When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Figure 1. A screen capture of an exchange between a desktop computer and a DHCP server. Click ...

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 ...

Network and computer systems administrators are responsible for the day-to-day operation of an organization's computer networks.