October 17, 2008, 7:36 am

You can do it manually from the command line, assuming you have network tools for linux installed. Know the name of your wireless connection: mine is ath0, so I’ll use it in this example, but you have to replace it when you type these commands with the name of your wireless connection. Note that most or all of these commands require you to be in root, so use sudo or su, or login to root. First startup the connection with ifconfig:
Continue reading ‘Connect to a wireless network with the command line’ »
May 30, 2008, 9:38 am

Computers may be assigned a static IP address or assigned one dynamically (via DHCP). Here I will explain the steps needed to assign an IP address to your NIC.
Choose one of the following methods:
Command line :
/sbin/ifconfig eth0 192.168.1.3 netmask 255.255.255.0 broadcast 192.168.1.255
GUI tool : You can use the GUI tool /usr/bin/neat – Gnome GUI network administration tool. It handles all interfaces and configures for both static assignment as well as dynamic assignment using DHCP.
Continue reading ‘How to Assign an IP address’ »
May 30, 2008, 9:37 am

There are different ways of installing a network card in linux – and that too depending on the linux distribution that you are using. I will explain each one of these methods here.
Continue reading ‘How to install a Network card in linux’ »
May 30, 2008, 9:33 am

In linux, you can change the hardware (MAC) address of your machine.This is how it is done.
# ifconfig eth0 down
# ifconfig eth0 hw ether 00:80:48:BA:d1:20
# ifconfig eth0 up
# ifconfig eth0 |grep HWaddr
Continue reading ‘Clone or Change your MAC address in Linux’ »
May 12, 2008, 5:18 pm

FreeBSD is a Unix-like free operating system. You can install to choose third party software on FreeBSD from the Ports Collection. Many services such as POP3 server daemons, IMAP, etc. could be started using the inetd.
However, networking can be stop or started using special script located in /etc/rc.d/ directory. This directory includes script to stop or start network, and other services such as SSH server.
Continue reading ‘How To Start & Stop Network & Routing Service in FreeBSD 5x, 6x, & 7x’ »
March 20, 2008, 2:36 pm

Networking in general can go so in depth that the mind spins thinking about all there is to know, and there’s plenty of linux tools to deal with the simplest of home networks, to complex networking setups. The Linux+ and LPI certification exams require that you already have a working knowledge of networking principles, but they also expect you have a grasp on some of the basic networking tools in the Linux world. Some we’ll cover today, some of these may or may not be included on a specific exam’s test, but none the less, they will aid you in the Unix world.
Continue reading ‘Some Basic Networking Commands’ »