Vendors would have you believe you need to spend thousands of dollars on protocol analyzer software to troubleshoot Voice over IP (VoIP) networks. After all, voice quality suffers if packets are late, ...

For network admins and network security professionals, one of the most important tools to learn to use is Wireshark (formerly Ethereal), a free and open source network analyzer/packet sniffer software ...

“Promiscuous mode” (you’ve gotta love that nomenclature) is a network interface mode in which the NIC reports every packet that it sees. If you’re using the Wireshark packet sniffer and have it set to ...

Using Wireshark to better understand the Active Directory logon process Last week we looked at a number of introductory issues on using the Wireshark tool. Now I’d like to turn our attention to some ...

The Wireshark Foundation has published the first official certification for the popular open-source protocol analysis tool Wireshark: the Wireshark Certified Analyst (WCA). For this, candidates must ...