The gatesrv server is providing port forwarding for port 50100 to the three servers.

gatesrv服务器为端口50100提供了到这三台服务器的端口转发。

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SSH tunnels using port forwarding.

SSH隧道使用端口转发。

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The forwarding host post is not required to be the same port being controlled by Balance.

转发主机端口不一定要与Balance所控制的端口相同。

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Furthermore, with Samsung's Quick Connect technology, the new HDTV CCTV systems will automatically configure the user's router and manage all required port forwarding so that all remote requests to access live feeds are directed to the appropriate connected camera on the network.

ENGADGET: Samsung Techwin announces two new HD CCTV systems for the security conscious resolution snob