When it comes to networking, Cisco is the single biggest supplier of hardware in the world. In other words, every aspiring network engineer needs to understand Cisco technology. One way to prove your ...

Need a jump start on Unix networking? Whether you're working on your home network or setting up systems at work, here are some basic Unix commands and insights that might prove helpful. Once upon a ...

Figure 1. A screen capture of an exchange between a desktop computer and a DHCP server. Click here to see an enlarged diagram. Frequently, all that is required to establish a connection to the ...

Networks are starting to become a critical part of many industrial installations. Production equipment increasingly incorporates diagnostics that are available over an Ethernet, and ever more factory ...

For network admins and network security professionals, one of the most important tools to learn to use is Wireshark (formerly Ethereal), a free and open source network analyzer/packet sniffer software ...

Virtual private networks, or VPNs, tend to get a bad rap as being difficult to set up, erratic in performance and a questionable deterrent against possible security breaches. All of which, ...