Change Ubuntu System from DHCP to a Static IP Address
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open the /etc/network/interfaces file.
sudo vi /etc/network/interfaces
If you are using DHCP for your primary network card which is usually eth0, you will see the following lines
auto eth0
iface eth0 inet dhcp
As you can see, it’s using DHCP right now. We are going to change dhcp to static, and then there are a number of options that should add and here is the example and you can change these settings according to your network settings.
auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
Restart the neworking service using the following command
sudo /etc/init.d/networking restart
You can also view (and change) your connection w/ ifconfig. See man pages for options. ifconfig will provide current detail about your eth0 NIC before changing.
What if I have network-manager installed (everything is commented out in /etc/network/interfaces except lo)
How can I set up a static IP?
Thanks
This is a known problem right now with wireless/wired connections. You can read more about the coming solution for Feisty here: https://wiki.ubuntu.com/NetworkRoaming
if you use nano then you should include the -w option so the first line does not auto wrap & thus cause errors on restart.
Hi,
I have installed ubuntu server 7 on my box and connected to my router speedport 5020. As long as I use dhcp client, the connection to the internet works fine.
I would like to use the box as file server with ssh, so I need a static address to it.
The router assignes by dhcp 192.168.2.100 – 192.168.2.197, so I gave to my box the static address ending .198
I edited my /interfaces and it looks like this
#######################
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.2.198
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
gateway 192.168.2.1
######################
moreover I have for my resolv.conf
################################
search Speedport_W_502V_Typ_A
nameserver 192.168.2.1
################################
anyway I cannot ping the ouside world, and from computers in the same network I cannot ping mx box.
if I ping from my box a computer in the network I get “Destination host unreachable”
It seems to me that I have done everything as in the instructions above. Does anybody any Idea of what can be wrong ?
I am quite a beginner so I am compeltely lost …
Regards
Marco
How can I find out my own credentials to replace the address and broadcast?
nvm… figured it out.
I really need help
after changing my IP setting
sudo /etc/init.d/networking restart just doen’t work
Please advise
I really need help
after changing my IP settings
how to i save and restart.
i tried using
sudo /etc/init.d/networking restart but it does not restart
pls advice me if i doing the right thing…
Thanks for this!
Worked a treat 😀
JAM
Documentation is good
if you’re having problems with
sudo vi /etc/network/interfaces
try
sudo nano /etc/network/interfaces
I need to set a internet static ip on ubuntu. Unfortunately, my connection pass by a router that have a public ip on internet. when i set public static ip, y ubuntu computer can’t go on internet. What’s the way to resolve? Thnx
@Cesco
you need to make sure which DNS servers you are using in your ubuntu system
you need to edit the following file
sudo nano /etc/resolve.conf you need to add your isp DNS servers with the following syntax
nameserver X.X.X.X
nameserver X.X.X.X
X.X.X.X – Your ISP DNS servers
save and exit the file
I’m at the start point! I’m connected with wlan0 interface configurated with an internal ip, and wlan0:0 configurated with an external ip. But network is unrecheable. 🙁
Hi, I’m trying to set up a static IP to get Azureus working properly
Using sudo nano /etc/network/interfaces
I added the following to my /etc/network/interfaces:
auto lo
iface lo inet loopback
auto wlan0
iface wlan0 inet static
adress 192.168.2.200
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
gateway 192.168.2.1
then restart using
sudo /etc/init.d/networking restart
During this process it gives me the following:
* Reconfiguring network interfaces…
Don’t seem to be have all the variables for wlan0/inet.
Failed to bring up wlan0.
I don’t understand what variables are missing…
I tried the same configuration with eth0 and it gives me a similar message
Thanks in advance to anyone who could shed some light on this problem
Jess
Hi again, I came across an alternative solution!
Just use Wicd instead of network manager, as network manager doesn’t support static IPs.
To get Wicd just follow the instructions here
Hope that helps
Jess
Jess – in your config you’ve mispelt address “adress”. perhaps this is the source of yur original problem
hi i tried to fix my connection that way but i didnt succed .. i tried in kde 2.4 im newbie .. please help i put the ip netmask gateway and dns corectly but does not connect .. what should i do next .:( i tried modify that document .. but dont work .. please help .. and please email me whit some answers
sorry it was kde 4.2
I had some trouble getting the settings to work,
the error I made was to omit the line “auto eth0”, it is essential!
The lines network and broadcast can safely be omitted, they are calculated automatically from the address and netmask values.
Leave “auto eth0” but disable it.
Create a new wired with the MAC from “auto eth0” and all info.
awesome. worked a treat! now i’ve got my local server with no conflicts
Worth mentioning here is that you can specify the DNS server IP#s from opendns.com in /etc/resolv.conf if you want. Alternately, you could leave the nameserver IP# in /etc/resolv.conf as your router’s IP#, and using static DNS server IP#
I have found opendns.com’s DNS servers to be much faster than many ISP’s, and my ISP would typically do service on their DNS servers over the weekend and our home router and it would be slow in relaying the changing DNS server IP#s
It does not work with wifi DNS router.
Your device must coexist with other hardware and applications. ,
I cloned the recipe and tried it… only to find out that I can no longer reach the network. Then I added the lines
dnsserver X.X.X.X
to the ones above, and the static IP worked 🙂
thanks a lot 😀
For those struggling with network-manager. Just remove it.
sudo apt-get remove network-manager
Using Wicd was an excellent tip. Lovely little utility. Thanks.
Please let me k now after edit the following
sudo vi /etc/network/interfaces
how can I save that.
Please…
I am a beginner