Basic Network Troubleshooting

The following command lines allows for basic insight to the network configuration interface and the means of troubleshooting your network interfaces.

1. ifconfig > allows the operating system to setup network interfaces and allow the user to view information about the configured network interfaces. As well as indicating if an interface is receiving (RX packets) and transmitting (TX packets) data. You could also view the network settings for a particular interface by:

> ifconfig "interface_name", for example: > ifconfig eht0, which will display Ethernet adapter installed on Com.X.

2. ifup > brings a network interface up, making it available to transmit and receive data, for example:

> sudo ifup eth0 , will bring up interface eth0.

3. ifdown > takes a network interface down, placing it in a state where it cannot transmit or receive data, for example:

> sudo ifdown eth1, will bring down interface eth1.

4. traceroute > show several details about the route that a packet takes from the device to a network host, for example:

> sudo traceroute -i eth1 server, which uses eth1 to trace route that packets take between the server.