network interface

One of the first things I do upon installing a Linux distribution is put the Network Monitor applet on my GNOME panel.

Watching the blue lights twinkle on and off makes me aware of network traffic. But if you want more details about what's happening on your network, such as which application is hogging bandwidth or what each network interface is...

Linux acts in an unexpected way when multiple network interfaces are plugged into the same network.For example, pinging one interface and unplugging another results in ping failures in the first interface.This article puts ARP under the microscope and attempts to make sense of this strange behaviour- a must read for those with multi-homed machines.

LinuxPlanet: "With the ip command you can assign multiple network addresses to a network interface, without creating aliases like ifconfig requires."

Normally when you add a new IP to a network interface in a RedHat based system you create a file ifcfg-eth0

First thing I’ve discovered with Mandriva 2008.1, is that it does in fact have quite a nice wizard to get bluetooth dial up networking going.

You go to the Mandriva control panel, choose Setup a new network interface, and select “Bluetooth dial up networking”.

Debian has a customization to udev that will keep network interface names persistent after hardware changes and reboots.

Normally this is what you want and you will not care about this, but there are cases where this can be very annoying and we just have to disable it.

TCPDump is a tool for network monitoring and data acquisition. It can save lots of time and can be used for debugging network or server related problems.

Tcpdump prints out a description of the contents of packets on a network interface that match the boolean expression

Linux.com: "Vyatta can turn any 32-bit x86 machine with at least one network interface into a network appliance that handles routing, firewall, and VPN tasks.

The company released Vyatta Community Edition 4 in April, with improved scalability and feature enhancements.

Large enterprises now have a low-cost alternative to proprietary hardware like the Cisco 7200."

Sometimes you have to change the Maximum Transmission Unit (MTU) on a network interface in Mac OS X to fix or debug a connection problem.

You can dive into the command line using ifconfig:ifconfig en0 mtu 1458Or you can change it in the advanced settings of the Ethernet interface, but for other interfaces, you have to use ifconfig.

Well, not anymore.

slurm started as a pppstatus port to FreeBSD. As I ripped off several functions here is an overview of the features: * realtime traffic statistics divided into incoming and outgoing * optional combined view * can monitor any kind of network interface (testers welcome!) * shows detailed statistics about the interface.

* it’s themeable