Paralleling the growing popularity of notebook computers in recent years has been a rise in cases of virus infections involving connections of infected notebook computers brought to the work site from outside. This is a source of vulnerability because PCs infected outside the company but connected to the in-house network may not be quarantined by firewalls, mail servers, or any other security countermeasures. The mere presence of terminals with low security levels on a network increases network vulnerability, even if such terminals are not actually infected. To protect the network against problems caused by these PCs, Hitachi Cable has created an effective PC quarantine LAN solution implemented in conjunction with the Apresia authentication switch and NOSiDE, an integrated PC resource management solution. Whenever a new PC logs on to the LAN for the first time, it is connected to the network quarantine area and diagnosed for security by the NOSiDE configuration management server installed in the quarantine area. Here, the PC is comprehensively examined for virus countermeasures and for the presence of known security loopholes. Only PCs that pass this inspection are allowed to connect to the in-house network.
*6: NOSiDE is a registered trademark of NTT Data Corporation. |
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