Inexperienced computer users on the other hand might want to take a look at the Simple Static IP networking tool which allows them to set a static IP address with a few clicks of the mouse button.

A user who wants to set a static IP address needs to select the network adapter from the pull down menu on top of the application’s interface. Simple Static IP will then display the current settings of the network adapter including the assigned IP address, subnet, gateway and DNS server.

A click on Enable Static IP will configure a static IP address for the selected network adapter. It is possible to keep the DNS settings or use the router or the Open DNS servers as the dns server for the network adapter. It is also possible to randomize the static IP address by clicking on the Randomize New IP button in the interface.

Simple Static IP is compatible with the following Microsoft operating systems: Windows 2000, XP, 2003, Vista, 2008.

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Naturally if you have such a server, you have to have the ability to configure that server. One of the configurations you most likely will need to undertake is the configuring of network settings for a static IP address on your headless, GUI-less server. Fortunately, when using Ubuntu Server 8.10 – that is a piece of cake.

In reality there are two files that must be configured and one file that can be configured. The “must files” are /etc/network/interfaces and /etc/resolv.conf. The “can file” is /etc/hosts. We will deal with the former two files in this article. The latter file (a file that deals with local IP to name mapping) has already been covered in my article “Ease Linux Networking with /etc/hosts” here on gHacks.

So let’s first take a look at the most important file, /etc/network/interfaces. Open that file up in your favorite editor (mine being nano).? What you will most likely see is this:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp

The last line is what you need to edit (and add to.) To configure eth0 (your network device) for a static IP address that last line should resemble:

iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
gateway 192.168.1.1

Naturally you will need to change the last three lines to reflect your own networking setup.

Once that file has been edited you can restart your network connection with the command:

sudo /etc/init.d/networking restart

Your Ubuntu Server 8.10 should now be up and running with a static IP address.

DNS

There is one last file you will need to take care of. That file is /etc/resolv.conf. This file is in charge of holding your DNS server addresses. Open this file up in your editor. What you need are two lines:

nameserver 208.67.220.220

nameserver 208.67.222.222

The above example reflects using the OpenDNS servers. Your network will obviously have its own requirements for DNS addresses. Once you have edited that file save it and you’re done (no need to restart networking for the change in DNS addresses to take effect.)

Final Thoughts

That’s it. How simple is it to configure your Ubuntu Server with a static IP address – even when said server is a headless, GUI-less server. Of course there is much more you can do than simple Static IP address configuration, but this just highlights how easy a Linux server can actually be to administer.

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