About the last comment: I do not understand very well what's going on. Here's what I did:
* Before looking at these comments, I removed all wired connections from network manager configuration. I rebooted the server and the resulting resolv.conf was not referencing 127.0.0.1 anymore, but the DNS servers from dhcp directly; I re-added a wired connection from the main adapter (eth0) with DHCP and the same stuff happened. * After that I noticed that the dnsmasq package wasn't installed. I forgot to add the line from ps -ef that showed that dnsmasq was running as a child process from NetworkManager (I even remember the --no-hosts parameter) even without the dnsmasq package being there * I installed dnsmasq just to see what would happen, and the resolv.conf referencing 127.0.0.1 became active again, and again, it does not work if I configure my DHCP server to lend it many servers. However, if I tested with one DNS server and four DNS servers, and both worked OK. * This "new" dnsmasq process is not a child from NetworkManager and does not have the file /var/run/nm-dns-dnsmasq.conf - what is going on, does Networkmanager has a different dnsmasq that comes with it? * As you can see, before this day I only had dnsmasq-base and not dnsmasq installed: [patola@bmw patola]% grep dnsmasq /var/log/dpkg.log 2012-04-06 09:05:34 upgrade dnsmasq-base 2.57-1ubuntu1 2.59-4 2012-04-06 09:05:34 status half-configured dnsmasq-base 2.57-1ubuntu1 2012-04-06 09:05:36 status unpacked dnsmasq-base 2.57-1ubuntu1 2012-04-06 09:05:37 status half-installed dnsmasq-base 2.57-1ubuntu1 2012-04-06 09:05:39 status half-installed dnsmasq-base 2.57-1ubuntu1 2012-04-06 09:05:41 status half-installed dnsmasq-base 2.57-1ubuntu1 2012-04-06 09:05:45 status unpacked dnsmasq-base 2.59-4 2012-04-06 09:05:45 status unpacked dnsmasq-base 2.59-4 2012-04-07 02:19:55 configure dnsmasq-base 2.59-4 2.59-4 2012-04-07 02:19:55 status unpacked dnsmasq-base 2.59-4 2012-04-07 02:19:56 status half-configured dnsmasq-base 2.59-4 2012-04-07 02:19:57 status installed dnsmasq-base 2.59-4 2012-04-30 01:24:28 install dnsmasq <nenhum> 2.59-4 2012-04-30 01:24:28 status half-installed dnsmasq 2.59-4 2012-04-30 01:24:29 status half-installed dnsmasq 2.59-4 2012-04-30 01:24:31 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:32 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:33 configure dnsmasq 2.59-4 <nenhum> 2012-04-30 01:24:33 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:33 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status unpacked dnsmasq 2.59-4 2012-04-30 01:24:34 status half-configured dnsmasq 2.59-4 2012-04-30 01:24:37 status installed dnsmasq 2.59-4 * I have a central server on my intranet that also does DNS resolution and caching. Is dnsmasq really needed on this scenario? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/991347 Title: After upgrade to 12.04 resolvconf seems ok but does not work Status in “network-manager” package in Ubuntu: Incomplete Bug description: I was using a simple scheme for DNS resolution before upgrading from 11.10 to 12.04: there are three interfaces on the computer, eth0 is the main one, acquires IP and DNS automatically from 10.0.0.1, which is also the default route. But after upgrade to the new DNS scheme on ubuntu 12.04, it does not work. Everything seems in order: /etc/network/interfaces: ------------ # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet dhcp ----------- /etc/resolv.conf (link to ../run/resolvconf/resolv.conf): ------------------ # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 127.0.0.1 search patola.org ----------------- /var/run/nm-dns-dnsmasq.conf: ------------------ server=200.212.223.43 server=8.8.8.8 server=8.8.4.4 server=200.212.223.44 server=208.53.170.32 server=200.212.223.100 server=143.106.2.5 server=200.162.192.51 server=200.162.192.50 server=200.162.192.49 server=200.162.192.52 ----------------- under /etc/resolvconf/resolv.conf.d: base - null, 0 bytes head: ---------------------------- # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN -------------------------- original: ----------------------- # Generated by NetworkManager domain patola.org search patola.org nameserver 200.212.223.43 nameserver 8.8.8.8 nameserver 8.8.4.4 # NOTE: the libc resolver may not support more than 3 nameservers. # The nameservers listed below may not be recognized. nameserver 200.212.223.44 nameserver 208.53.170.32 nameserver 200.212.223.100 nameserver 143.106.2.5 nameserver 200.162.192.51 nameserver 200.162.192.50 nameserver 200.162.192.49 nameserver 200.162.192.52 --------------------- In other words, all these server are the right ones, however, when I try to do a DNS query, it goes like that: [root@bmw ~]# dig www.terra.com.br ; <<>> DiG 9.8.1-P1 <<>> www.terra.com.br ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53771 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 6 ;; QUESTION SECTION: ;www.terra.com.br. IN A ;; AUTHORITY SECTION: terra.com.br. 71303 IN NS d.dns.terra.com.br. terra.com.br. 71303 IN NS b.dns.terra.com.br. terra.com.br. 71303 IN NS a.dns.terra.com. terra.com.br. 71303 IN NS c.dns.terra.com. ;; ADDITIONAL SECTION: d.dns.terra.com.br. 70276 IN A 200.215.194.1 d.dns.terra.com.br. 70276 IN AAAA 2001:12c0:0:2151:200:154:46:21 b.dns.terra.com.br. 70276 IN A 200.215.193.1 b.dns.terra.com.br. 70276 IN AAAA 2001:12c0:0:2151:200:154:46:20 a.dns.terra.com. 156677 IN A 200.215.193.1 c.dns.terra.com. 156677 IN A 200.215.194.1 ;; Query time: 17 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sun Apr 29 15:05:37 2012 ;; MSG SIZE rcvd: 235 In other words, it returns a null response!!! No address! As soon as I change 127.0.0.1 on /etc/resolv.conf to a real DNS server, it works again. But of course, when configured this way it never uses dnsmasq. Why has the conversion not worked? ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: resolvconf 1.63ubuntu11 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu6 Architecture: amd64 Date: Sun Apr 29 14:46:00 2012 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426) PackageArchitecture: all SourcePackage: resolvconf UpgradeStatus: Upgraded to precise on 2012-04-06 (23 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/991347/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
