Network Management Strategies for the CIO
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How can I calculate perimeter firewall throughput?
Learn how to use a capture filter in Wireshark, to determine network throughput on a firewall by monitoring incoming packets and using a simple equation to find a baseline throughput, from our expert Michael Gregg. Ask the Expert
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Network security risks multiply when enterprises begin outsourcing
Network security risks of outsourcing tech jobs worry IT executives, according to a new survey. Without the right protections, outsourcing could expose companies to a network security breach. Article
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Is there a way to trace my stolen laptop computer?
Learn some useful preliminary techniques on how to safeguard your computer should it get stolen and make it recoverable using certain trace software, from our expert Michael Gregg. Ask the Expert
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How do I find the application on my network that's dropping packets?
Learn how to use Wireshark to trace dropped packets being sent from a PC on your network or an external application/service and secure SMTP ports, from our expert Michael Gregg. Ask the Expert
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Integrating NAC with network security tools
Integrating network access control solutions with other network security tools and network inventory applications can produce a more complete user and machine identity to strengthen every policy across the network. Book Chapter
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Where can I find a sample security audit report? How can I run my own?
IT organization security audit reports aren't for circulation. Our network enterprise security expert explains how professionals can sample a technical report by running their own. Ask the Expert
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Using nmap for Linux administration and security
The open source tool nmap is ideal for network troubleshooting, scanning and auditing. The tool can be used to identify devices on the network as well as the services running on them. It can also identify advanced information, such as operating syste... Tip
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The firewall remains the network traffic cop, but its role is changing
Even as mobile workers connect to the network from a wide variety of devices, the network firewall remains the bedrock of network security. But the role of the firewall is evolving from perimeter defender to gatekeeper. Article
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Troubleshooting VLANs: How to monitor 802.1q tagged traffic
When troubleshooting a virtual LAN (VLAN), learn how to monitor 802.1q tagged traffic within a network in this advice from our routing and switching expert. Ask the Expert
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Poor data-loss prevention practices almost cost Intel a billion
While Intel's network security logged meticulous employee access data, red flags weren't raised to stop one potential thief until he had made off with the data. Article