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 Update the Linux/BSD system with latest CA bundle and patches from System Update otherwise some issues may occur when generating your free SSL certificates.
+生成免费SSL证书前，请使用Linux/BSD 更新工具更新CA包和系统补丁，否则在生成免费SSL证书时可能会出现一些不可预料的问题，完成更新后请按以下步骤进行安装。
 Once completed begin with the install procedure below.
 - CentOs: `yum update ca-certificates`
 - Debian: `apt update ; apt install ca-certificates` (updates package if already installed) \