A smartphone can be a key part of a network troubleshooting toolkit. When maintenance is required, network pros most often make changes from a desktop PC or laptop. But an iPhone or Android phone can ...

The bits in the mask identify both hosts and subnets. The more hosts, the fewer subnets; the more subnets, the fewer hosts can be individually addressed. These bits become a tradeoff based on the ...

Last June, the PCI Council substantially upped the ante on merchants who use the Internet to store or transmit credit card data. Prior to June merchants who used the Internet (or a public network in ...