There seems to be a known bug with the Gnome Network Manager included with the Ubuntu 8.10 release that resets any static ip address settings that are set manually when the system is rebooted reverting back to a DHCP setup. These steps will remove the Gnome Network Manager and help you manually setup the required files for your static network configuration.

The DNS servers of my ISP is always behaving erratically. The DNS look up times are abysmally large and some times I get an address not found error while browsing. On ubuntu/debian systems the DNS servers are specified in /etc/resolv.conf. I tried to edit /etc/resolv.conf and put open dns servers as default DNS servers.

If you want to setup a Static IP Address in your system , Modify the file /etc/network/interfaces. If your First Ethernet Interface is eth0 ,

ARP (Address Resolution Protocol) is a protocol used in local area networks (LAN).If a computer needs to send a packet to another machine within the same local network, the IP address and MAC address (Media Access Control) related to the network card on the receiving machine determine the allocation.

If you are a Network Administrator some time you need to assign more than ONE ip address (second ipaddress) to your network card of Ubuntu machine. For this you need to edit the /etc/network/interfaces file by adding the following lines . See the example below and make change according to your ip address settings

NetworkManager program provided in Ubuntu 8.10 is mainly aiming to provide a simplified Internet connection. NetworkManager is best for home users and simple internet users. If you want to use a fixed IP address it makes problem, the static IP setting will be work only upto the next restart. After reboot you can't see the Fixed IP. It will reset to DHCP.

With the setup as described, you'll have to know the IP address your server is running on to connect. If you have a static IP address, that's where you connect.

I thought it would be handy if I could come up with a script to keep track of my current IP address for me. The first step is to find out my current IP address. In my case, I have a SpeedStream 5100 DSL modem. The address of the modem on the local network is 192.168.0.1 and entering that address into a web browser will bring up a page that looks like this.

I could use the IP address of the host where the site is, right? Well, no. It's a shared hosting so requests have to be made by name.