wget https://www.openssl.org/source/openssl-1.1.0e.tar.gz

–2017-03-17 10:35:52– https://www.openssl.org/source/openssl-1.1.0e.tar.gz
Resolving www.openssl.org… 23.212.19.66, 2600:1406:28:288::c1e, 2600:1406:28:28b::c1e
Connecting to www.openssl.org|23.212.19.66|:443… connected.
ERROR: cannot verify www.openssl.org’s certificate, issued by `/C=US/O=Let’s Encrypt/CN=Let’s Encrypt Authority X3′:
Unable to locally verify the issuer’s authority.
To connect to www.openssl.org insecurely, use `–no-check-certificate’.
Unable to establish SSL connection.

 

加上–no-check-certificate参数即可

 

wget --no-check-certificate https://www.openssl.org/source/openssl-1.1.0e.tar.gz