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netstat
Netstat is a common command line TCP/IP networking utility available in most versions of Windows, Linux, UNIX and other operating systems... (Continued) Definition
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Network analysis -- Enhancing security assessments
Network security assessment doesn't have to rely on expensive automated tools. In this tip, learn how to use data from freely available tools to produce a comprehensive view of network security. Tip
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Are there network monitoring tools for Layers 1 through 7?
Learn which network monitoring tools can monitor your network from Layer 1 through Layer 7. Ask the Expert
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Using a packet sniffer for network packet analysis
A packet sniffer may seem like a humble addition to a network professional's toolkit, but when used correctly, packet sniffers (also known as protocol analyzers) can home in on any number of network problems. "Practical Packet Analysis: Using Wiresha... Interview
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What core network security items are needed to secure networks?
Learn which core network security items, facilities and tools are needed to secure a particular network in this Q&A with Michael Gregg. Ask the Expert
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How can I secure our data from hackers?
Enterprise security expert Michael Gregg answers how to secure data from hackers, in this expert response. Ask the Expert
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firewall
A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks. Definition
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OSI -- Securing the stack
Secure your network with our OSI model reference that links to all the tips in our "OSI -- securing the stack" series by security expert and author Michael Gregg. The series is based on his book, "Hack the Stack." Tip series
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Why has the terminal server ended my connection?
Find out reasons a terminal server might end a connection, in this Q&A with Chris Partsenidis. Ask the Expert
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port mirroring (roving analysis port)
Port mirroring, also known as a roving analysis port, is a method of monitoring network traffic that forwards a copy of each incoming and outgoing packet from one port of a network switch to another port where the packet can be studied. Definition
Network Management Strategies for the CIO