IN THIS CHAPTER
Using ethtool and mii-tool to work with network interface cards
Getting network statistics with netstat
Starting network devices
Viewing Ethernet information with ifconfig and ip
Managing wireless cards with iwconfig
Checking DNS name resolution with dig, host, and hostname
Checking connectivity with ping and arp
Tracing connections with traceroute, route, and ip
Watching the network with netstat, tcpdump, and nmap
Connecting to a network from Linux is often as easy as turning on your computer. Your wired or wireless network interfaces should just start up and immediately let you connect to other computers on your local network or the Internet. However, if your network interface doesn't come up or requires some manual setup, there are many commands available for configuring network interfaces, checking network connections, and setting up special routing.
This chapter covers many useful commands for configuring and working with your network interface cards (NICs), such as ethtool, mii-tool, and ifconfig. More specifically, it covers ways of configuring wired and wireless Ethernet connections. With your hardware connected and network interfaces in place, the chapter describes commands such as netstat, dig, ip, and ping for getting information about your network.
When you first install Ubuntu, the installer lets you configure any wired Ethernet cards attached to your computer with the use of a DHCP ...