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A Secure PC-Based Architecture for Remote Server Management

With the continuous development of the Internet, new network services are brought on-line every day. Despite the service contents provided by the servers are different, a common routine task for every server is daily system administration. Generally speaking, the administrator of a server uses the network or stands in front of the machine to remotely or directly perform the tasks of system administration. It is an important issue on how to provide a convenient management scheme without sacrificing system security. In this paper, we have proposed a new economical architecture with a PC-based firewall and a serial console management scheme to provide the service of remote server management. The architecture is similar to IP-based KVM but the cost is much less. By the use of this architecture, the system administrator does not need to worry about that a server may be infected or intruded before necessary security patches are applied. The system administrators can remotely bring a system on-line and then apply system patches or windows updates without putting the system security into jeopardy. In order to understand the information flowing in and out of the server, we have also implemented a netflow-based monitoring system to proactively detect network anomalies.