来源：https://stackoverflow.com/questions/11621768/how-can-i-make-git-accept-a-self-signed-certificate
git -c http.sslVerify=false clone https://example.com/path/to/git
或者
git config --global http.sslVerify false # Do NOT do this!
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http.sslVerify Whether to verify the SSL certificate when fetching or pushing over HTTPS. Can be overridden by the GIT_SSL_NO_VERIFY environment variable.
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http.sslCAInfo File containing the certificates to verify the peer with when fetching or pushing over HTTPS. Can be overridden by the GIT_SSL_CAINFO environment variable.
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http.sslCAPath Path containing files with the CA certificates to verify the peer with when fetching or pushing over HTTPS. Can be overridden by the GIT_SSL_CAPATH environment variable.
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http.sslCert File containing the SSL certificate when fetching or pushing over HTTPS. Can be overridden by the GIT_SSL_CERT environment variable.
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http.sslKey File containing the SSL private key when fetching or pushing over HTTPS. Can be overridden by the GIT_SSL_KEY environment variable.
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http.sslCertPasswordProtected Enable git's password prompt for the SSL certificate. Otherwise OpenSSL will prompt the user, possibly many times, if the certificate or private key is encrypted. Can be overridden by the GIT_SSL_CERT_PASSWORD_PROTECTED environment variable.