Features

Features

• Combining 802.1X and VLANs for WLAN authorization

  Many WLAN owners know that 802.1X/EAP makes it possible to authenticate individual wireless users. But did you know that 802.1X can also be used to funnel wireless traffic onto VLANs, enforcing user or group-based permissions? This tip explains how ...  Continue Reading

• Choosing the right flavor of 802.1X

  Which of the nearly 50 defined EAP Types would work best in your WLAN? In this tip, we compare the most popular EAP Types used with 802.1X, authentication methods that can be supported by each, known vulnerabilities and suitable usage environments.  Continue Reading

• Wireless attacks, A to Z

  In our buzzword-filled industry, wrapping your arms around wireless attacks and their potential business impacts can be tough. This tip tries to bring order to this chaos by providing a reference list of attacks against 802.11 and 802.1X, ...  Continue Reading

• Lesson 4: How to use wireless IDS/IPS

  In Lesson 4 of Wireless Security Lunchtime Learning, you'll walk away with an understanding of the value of wireless IDS/IPS -- even if your organization doesn't support a wireless LAN. Also learn how to choose a WIDS for your environment and how to...  Continue Reading

• To block or not to block: Rogue containment methods

  Wireless network monitoring systems are quickly moving from detection alone to detection and prevention. In particular, many now provide options to "block" rogue devices, preventing wireless or wired network access. This tip explores how these ...  Continue Reading

• Using your WIDS to monitor WLAN performance

  "Wireless intrusion detection" -- the very name brings to mind security. But many WIDS products can also be used to monitor WLAN performance, providing valuable insight for trouble-shooting, fine-tuning, and usage planning. This tip explains how to ...  Continue Reading

• Fighting wireless DoS attacks

  Despite recent 802.11 security advances, WLANs remain very vulnerable to Denial of Service attacks. While you may not be able to prevent DoS attacks, a WIDS can help you detect when DoS attacks occur and where they come from, so that you can track ...  Continue Reading

• Wi-Fi vulnerability assessment checklist

  Vulnerability assessments can help you find and fix WLAN weaknesses before attackers take advantage of them. But where do you start? What should you look for? Have you covered all the bases? This checklist will help to answer these questions.  Continue Reading

• Building a wireless LAN proxy server

  Our router expert, Michael Martin, walks you through building an http proxy server for a wireless LAN with a Linux base.  Continue Reading

• Best practices for network management in the non-profit world

  Discover how the Washington, D.C.-based National Parks Conservation Association developed their network management solution to ensure network uptime and availability.  Continue Reading

• The importance of IP address management

  IP addresses are an integral part of any corporate network, and companies large and small are consuming them faster with more applications and devices than ever before. Overlooking the importance of getting a handle on IP addresses can prove ...  Continue Reading

• Will becoming an A+ certified technician help you?

   Continue Reading

• Subnetting to increase performance

  There comes a time when a network becomes too big and performance begins to suffer as a result of too much traffic. When that happens, one of the ways that you can solve the problem is by breaking the network into smaller pieces using subnets.  Continue Reading

• Router and firewall configuration

  ITKnowledge Exchange member "stephang" had a question about the balance between blocking packets and enabling NAT on his router and on his firewall. Fellow forum members chipped in with their advice; check out what they had to say.  Continue Reading

• Commonly overlooked security hazards

  Security expert Dave Piscitello covers the ten most commonly overlooked security hazards and easy ways to prevent them from placing your network at risk.  Continue Reading

• The network administrator's survival guide

  This piece from contributor Douglas Chick presents a humorous look at surviving in your role as a network administrator.  Continue Reading

• Most popular viruses and hacking tools

  Here are 2004's most popular hacker tools, viruses, remote tools, adware, spyware, Trojans and worms.  Continue Reading

• Network Security Principles and Practices: Secure LAN switching

  This book excerpt offers steps you can take to make Layer 2 environments and switches more secure, including permit lists, protocol filtering and VLANs.  Continue Reading