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 ...

Hands-on with the Pktmon network monitor Compared to a network monitor with a graphical user interface, the command-line interface of Pktmon takes a bit more time to get used to it. Before you can ...

The ethtool utility on Linux allows you to view and change some of your network-driver and interface-card settings, especially for wired devices. These include their speed, whether the interface uses ...

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 ...

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 ...

Network bottlenecks and downtime can ruin an IT manager’s day. The right arsenal of skills and tools can help you identify and fix the issue quickly. Here are some basic techniques and tools to help ...