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问题描述
制作了一个docker镜像，运行dnsmasq。域名解析竟然无应答, no servers cloud be reached
- 发送请求解析域名
dig www.google.com @192.168.0.111 -p 53
; <<>> DiG 9.11.3-RedHat-9.11.3-4.fc27 <<>> www.google.com @192.168.0.111 -p 53
;; global options: +cmd
;; connection timed out; no servers could be reached
- dnsmasq打印日志。从日志中发现缺少reply
[root@bogon ss]# docker-compose -f chinadns.yml up dns-dnsmasq
Starting ss_dns-dnsmasq_1 ... done
Attaching to ss_dns-dnsmasq_1
dns-dnsmasq_1 | dnsmasq: started, version 2.79 cachesize 150
dns-dnsmasq_1 | dnsmasq: 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
dns-dnsmasq_1 | dnsmasq: using nameserver 192.168.0.111#5354
dns-dnsmasq_1 | dnsmasq: read /etc/hosts - 7 addresses
dns-dnsmasq_1 | dnsmasq: query[A] www.google.com from 192.168.0.111
#请求发送上游dns服务器,无后续reply。再去看上游dns服务器，发现已经解析出了ip
# 而dnsmasq还是无应答
dns-dnsmasq_1 | dnsmasq: forwarded www.google.com to 192.168.0.111
dns-dnsmasq_1 | dnsmasq: query[A] www.google.com from 192.168.0.111
dns-dnsmasq_1 | dnsmasq: forwarded www.google.com to 192.168.0.111
解决办法。
尝试了很多办法，很奇怪为什么应答不了。dnsmasq也不大，放到宿主机器上运行吧
此生必看的科学实验-水知道答案
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https://v.qq.com/x/page/h0359zvupc0.html
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