首先感谢提供的测试MQTT 服务器
近日访问 broker.emqx.io 8883 出现 A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file.
通过openSSL检查
echo | openssl s_client -connect broker.emqx.io:8883 -servername broker.emqx.io 2>/dev/null | openssl x509 -noout -dates -subject
检查发现:
notBefore=Aug 5 00:00:00 2024 GMT
notAfter=Aug 5 23:59:59 2025 GMT
subject=CN=*.emqx.io