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Archive for May 17, 2010

Is your Network Intrusion Detecton System blind in one eye?

If your network administrator/security guy implemented more than just the basic security for your network, you’ve got a Network Intrusion Detection System (NIDS) connected to your network.  A NIDS inspects network packets looking for indications of hostile activity, such as exploit attempts, malicious email, port scanning, and protocols associated with specific Trojans. When implementing a NIDS, there are several different options for connecting it to the network.  A common option is to mirror one or more ports on a network switch to send a copy of each packet to the NIDS. This can be accomplished in several different ways:

Network

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