Recently, I noticed that there has been a surge in ICMP packets between some of my Active Directory controllers and Exchange servers. Virus scanning proved that the servers were clean. Is there any ...

* Dr. Internet columnist Steve Blass talks about an open source integrated library system * Help Desk columnist Ron Nutter explains why a high level of ICMP packets between AD controllers and the ...

ping is a diagnostic tool used for verifying connectivity between two hosts on a network. It sends Internet Control Message Protocol (ICMP) echo request packets to a remote IP address and watches for ...

BlackNurse is the name of a recently discovered network attack that can crash firewalls and routers via ICMP packets, known by most of us as "pings." The attack came to light after TDC, a company that ...