sudo docker run -itd -p 0.0.0.0:5053:53/udp --name=CureDNS alexzhuo/cdns cdns -c /etc/cdns.config.json
alex@alex-Lenovo-U310:~$ dig www.facebook.com @127.0.0.1 -p 5053 ; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.facebook.com @127.0.0.1 -p 5053 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9522 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.facebook.com. IN A ;; ANSWER SECTION: www.facebook.com. 1550 IN CNAME star-mini.c10r.facebook.com. star-mini.c10r.facebook.com. 30 IN A 31.13.95.36 ;; AUTHORITY SECTION: c10r.facebook.com. 2010 IN NS a.ns.c10r.facebook.com. c10r.facebook.com. 2010 IN NS b.ns.c10r.facebook.com. ;; ADDITIONAL SECTION: a.ns.c10r.facebook.com. 2439 IN A 69.171.239.11 a.ns.c10r.facebook.com. 2439 IN AAAA 2a03:2880:fffe:b:face:b00c:0:99 b.ns.c10r.facebook.com. 3351 IN A 69.171.255.11 b.ns.c10r.facebook.com. 1253 IN AAAA 2a03:2880:ffff:b:face:b00c:0:99 ;; Query time: 47 msec ;; SERVER: 127.0.0.1#5053(127.0.0.1) ;; WHEN: Mon Apr 10 16:21:46 CST 2017 ;; MSG SIZE rcvd: 213
dig www.facebook.com @192.168.12.107 -p 5053
alex@alex-Lenovo-U310:~$ ifconfig docker0 Link encap:以太网 硬件地址 02:42:cd:21:5c:81 inet 地址:172.17.0.1 广播:0.0.0.0 掩码:255.255.0.0 inet6 地址: fe80::42:cdff:fe21:5c81/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1 接收数据包:2892 错误:0 丢弃:0 过载:0 帧数:0 发送数据包:3517 错误:0 丢弃:0 过载:0 载波:0 碰撞:0 发送队列长度:0 接收字节:187022 (187.0 KB) 发送字节:4771886 (4.7 MB) lo Link encap:本地环回 inet 地址:127.0.0.1 掩码:255.0.0.0 inet6 地址: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 跃点数:1 接收数据包:9993 错误:0 丢弃:0 过载:0 帧数:0 发送数据包:9993 错误:0 丢弃:0 过载:0 载波:0 碰撞:0 发送队列长度:1 接收字节:934304 (934.3 KB) 发送字节:934304 (934.3 KB) wlp3s0 Link encap:以太网 硬件地址 74:e5:43:b0:dd:b0 inet 地址:192.168.12.107 广播:192.168.12.255 掩码:255.255.255.0 inet6 地址: fe80::8adf:28f7:5ec:3a5d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1 接收数据包:69760 错误:0 丢弃:0 过载:0 帧数:0 发送数据包:64718 错误:0 丢弃:0 过载:0 载波:0 碰撞:0 发送队列长度:1000 接收字节:41517057 (41.5 MB) 发送字节:9971762 (9.9 MB)
# ifconfig eth0 Link encap:Ethernet HWaddr 02:42:ac:11:00:02 inet addr:172.17.0.2 Bcast:0.0.0.0 Mask:255.255.0.0 inet6 addr: fe80::42:acff:fe11:2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3449 errors:0 dropped:0 overruns:0 frame:0 TX packets:2811 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:4763490 (4.7 MB) TX bytes:219998 (219.9 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
alex@alex-Lenovo-U310:~$ ip route default via 192.168.12.1 dev wlp3s0 proto static metric 600 169.254.0.0/16 dev docker0 scope link metric 1000 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 192.168.12.0/24 dev wlp3s0 proto kernel scope link src 192.168.12.107 metric 600
route add -net 172.17.0.1/16 gw 192.168.12.107
ip route add 172.17.0.1/16 via 192.168.12.107
alex@alex-Lenovo-U310:~$ sudo iptables -t nat -L -n Chain PREROUTING (policy ACCEPT) target prot opt source destination DOCKER all -- 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type LOCAL Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination DOCKER all -- 0.0.0.0/0 !127.0.0.0/8 ADDRTYPE match dst-type LOCAL Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 172.17.0.0/16 0.0.0.0/0 MASQUERADE tcp -- 172.17.0.2 172.17.0.2 tcp dpt:53 MASQUERADE udp -- 172.17.0.2 172.17.0.2 udp dpt:53 Chain DOCKER (2 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 DNAT tcp -- 0.0.0.0/0 127.0.0.1 tcp dpt:5053 to:172.17.0.2:53 DNAT udp -- 0.0.0.0/0 127.0.0.1 udp dpt:5053 to:172.17.0.2:53
sudo iptables -t nat -D POSTROUTING 3
sudo iptables -t nat -A POSTROUTING -s 172.17.0.2 ! -d 192.168.12.1/24 -j MASQUERADE
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