Redhat network interface configuration

Posted on in Categories last updated March 29, 2006

Redhat Linux network interface names start with ethX. First Ethernet network interface name is eth0, second is eth1 and so on.

Login as a root user, use su – command:

$ su –

To list or display more information about network interface type command:

# ifconfig | less

To assign an IP address type following command:

# ifconfig eth0 192.168.1.1 up

To take down network interface type following command:

# ifconfig eth0 down

To configure network card using GUI tool type command:

# redhat-config-network

You can also type command setup and select network configuration from menu:

# setup

If you wish to configure network interface manually then you need to edit files stored in /etc/sysconfig/network-scripts/ directory. For example here is my sample /etc/sysconfig/network-scripts/ifcfg-eth0 file for eth0 network interface:

DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.1.255
HWADDR=00:0F:EA:91:04:07
IPADDR=192.168.1.111
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
TYPE=Ethernet

See also:

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.

10 comment

  1. I just install red hat linux in vmware player and it shows in GUI mode so how i can change in command line interface.

    thanks

  2. HI Dears,

    I am a new user in linux and I install redhat 4 into my machine. but I can not configure the network card. when I tried what you describ here, I found eth0 only and when I used ifconfig comand, there is a message the command is not exist. But I can see the help of ifconfig.

    would you please help me to setup the network card step by step.

    Thank you

  3. Dear Sir,
    i like this command and please more information on my mail id &I am a new user in linux and I install redhat 4 into my machine. but I can not configure the network card. when I tried what you describ here, I found eth0 only and when I used ifconfig comand, there is a message the command is not exist. But I can see the help of ifconfig.& thangs

    would you please help me to setup the network card step by step.

    Thanks & Regards
    Dinesh Rao

  4. Dear sir
    I used Ubuntu but using redhat 1st time, I am getting confused when i want to configure network manually, will u plz help me to configure network using gui interface.

    Thanks & Regards
    Sanjay Manna

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