It lets you allow or prevent connections from various sources, all the way down to specific IP addresses or ranges.

它让你基于特定ip地址或范围，来准许和禁止来自各种来源的连接。

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The technology will allow users to have much faster connections than the current 4g services, and is expected to play a core role in connecting all smart devices.

这项技术将使得用户拥有比目前的4g更快的连接服务，并预计将在连接所有智能设备上发挥核心作用。

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The most likely cause for this error is that the cache administrator does not allow this cache to make direct connections to origin servers, and all configured parent caches are currently unreachable.

很可能起因为这个错误是贮藏所管理员不允许这个贮藏所做与起源服务器的直接连接，并且所有配置的父母贮藏所当前是不能得到的。

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All four of the new systems include full hardware redundancy, redundant storage and network connections and allow for live operating system upgrades, Sun said.

CNN: CeBIT: Sun puts new servers in spotlight