Ubuntu 17.04, but I also had the problem on 16.04 .
The DNS proxy is very slow resolving external hostnames.
time nslookup google.com 127.0.0.1
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
Name: google.com
Address: 172.217.18.110
nslookup google.com 127.0.0.1 0,01s user 0,01s system 0% cpu 4,033 total
4 seconds is a long time to wait for your primary nameserver. Cached requests and .dork.io requests are served quickly, it's only external requests that have this problem. I enabled logging on the container, and got
dnsmasq[1]: started, version 2.75 cachesize 150
dnsmasq[1]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth no-DNSSEC loop-detect inotify
dnsmasq[1]: reading /etc/resolv.conf
dnsmasq[1]: using nameserver 127.0.0.11#53
dnsmasq[1]: read /etc/hosts - 8 addresses
No additional logs are printed during resolution.
Ubuntu 17.04, but I also had the problem on 16.04 .
The DNS proxy is very slow resolving external hostnames.
4 seconds is a long time to wait for your primary nameserver. Cached requests and .dork.io requests are served quickly, it's only external requests that have this problem. I enabled logging on the container, and got
No additional logs are printed during resolution.