Yes, it happens with dnsmasq by itself. However it appears that dnsmasq is caching the result, so when it sees a good one it will keep serving it.
Here is some example output from the syslog: Jun 22 13:42:18 archon dnsmasq[9635]: started, version 2.59 cachesize 150 Jun 22 13:42:18 archon dnsmasq[9635]: compile time options: IPv6 GNU-getopt DBus i18n DHCP TFTP conntrack IDN Jun 22 13:42:18 archon dnsmasq[9635]: reading /var/run/dnsmasq/resolv.conf Jun 22 13:42:18 archon dnsmasq[9635]: using nameserver 75.75.76.76#53 Jun 22 13:42:18 archon dnsmasq[9635]: using nameserver 75.75.75.75#53 Jun 22 13:42:18 archon dnsmasq[9635]: read /etc/hosts - 8 addresses Jun 22 13:42:18 archon dnsmasq[9635]: query[SOA] local from 127.0.0.1 Jun 22 13:42:18 archon dnsmasq[9635]: forwarded local to 75.75.75.75 Jun 22 13:42:18 archon dnsmasq[9635]: forwarded local to 75.75.76.76 Jun 22 13:42:18 archon dnsmasq[9635]: query[SOA] local from 127.0.0.1 Jun 22 13:42:18 archon dnsmasq[9635]: forwarded local to 75.75.75.75 .. Jun 22 13:43:09 archon dnsmasq[9635]: query[A] slashdot.org from 127.0.0.1 Jun 22 13:43:09 archon dnsmasq[9635]: forwarded slashdot.org to 75.75.75.75 Jun 22 13:43:09 archon dnsmasq[9635]: reply slashdot.org is 216.34.181.45 Jun 22 13:43:26 archon dnsmasq[9635]: query[A] slashdot.org from 127.0.0.1 Jun 22 13:43:26 archon dnsmasq[9635]: cached slashdot.org is 216.34.181.45 .. Jun 22 13:46:00 archon dnsmasq[9814]: query[A] gmail.com from 127.0.0.1 Jun 22 13:46:00 archon dnsmasq[9814]: forwarded gmail.com to 75.75.75.75 Jun 22 13:46:00 archon dnsmasq[9814]: forwarded gmail.com to 75.75.76.76 Jun 22 13:46:05 archon dnsmasq[9814]: query[A] gmail.com from 127.0.0.1 Jun 22 13:46:05 archon dnsmasq[9814]: forwarded gmail.com to 75.75.75.75 Jun 22 13:46:05 archon dnsmasq[9814]: forwarded gmail.com to 75.75.76.76 Jun 22 13:46:10 archon dnsmasq[9814]: query[A] gmail.com from 127.0.0.1 Jun 22 13:46:10 archon dnsmasq[9814]: forwarded gmail.com to 75.75.75.75 Jun 22 13:46:10 archon dnsmasq[9814]: forwarded gmail.com to 75.75.76.76 the last was generated by dig @localhost gmail.com -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/991308 Title: DNS Querying fails if any DNS server is unreachable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/991308/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
