Static IP configuration in Ubuntu

Hi

Am trying to configure static IP in ubuntu

I ve edited /etc/network/interfaces file as

# The primary network interface
auto eth0
iface eth0 inet static
address 9.123.456.789
netmask 255.255.255.0
network 9.123.0.0
broadcast 9.123.456.255
gateway 9.123.456.1

And I have issued

sudo service network restart

I tried with

sudo /etc/init.d/networking restart

But my changes are not reflected in ifconfig -a command ..
Please help !!

That looks about right.
Try checking your /etc/resolv.conf file if there are any unwanted entries.
or bring the interface down and back up

do you have 2 network cards in the server? maybe your not plugged into eth0

remember that under ubuntu, Network-manager manages networks. If you want to do it manually, first stop network-manager:

sudo service network-manager stop 

then check your config in /etc/network/interface, then restart networking service:

sudo service networking restart

ping the stack, if ok, then the gw, if ok, any ip over internet.

---------- Post updated at 10:49 AM ---------- Previous update was at 10:46 AM ----------

in your config, you may add dns information, that can help:

[...]

dns-nameservers <dns ip>