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Old 03-21-2010, 05:50 PM   #1
Stuart B
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Registered: Feb 2010
Location: Yorkshire, UK
Distribution: Ubuntu 9.10
Posts: 7

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Question Lost internet recently - Wednesday's Ubuntu 9.10 auto upgrade?

I run an e machines laptop with Windows Vista and Ubuntu 9.10 side by side (choose on boot), just using windows for accessing my office PC remotely.
I used the internet normally on Wednesday, and upgrade manager ran as normal. Thursday, was out, so did not use laptop - Friday, no connection to internet.
I have done a bit of research - pinging tells me that the connection to the router is fine, but nothing to the internet. The same router is working fine for my windows desktop machine. After a frustrating weekend, I have thought of comparing settings on the desktop and laptop, and have found that there are 2 DNS server addresses on my desktop machine. Entering these into windows has got the laptop back on the internet using windows, but I cannot work out how to do this in system/preferences/network connections in Ubuntu.
Would anyone please be able to help a "non-technical" chap?

Probably unrelated, but I had to re-install Ubuntu quite recently, and the new installation does not recognise the wireless facility in the laptop - I have been using the ethernet connection for a few weeks.

Many thanks in anticipation

Stuart B
Old 03-21-2010, 08:27 PM   #2
Registered: May 2009
Location: Ontario Canada
Distribution: debian
Posts: 56

Rep: Reputation: 17
I would set the dns servers ip to your router....alternatively if you use dhcp your resolv.conf is overwritten each time you get a lease, such as at boot time. you can edit /etc/dhcp3/dhclient.conf
and add lines like these:

prepend domain-name-servers;
prepend domain-name-servers;
prepend domain-name-servers

if not you can set them in /etc/resolv.conf

hope this helps
Old 03-22-2010, 03:48 PM   #3
Stuart B
LQ Newbie
Registered: Feb 2010
Location: Yorkshire, UK
Distribution: Ubuntu 9.10
Posts: 7

Original Poster
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Hi 10speed705.

Thank you very much for your help. I am really sorry to admit my ignorance, but I am really not clear about what I have to do to "set the dns server's ip address to the router".

For the alternative you suggested, do I have to enter the system at boot, and then "dig around" to find etc/dhcp3/dhclient...?

Sorry for my ignorance - i am a user with a sense of adventure, rather than a technically driven type.



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