[Bug 959037] Re: NM-controlled dnsmasq prevents other DNS servers from starting

[Thomas Hood]

Meanwhile my laptop has been working fine with two dnsmasq instances
running in cascade.  I'll try to subject this arrangement to more severe
tests in the coming weeks.

# netstat -nl46p | grep :53
tcp        0      0 127.0.0.2:53            0.0.0.0:*               LISTEN      7928/dnsmasq    
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      1256/dnsmasq    
tcp6       0      0 ::1:53                  :::*                    LISTEN      1256/dnsmasq    
udp        0      0 127.0.0.2:53            0.0.0.0:*                           7928/dnsmasq    
udp        0      0 127.0.0.1:53            0.0.0.0:*                           1256/dnsmasq    
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           1097/avahi-daemon: 
udp6       0      0 ::1:53                  :::*                                1256/dnsmasq    
udp6       0      0 :::5353                 :::*                                1097/avahi-daemon: 
# ps -elf|grep dnsmasq|grep -v grep
5 S dnsmasq   1256     1  0  80   0 -  8265 poll_s 10:03 ?        00:00:00 /usr/sbin/dnsmasq -x /var/run/dnsmasq/dnsmasq.pid -u dnsmasq -r /var/run/dnsmasq/resolv.conf -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new
4 S nobody    7928  1090  0  80   0 -  8265 poll_s 12:13 ?        00:00:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/var/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.0.2 --conf-file=/var/run/nm-dns-dnsmasq.conf --cache-size=0 --proxy-dnssec
# cat /etc/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
# cat /var/run/dnsmasq/resolv.conf
nameserver 127.0.0.2
# cat /var/run/nm-dns-dnsmasq.conf
server=<LAN nameserver address>
server=<LAN nameserver address>

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https://bugs.launchpad.net/bugs/959037

Title:
  NM-controlled dnsmasq prevents other DNS servers from starting

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