我想使用miniconda3安装软件包，但会弹出该错误：
Solving environment: failed
CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/noarch/repodata.json.bz2>
Elapsed: -
An HTTP error occurred when trying to retrieve this URL. HTTP errors are often intermittent, and a simple retry will get you on your way.
If your current network has https://www.anaconda.com blocked, please file a support request with your network engineering team.
SSLError(SSLError(SSLError("bad handshake: SysCallError(104, 'ECONNRESET')",),),)
顺便说一句，miniconda2运行良好，只有miniconda3有问题。
PS。我还尝试使用wget --no-check-certificate下载文件并也收到错误消息：
wget https://repo.anaconda.com/pkgs/main/linux-64/repodata.json.bz2
--2019-03-14 02:03:44-- https://repo.anaconda.com/pkgs/main/linux-64/repodata.json.bz2
Resolving repo.anaconda.com (repo.anaconda.com)... 104.16.130.3,
104.16.131.3, 2606:4700::6810:8303, ...
Connecting to repo.anaconda.com (repo.anaconda.com)|104.16.130.3|:443... connected.
Unable to establish SSL connection.
系统为CentOS，我已经使用sudo yum update来更新sys文件和库。