I am testing a bluetooth networking (bnep0) device on an Ubuntu 16.04 laptop. Everything works fine if I comment out dns=dnsmasq from the NetworkManager.conf. With dnsmasq on, everything works fine the first time I connect my bluetooth network device. When I disconnect it and reconnect it, DNS lookups fail immediately with a REFUSED status. When I restart the NetworkManager service everything works again.

I turned on log-queries, and it shows the query is received, but no response is shown in the logs and also no error messages. The logs show that on the reconnect the DHCP succeeded, and dnsmasq received the upstream nameservers from the DHCP response, but tcpdump does not show any DNS traffic to those nameservers when I use dig. Is there a verbosity setting that might show some more information on why the DNS queries are being refused?


Logs:

Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: setting upstream servers from DBus Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: using nameserver 192.168.10.2#53(via bnep0) Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: using nameserver 68.105.29.16#53(via bnep0) Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: using nameserver 68.105.28.16#53(via bnep0) Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:02 datasoft-travel whoopsie[883]: [16:56:02] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: query[SOA] local from 127.0.0.1 Jan 18 16:56:02 datasoft-travel NetworkManager[7926]: <info> [1484783762.2180] device (5C:31:3E:EC:71:B3): Activation: successful, device activated. Jan 18 16:56:02 datasoft-travel nm-dispatcher: req:2 'up' [bnep0]: new request (1 scripts) Jan 18 16:56:02 datasoft-travel nm-dispatcher: req:2 'up' [bnep0]: start running ordered scripts... Jan 18 16:56:02 datasoft-travel whoopsie[883]: [16:56:02] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/2 Jan 18 16:56:02 datasoft-travel deja-dup-monito[3334]: Source ID 948 was not found when attempting to remove it Jan 18 16:56:02 datasoft-travel whoopsie[883]: [16:56:02] Network connection may be a paid data plan: /org/freedesktop/NetworkManager/Devices/3 Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:02 datasoft-travel whoopsie[883]: [16:56:02] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: query[SOA] local from 127.0.0.1
Jan 18 16:56:02 datasoft-travel systemd[1]: Reloading.
Jan 18 16:56:02 datasoft-travel systemd[1]: snapd.refresh.timer: Adding 4h 43min 19.514615s random time. Jan 18 16:56:02 datasoft-travel systemd[1]: apt-daily.timer: Adding 2h 3min 35.943181s random time. Jan 18 16:56:02 datasoft-travel dnsmasq[7973]: query[SOA] local from 127.0.0.1
Jan 18 16:56:02 datasoft-travel systemd[1]: Reloading.
Jan 18 16:56:02 datasoft-travel systemd[1]: snapd.refresh.timer: Adding 1h 9min 9.603579s random time. Jan 18 16:56:02 datasoft-travel systemd[1]: apt-daily.timer: Adding 6h 19min 48.788489s random time. Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] fsodqcsvqrxnlyy.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] xasqjyv.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] ftmkaipfpi.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel whoopsie[883]: [16:56:03] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:03 datasoft-travel avahi-daemon[903]: Joining mDNS multicast group on interface bnep0.IPv6 with address fe80::cf57:5122:c1f0:43cd. Jan 18 16:56:03 datasoft-travel avahi-daemon[903]: New relevant interface bnep0.IPv6 for mDNS. Jan 18 16:56:03 datasoft-travel avahi-daemon[903]: Registering new address record for fe80::cf57:5122:c1f0:43cd on bnep0.*. Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel whoopsie[883]: [16:56:03] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:03 datasoft-travel NetworkManager[7926]: <info> [1484783763.4104] policy: set 'SIDEBRIDGE_002020 Network' (bnep0) as default for IPv6 routing and DNS Jan 18 16:56:03 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:03 datasoft-travel whoopsie[883]: [16:56:03] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:04 datasoft-travel dnsmasq[7973]: query[A] hmtddsov.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:04 datasoft-travel dnsmasq[7973]: query[A] bigsooxchvptr.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:04 datasoft-travel dnsmasq[7973]: query[A] ecbamrdeizxzc.corp.datasoft.com from 127.0.0.1 Jan 18 16:56:04 datasoft-travel dnsmasq[7973]: query[A] daisy.ubuntu.com from 127.0.0.1 Jan 18 16:56:04 datasoft-travel whoopsie[883]: [16:56:04] Cannot reach: https://daisy.ubuntu.com Jan 18 16:56:04 datasoft-travel ModemManager[898]: <info> Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:14.0/usb1/1-5': not supported by any plugin Jan 18 16:56:05 datasoft-travel dnsmasq[7973]: query[A] www.google.com from 127.0.0.1 Jan 18 16:56:06 datasoft-travel dnsmasq[7973]: query[A] www.google.com from 127.0.0.1 Jan 18 16:56:07 datasoft-travel dnsmasq[7973]: query[A] www.cnn.com from 127.0.0.1

Thanks,
Aaron


_______________________________________________
Dnsmasq-discuss mailing list
Dnsmasq-discuss@lists.thekelleys.org.uk
http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss

Reply via email to