+1,武汉电信复现
```
~$ curl -k -v 
https://mazhuang.org                                                                                                                                                                  [master]
*   Trying 185.199.108.153...
* TCP_NODELAY set
* Connected to 
mazhuang.org (185.199.108.153) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/cert.pem
  CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-ECDSA-AES128-GCM-SHA256
* ALPN, server did not agree to a protocol
* Server certificate:
*  subject: C=CN; ST=GD; L=SZ; O=COM; OU=NSP; CN=SERVER; 
[email protected]*  start date: Sep 26 09:33:13 2019 GMT
*  expire date: Sep 23 09:33:13 2029 GMT
*  issuer: C=CN; ST=GD; L=SZ; O=COM; OU=NSP; CN=CA; 
[email protected]*  SSL certificate verify result: self signed certificate in certificate chain (19), continuing anyway.
```