禁用证书验证。这使得 TLS 和 HTTPS 不安全。强烈建议不要使用此环境变量。
¥If value equals '0', certificate validation is disabled for TLS connections.
This makes TLS, and HTTPS by extension, insecure. The use of this environment
variable is strongly discouraged.