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220v-600w電加熱管nitially, the industrial control system (ICS) and information technology (IT) system bears little resemblance to the ICS is isolated system, run proprietary control protocol, using a dedicated hardware and software. Now, widely used, low cost of Internet protocol (IP) equipment to replace the proprietary solutions of ICS, but it also increased the possibility of network security vulnerabilities and. Because of using ICS IT solution could improve the ability of enterprise connectivity and a remote access, many factories are using standard computer, operating system (OS), network protocol, the design and implementation of project, so the ICS are becoming more like IT systems. This integration support new IT function, compared with the past ICS, significantly reduced isolation with the outside world, so IT need more security, make sure that these ICS can work reliably. Typical IT system has been designed security solution, to deal with the security hidden danger, but in ICS environment is introduced into the same solution, must also take special precautions. In some cases, in view of the ICS environment requires a new security solution.

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