https://common-buy.aliyun.com/?spm=5176.7968328.1120760.1.10341232phOVIJ&commodityCode=cas#/buy

选择：Symantec

image.png

付款成功后点击补全信息：

13163265-15128d6409f94239.png

信息填写完成后进行下面操作（前一张图片中的证书状态从 “待完成” 变为 “审核中”）

（前一张图片中的状态从 “补全” 变为 “进度” 点击进度进入下张图页面）

image.png

等待审核，审核结束后点击下载，进行服务器配置

https://yundun.console.aliyun.com/?spm=5176.2020520163.aliyun_sidebar.aliyun_sidebar_cas.47632b7afbS2Wr&p=cas#/cas/download/214957272800117?regionId=

image.png
对于https失效问题解决
https://blog.csdn.net/jinx_leeten/article/details/51769154

nginx下的配置
location ~ .*.(php|php5)?document_root$fastcgi_script_name;
include fastcgi_params;
#new line
include fastcgi.conf;
}