How to change to static ip address on my ubuntu server

[alfamuzjak]

Hi,
Im running ubuntu server 10.10 on my wirtual mashine at home.
For now i have few service installed and configured:apache with phpand mysql support,ftp,phpmyadmin..
My ip address is not static, i tryed to configure by following some guide but without success.

First i edit this in /etc/network/interfaces (changing dhcp to static

# The primary network interface
auto eth0
iface eth0 inet static
address (adding some random ip address - lets say the address which is granted from previous dhcp configuration)
netmask 255.255.255.0
broadcast -.-.-.255
network -.-.-.0
gateway my.gateway.address.

Then i edit /etc/resolv.conf

nameserver (changing to my.gateway.address.10)
domain localdomain #
search localdomain # those 2 not changing

then in some guide it says to remove dhcpclient if it's installed.. so i enter this:

sudo apt-get remove dhcp-client

then reboot network adapter with ( ~networking restart) or just reboot server.
So the address and configuration is stored, but i cant for example ping www.google.com
...dont have internet conection and i cant connect with browser to test my ftp or apache(...dont recognize address)

I think im something doing wrong with nameserver,domain and search (/etc/resolv.conf - in global)
This all is a bit confusing for me...

Can someone explain me where is my mistake and help me configure static ip for my server

[bsntech]

This is the configuration I have in my /etc/network/interfaces file on one of my desktop PCs:

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.254.1
netmask 255.255.255.0
network 192.168.254.0
broadcast 192.168.254.255
gateway 192.168.254.254

The /etc/resolv.conf file should be something like this:

nameserver 192.168.254.254

Ensure you use an IP address. If you don't know of any name servers to use, use the Google name server of 8.8.8.8 - but it will only work if your ISP allows you to connect out on port 53 UDP.

After updating that, go ahead and just do a full reboot and see if it makes a difference. When you do an:

ifconfig

The information for eth0 should show up with the info you provided in the /etc/network/interfaces file.

Brian S.
BsnTech Networks
http://www.bsntech.com

[alfamuzjak]

My interfaces configuration:

auto eth0
iface eth0 inet static
address 192.168.23.130
netmask 255.255.255.0
network 192.168.23.0
broadcsst 192.168.23.255
gateway 192.168.0.1  # i use gateway which was standing at   lo paragraf of ifconfig command...that is address of my router...

/etc/resolve.conf contain only:
nameserver 8.8.8.8 (i delete lines with 'domain' and 'search')

after pinging google i got:

ping: unknown host www.google.com

[sergio-bobillier]

ping: unknown host www.google.com

This means that the DNS server couldn't be reached. If you have a Router most likely it will have an embeded DNS server try changing your resolv.conf and set your router's IP as DNS Server like so:

nameserver 192.168.0.1

[bsntech]

In addition - to be sure that you actually do have Internet connectivity, see if you can ping an IP address. This way it isn't using DNS to do a lookup - but it is fully skipping this step.

So see if you get replies if you do a "ping 8.8.8.8". This will ensure that your /etc/network/interfaces file is setup properly and that you have Internet access.

If you can do a ping to 8.8.8.8, then your ISP may be blocking outgoing port 53 UDP.

Brian S.
BsnTech Networks
http://www.bsntech.com

[alfamuzjak]

Nothing!
I dont know what to do, its insane, i cant have static server.
any advice?!

P.S.Thank you for trying to help me

[alfamuzjak]

ping 8.8.8.8

connect: network is unreachable

[wormyblackburny]

Ummm, if your computer is on the 192.168.23.0 network, how can your gateway be the 192.168.0.1 network? Your gateway is incorrect, point it to 192.168.23.0 or 192.168.23.254 (depending on your routers configuration). The router will handle the forwarding to the .192.168.0.0 network if it is indeed connected to that network....

[alfamuzjak]

Didn't quitely understand, you are saying what...to change:
network to 192.168.0.0, or to change gateway to 192.168.23.1/0/254 in /etc/network/intefaces?

Sorry but i tryed so many combination and have dizzyness from numbers:/

P.S. how then virtual mashine and my comp can ping each other - if they arent on same network.. - try to ignore this if u think it is stupid

[wormyblackburny]

Actually, I take that back. Sounds like you have just a single router so your static ip needs to be in the 192.168.0. (1-254) range and gateway needs to be 192.168.0.0 as well as nameserver needs to be 192.168.0.0 (unless you are running a dns server)