A software interface between the transport protocol (layers 3 and 4) and the data link protocol (layers 1 and 2) in the protocol stack. The interface provides a protocol manager that accepts requests ...

Unix sysadmins routinely use the “ifconfig -a” command to list network parameters associated with their systems. In particular, they use this command to determine the IP address, netmask and broadcast ...

The ifconfig command can tell you a lot about your Unix server’s connection to your network and the role it’s playing in both generating and receiving network traffic. The newer ip command does much ...

Erik Eckel explains how to use three common commands to find networking issues and troubleshoot them. The Mac’s Systems Preferences Network applet enables configuring network settings, while the ...

With the Windows 10 October 2018 update release, Microsoft had quietly added a built-in command-line network packet sniffer called Pktmon to Windows 10. Since then, Microsoft has added a few more ...

The phrase "sniff the network" may conjure Orwellian visions of a Big Brother network administrator reading people's private email messages. Before anyone uses Wireshark, an organization should ensure ...