Does anyone have some good links for modern best practices? Internally we have some disagreement about whether we should allow or block ICMP and traceroute (well, UDP, since the ICMP policy would ...

The ICMP protocol facilitates the use of important administrator utilities such as ping and traceroute, but it can also be manipulated by hackers to get a snapshot of your network. Learn what ICMP ...

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 ...

I'm looking for some clarity on the inner workings of traceroute and ping record-route. Here's my understanding.<BR><BR>Traceroute sends UDP (ports 33434-33534) packets with a destination IP as ...

Network tools are essential for solving issues with a computer network that is not performing as it should. There are quite a few things can do to aid in returning a network to its rightful state, and ...

Today, researchers have disclosed their findings on a novel Windows malware sample that uses Internet Control Message Protocol (ICMP) for its command-and-control (C2) activities. Dubbed "Pingback," ...