curl加载https报ssh认证失败
原因，系统时间与远程服务时间不一致 解决方案：http://stackoverflow.com/questions/21181231/server-certificate-verification-failed-cafile-etc-ssl-certs-ca-certificates-c 原文如下 Check your system clock
$ date
If it's not correct the certificate check will fail.
To correct the system clock
$ apt-get install ntp
The clock should synchronize itself.
Finally enter the clone command again.
dns配置
修改/etc/resolv.conf，加入
nameserver 114.114.114.114
nameserver 8.8.8.8
注：重启后会被重置
