Virtual private networks (VPNs) are a straightforward idea. The trick comes in knowing what type of VPN to use when. Let’s consider several different types, including client-based VPNs and network-based VPNs, and see where they fit.
One of the most critical network links in any organization is the link to the Internet. Here’s how to configure a redundant Internet connection to help ensure there’s at least one working connection at all times.
You might be tempted to upgrade your network to 10Gbps Ethernet because it’s faster. And faster is better, right? But it’s a good rule of thumb to never do anything with technology “just because.” Think about whether you really need that extra bandwidth and whether your cabling and budget supports it.
OSPF is one of the few network protocols you can count on being available just about anywhere. Learn the principles of OSPF protocol, and how to get started with OSPF interfaces, areas, and commands in this intro guide.
Don’t neglect your wiring closet switch — it’s a critical network element that connects your users to the rest of your IT infrastructure. Learn how to choose a good location, design an effective uplink, plan for resiliency and more.