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What protocol works on all layers of OSI?
Learn what protocol, if any, works on all layers of OSI in this expert answer.
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How to block some users from the Internet while allowing others
Learn how to block certain users from the Internet while allowing others on the same LAN in this expert response with enterprise security expert Michael Gregg.
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Are open source tools safe to use?
See how safe managing and troubleshooting open source tools are in this expert response with security expert Michael Gregg.
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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.
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How do routers and switches differ in the OSI model?
Learn the difference between a switch and a router in relation to the OSI model in this Ask the Expert.
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What standards specify flame retardant cable jackets for Europe?
Learn what standards specify the correct flame retardant cable jackets for Europe, in this expert response with Carrie Higbie.
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What licenses allow user access to applications on the server?
What licenses allow user access to the GP application on the server? Find out from infrastructure and project management expert Carrie Higbie.
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Should I CISSP certify to be well-rounded or specialize in Checkpoint?
Is it better to be well-rounded or have a specialty? Tittel helps you decide between CISSP certification and specializing in Checkpoint in this expert response.
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Why do networking professionals earn lower salaries than other IT professionals?
If networking professionals tend to earn lower salaries than other IT professionals, what can you do to change that? Our training and certification expert explains how you can earn a higher salary.
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Are Linux Professional Institute (LPI) certifications good for a networking career?
See if Linux Professional Institute (LPI) certifications will further your networking career in this expert response with our training and certification expert, Ed Tittel.
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Do sandstorms, too much heat, and strong winds affect Wi-Fi connections?
How much does weather affect Wi-Fi? Wireless networking expert Lisa Phifer explains how sandstorms, too much heat and strong winds might affect your connection in this Q&A.
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Where should I place my cable modem?
Learn how cable modem placement will affect your wireless network connection, in this expert response with Lisa Phifer.
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How do you change a non name brand PC with Windows XP into a wireless client or access point?
Learn from wireless expert Lisa Phifer, how to change a non name brand PC with Windows XP into a wireless client or access point.
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What is the difference between VPN and VPN pass-through?
In this Q&A, our VPN expert describes the difference between a basic VPN and VPN pass-through, a feature often found in small business Internet gateway devices.
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How can I persuade my boss from letting users have administrative access to their machines?
Does upper management not understand how fuzz is affecting your network? Use this expert response from network administration expert Lindi Horton to convince your boss that users should not have ad...
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To evaluate network management, what criteria is there?
What are the criteria for evaluating how efficient your network management is? Find out in this expert response with Lindi Horton.
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How many wireless devices can connect to an 802.11g access point?
Learn how many wireless devices can connect to an 802.11G access point (AP) in this expert response with Lisa Phifer.
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Can I set up a VPN on my wireless router?
Learn about the difference between functions in a consumer and pro-sumer cable modem and how to set up your VPN on your wireless router, in this Q&A.
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How can I get our VPN to work on Windows Vista?
VPN expert Sampath Ramaswami explains how to get a Virtela VPN to work on Windows Vista in this response.
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To set up a VPN server, do you need two NIC cards?
To set up a VPN server, do you need two NIC cards? Find out the answer to this and how to fix disconnects in this Q&A with Sampath Ramaswami.
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BYOD security: Which VPN is best for you, IPsec or SSL?
By 2016, 40% of the workforce will be mobile. IPsec VPNs are being widely discussed for BYOD security. But should we also be talking about SSL VPNs?
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Why should you care about SDN?
Expert Jim Damoulakis weighs in on the potential of software-defined networking, or SDN, and why you should care.
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Can you really have security, convenience and BYOD?
Employee-owned devices can seriously undermine security. But bring your own device is probably here to stay. So what should IT do?
Network Management Strategies for the CIO