Remember when the internet was just nascent and telecoms were investing heavily in expanding and upgrading their network infrastructure to support internet connectivity? They laid fiber-optic cables, ...

When we began this series, we discussed the ICMP (Internet Control Message Protocol). This protocol is the basis for two widely used applications, ping and traceroute. In this lesson and the next, we ...

Networking pro Greg Schaffer was stumped when he couldn't solve a connectivity problem and initially told his client it wasn't a networking issue. Then he checked again. Several years ago, a new ...