One way to counter this is by using a fully redundant path to accessexternal SAN (storage area network) devices-in this way, you can reduce failures caused by storage subsystem access problems.
The access protocol (network and data) supported by the external system may be different from the protocol that will be supported by the system-to-be-built.
外部系统所支持的访问协议(网络和数据)可能与待构建系统将支持的协议不同。
3
A forward proxy is typically used when you have internal users of your network trying to accessexternal sites.