The problem is that you don't have any DNS nameservers defined.  With DHCP your machine gets them automatically, if you set your IP manually you have to set the nameservers manually as well. This out to help: <a href="http://www.cyberciti.biz/tips/howto-ubuntu-linux-convert-dhcp-network-configuration-to-static-ip-configuration.html">http://www.cyberciti.biz/tips/howto-ubuntu-linux-convert-dhcp-network-configuration-to-static-ip-configuration.html</a> <div>2008/3/20, <a href="mailto:xubuntu-users-request@lists.ubuntu.com">xubuntu-users-request@lists.ubuntu.com</a> <<a href="mailto:xubuntu-users-request@lists.ubuntu.com">xubuntu-users-request@lists.ubuntu.com</a>>:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Send xubuntu-users mailing list submissions to         <a href="mailto:xubuntu-users@lists.ubuntu.com">xubuntu-users@lists.ubuntu.com</a> To subscribe or unsubscribe via the World Wide Web, visit         <a href="https://lists.ubuntu.com/mailman/listinfo/xubuntu-users">https://lists.ubuntu.com/mailman/listinfo/xubuntu-users</a> or, via email, send a message with subject or body 'help' to         <a href="mailto:xubuntu-users-request@lists.ubuntu.com">xubuntu-users-request@lists.ubuntu.com</a> You can reach the person managing the list at         <a href="mailto:xubuntu-users-owner@lists.ubuntu.com">xubuntu-users-owner@lists.ubuntu.com</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of xubuntu-users digest..." Today's Topics:    1.  Help with hosts file (Stoos, Ralph)    2. Re:  Help with hosts file (Ged) ---------------------------------------------------------------------- Message: 1 Date: Wed, 19 Mar 2008 15:38:30 -0400 From: "Stoos, Ralph" <<a href="mailto:Ralph.Stoos@xerox.com">Ralph.Stoos@xerox.com</a>> Subject: [xubuntu-users] Help with hosts file To: <<a href="mailto:xubuntu-users@lists.ubuntu.com">xubuntu-users@lists.ubuntu.com</a>> Message-ID:         <<a href="mailto:C7B49D0E12A66F449112CCF2BC4933B106D8C470@USA0300MS01.na.xerox.net">C7B49D0E12A66F449112CCF2BC4933B106D8C470@USA0300MS01.na.xerox.net</a>> Content-Type: text/plain; charset="us-ascii" All, I am having a problem with Xubuntu not recognizing my host name.  I just loaded Xubuntu this morning and did all the updates etc. The system worked fine when I used DHCP to supply an address but, when I switched over to a static IP, I got this message: "Could not look up Internet address for lugx.  This will prevent Xfce from operating correctly.  It may be possible to correct the problem by adding lugx to the file /etc/hosts on your system." I am behind a firewall and the proxy information is entered properly. This host file issue seems to be causing the network interface to not come up. Any help would be appreciated.  I really don't want to reload the system Ralph H. Stoos Jr. -------------- next part -------------- An HTML attachment was scrubbed... URL: <a href="https://lists.ubuntu.com/archives/xubuntu-users/attachments/20080319/c1d03b45/attachment-0001.htm">https://lists.ubuntu.com/archives/xubuntu-users/attachments/20080319/c1d03b45/attachment-0001.htm</a> ------------------------------ Message: 2 Date: Wed, 19 Mar 2008 21:54:50 +0000 From: Ged <<a href="mailto:ged.byrom@ntlworld.com">ged.byrom@ntlworld.com</a>> Subject: Re: [xubuntu-users] Help with hosts file To: Xubuntu Help and User Discussions <<a href="mailto:xubuntu-users@lists.ubuntu.com">xubuntu-users@lists.ubuntu.com</a>> Message-ID: <<a href="mailto:47E18BAA.6030203@ntlworld.com">47E18BAA.6030203@ntlworld.com</a>> Content-Type: text/plain; charset=windows-1252; format=flowed Stoos, Ralph wrote: > > All, > > I am having a problem with Xubuntu not recognizing my host name. I > just loaded Xubuntu this morning and did all the updates etc. The > system worked fine when I used DHCP to supply an address but, when I > switched over to a static IP, I got this message: > > ?Could not look up Internet address for lugx. This will prevent Xfce > from operating correctly. It may be possible to correct the problem by > adding lugx to the file /etc/hosts on your system.? > > I am behind a firewall and the proxy information is entered properly. > This host file issue seems to be causing the network interface to not > come up. > > Any help would be appreciated. I really don?t want to reload the system > > *Ralph H. Stoos Jr.* > I had this error message. A friend told me to make ged-desktop the same as localhost, so in my etc/hosts file I have this now: <a href="http://127.0.0.1">127.0.0.1</a> localhost <a href="http://127.0.0.1">127.0.0.1</a> ged-desktop # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts I don't remember what was there originally but it worked. I don't know if it will help you. Here's hoping Ged. ------------------------------ -- xubuntu-users mailing list <a href="mailto:xubuntu-users@lists.ubuntu.com">xubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/xubuntu-users">https://lists.ubuntu.com/mailman/listinfo/xubuntu-users</a> End of xubuntu-users Digest, Vol 15, Issue 3 ******************************************** </blockquote></div>