SSL_connectは1、errno=0、peeraddr=162.243.189.2:443、state=error: certificate verify failed (Hostname mismatch)を返しました

This is a bad idea as it will undermine many protections that X509 certificates provide.

Can you show what your non-secret settings are here? Please note Oracle Cloud is not supported, but we’ll still take a quick look to see if anything is obviously wrong.