Cambridge Computer’s vxUtil is a very practical program for the reviewer, especially since he’s a systems engineer. This program lets you control and monitor various computer networks on the go, making it an essential tool for people who have home or office networks set up. The program lets you perform tasks such as pinging IP addresses, resolving DNS, Trace routes, WHOIS lookups, generate passwords, and scan open ports. You can also use the included subnet calculator feature if you want to strategize your network’s addressing scheme. In fact, this program works well for both vast and minute sized networks. You can also set your mobile device’s internal clock as the absolute time for all your networks. The reviewer recommends this program, even for people who aren’t systems engineers. You can use vxUtil to confirm the quality of your GPRS or EDGE connections. The best part about vxUtil is that it has a free edition for users who simply want to use it with their home networks.