LinuxQuestions.org - can only change network with GUI, not CLI

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can only change network with GUI, not CLI

Why is it that when I say

ifconfig eth0 10.10.0.3 netmask 255.255.0.0
/etc/init.d/network restart

it doesn't connect to the network (can't successfully ping other machines) but (in redhat) when I make the same changes with the GUI "network device control" it then connects to the network.

What else do I have to do beside the two above commands so I am not dependent on the GUI?

The network init script most likely reads its settings from a file. Use ifconfig eth0 up instead of running the init script.

Håkan

Stop the network with the command: /etc/rc.d/init.d/network stop or
service network stop
Then use the -a option in ifconfig
For example: /sbin/ifconfig -a eth0 192.168.1.2 netmask 255.255.255.0
Verify the settings with /sbin/ifconfig eth0
Add the default gatway: /sbin/route add default gw 192.168.1.1
Verify the gateway setting: /sbin/route.
The line beginning with default should have your gateway under the gateway column.

You can edit / check the settings in the files

Code:

/etc/sysconfig/network-scripts/ifcfg-eth0



        DEVICE=eth0

        USERCTL=no

        ONBOOT=yes

        BOOTPROTO=none

        BROADCAST=192.168.1.255

        NETWORK=192.168.1.0

        NETMASK=255.255.255.0

        IPADDR=192.168.1.2



and  /etc/sysconfig/network.



        NETWORKING=yes

        HOSTNAME=comp1.mydomain.com

        FORWARD_IPV4=yes

        GATEWAYDEV=

              GATEWAY=192.168.1.1

Don't forget to restart the network with the command: /etc/rc.d/init.d/network start or
service network start