egzhe'g使用公网证书进行NetScaler环境的部署，经常会发现部分移动终端无法访问虚拟资源，提示证书错误，原因如下：

据传，目前国外证书颁发机构无法对个人或企业申请的证书直接颁发最高级别的顶级证书，

目前一般的做法是通过委托第三方子集证书颁发机构进行颁发。

以知名公网证书颁发机构VeriSign为例，顶级证书类型为G5，目前一般会通过G3机构进行证书的颁发。

用户采购证书后，系统会根据提交的csr文件提供证书文件，同时还会提供2个intermedia证书，如下是资生堂证书采购后收到的邮件：

您的SSL证书（适用于其它Web服务器）->NetScaler申请的服务器证书
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----

企业型SSL中级证书->中级证书 G3 intermedia证书
-----BEGIN CERTIFICATE-----
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Rs/iGAZeqa6ogZpHFt4MKGwlJ7net4RYxh84HqTEy2Y=
-----END CERTIFICATE-----

企业型SSL交叉证书->顶级证书 G5
-----BEGIN CERTIFICATE-----
MIIEkDCCA/mgAwIBAgIQGwk7eGCW2je7pFGURsiWeDANBgkqhkiG9w0BAQUFADBf
MQswCQYDVQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xNzA1BgNVBAsT
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+le9yemPRiE5n1FlTI46vihBcB0=
-----END CERTIFICATE-----

我们需要做的是将这三个证书保存后上传NetScaler，如名称分别为server,cer G3,cer  G5,cer

将server,cer与server,key组合成server,pair，将G3,cer单独组合成G3,pair，将G5,cer单独组合成G5,pair。

同时，在Certificates页面，将server,pair和G3,pair做关联，再将G3,pair和G5,pair做关联