Re: On some systems dnsmasq is not getting to run, even though configured

[Pavel Simerda <psimerda redhat com>]

----- Original Message -----
> From: "Chris Green" <cl isbd net>
> To: networkmanager-list gnome org
> Sent: Sunday, January 6, 2013 7:39:09 PM
> Subject: On some systems dnsmasq is not getting to run, even though configured
> 
> I have three systems here all running Ubuntu 12.10 (well, one is
> Lubuntu, one is Xubuntu and one is just Ubuntu but that shouldn't
> matter).
> 
> On one (a 32-bit one) the default configuration of Network Manager
> running dnsmasq works exactly as it should and /etc/resolv.conf is:-
> 
>     # 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 127.0.1.1
>     search zbmc.eu
> 
> 
> On the other two (both 64-bit systems) although configured to run
> dsnmasq from Network Manager it fails to run.  Their resolv.conf file
> is:-
> 
>     # 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 192.168.1.2
>     search zbmc.eu
> 
> This is correct (if dnsmasq isn't running) because I have a local
> nameserver running at 192.168.1.2 on my LAN.
> 
> One of the two systems where dnsmasq isn't running is a very basic,
> recently installed system where I have done no reconfiguration at
> all.
> The other is my desktop machine and I *used* to have a dnsmasq
> running
> there as a complete DHCP and DNS server but I uninstalled the dnsmasq
> and just left dnsmasq-base. (I have put the dns=dnsmasq line back
> into
> NetworkManager.conf).
> 
> I'm just wondering if the common factor is Ubuntu 12.10 and 64-bit
> (it
> only used to work on 12.04 on my desktop system).
> 
> Looking in /var/syslog on the 64-bit system one sees:-
> 
>     Jan  6 15:39:52 test NetworkManager[900]: <info> DNS: loaded
>     plugin dnsmasq
> 
> but that's it, nothing further at all about dnsmasq, whereas on the
> 32-bit system where it works there are lots of further messages from
> NetworkManager about dnsmasq.
> 
> 
> Does anyone have any ideas what might be wrong?

By default, NetworkManager compiles without resolvconf support and edits /etc/resolv.conf directly. But I don't how much that makes a difference. Maybe strace on NetworkManager process could help?

Pavel

> 
> --
> Chris Green
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