cherrot/gochinadns

A drop-in replacement for ChinaDNS, with some additional features. NOTICE: This project is not under active development: I believe Clash has provided a more elegant DNS & proxy solution. So there is no need to maintain this project. Have fun guys!

gochinadns's Issues

can't start listen

Linux asus 2.6.36.4brcmarm #1 SMP PREEMPT Wed Dec 19 07:47:43 CET 2018 armv7l GNU/Linux

$ ./chinadns -p 54 -v
INFO[0000] 193.112.15.186:2323: average RTT 9.900583ms with 0 errors.
INFO[0000] 119.29.29.29:53: average RTT 37.194065ms with 0 errors.
INFO[0000] 114.114.114.114:53: average RTT 33.271687ms with 0 errors.
INFO[0000] Refined trusted resolvers: [193.112.15.186:2323]
INFO[0000] Refined untrusted resolvers: [114.114.114.114:53 119.29.29.29:53]
INFO[0000] Start server at [::]:54
panic: listen udp 0.0.0.0:54: protocol not available

goroutine 1 [running]:
main.main()

$ ./chinadns -p 5053 -v
INFO[0000] 193.112.15.186:2323: average RTT 9.752631ms with 0 errors.
INFO[0000] 119.29.29.29:53: average RTT 36.254511ms with 0 errors.
INFO[0000] 114.114.114.114:53: average RTT 33.997863ms with 0 errors.
INFO[0000] Refined trusted resolvers: [193.112.15.186:2323]
INFO[0000] Refined untrusted resolvers: [114.114.114.114:53 119.29.29.29:53]
INFO[0000] Start server at [::]:5053
panic: listen tcp 0.0.0.0:5053: protocol not available

goroutine 1 [running]:
main.main()
/mnt/data/compile/go/src/github.com/cherrot/gochinadns/cmd/chinadns/main.go:119 +0x704

Support EDNS client net

miekg/dns#337

重构代码结构，区分Server和Client，方便编写其他小工具

Add a LRU cache for DNS queries

Support DNS over HTTPS

Deprecate `-m` flag, make mutation method a server specific option

Add CI build

Support IP blacklist

支持配置文件，能够单独配置每个上游服务器的策略

Make gochinadns a drop-in replacement to ChinaDNS

支持单独定义resolver所用协议

协议：udp,tcp,doh for DNS over HTTPS
由于不想写配置文件，希望定义一个schema：

udp+tcp+doh#https://dns.google.com/[email protected]:53

运行一天后崩溃

运行参数：
chinadns -c /etc/tinc/conf/china.txt -s 114.114.114.114 -trusted-servers 8.8.8.8

目前只有堆栈打印

time="2019-06-09T00:33:32+08:00" level=error msg="Fail to send UDP query. Will retry in TCP." error="read udp 192.168.192.210:38595->8.8.8.8:53: i/o timeout" question="www.gstatic.com. A" server="8.8.8.8:53"
time="2019-06-09T00:33:33+08:00" level=error msg="Fail to send TCP query." error="dial tcp 8.8.8.8:53: i/o timeout" question="www.gstatic.com. A" server="8.8.8.8:53"
time="2019-06-09T00:33:33+08:00" level=error msg="Error hanppens." error="0: dial tcp 8.8.8.8:53: i/o timeout" question="www.gstatic.com. A"
time="2019-06-09T00:33:34+08:00" level=error msg="Fail to send UDP query. Will retry in TCP." error="read udp 192.168.192.210:38650->8.8.8.8:53: i/o timeout" question="init.itunes.apple.com. A" server="8.8.8.8:53"
time="2019-06-09T00:33:35+08:00" level=error msg="Fail to send UDP query. Will retry in TCP." error="read udp 192.168.192.210:35226->8.8.8.8:53: i/o timeout" question="xp.apple.com. A" server="8.8.8.8:53"
time="2019-06-09T00:33:35+08:00" level=error msg="Fail to send UDP query. Will retry in TCP." error="read udp 192.168.192.210:60947->8.8.8.8:53: i/o timeout" question="itunes.apple.com. A" server="8.8.8.8:53"
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x61a2c0]

goroutine 131600 [running]:
github.com/miekg/dns.(*Msg).SetEdns0(...)
        C:/Users/Admin/go/pkg/mod/github.com/miekg/[email protected]/defaults.go:130
github.com/cherrot/gochinadns.setUDPSize(0xc0006c0900, 0x582, 0x69e45a)
        C:/Users/Admin/Desktop/gochinadns-master/lookup.go:183 +0xf0
github.com/cherrot/gochinadns.(*Server).Lookup(0xc000383fb0, 0xc0006c0900, 0xc000012344, 0xa, 0x0, 0x0, 0x0, 0x0)
        C:/Users/Admin/Desktop/gochinadns-master/lookup.go:81 +0x433
github.com/cherrot/gochinadns.(*Server).Lookup-fm(0xc0006c0900, 0xc000012344, 0xa, 0x645d20, 0xc0004f7e20, 0xc0006fed20, 0x25)
        C:/Users/Admin/Desktop/gochinadns-master/dns.go:43 +0x48
github.com/cherrot/gochinadns.lookupInServers.func1(0x0, 0xc000012344, 0xa)
        C:/Users/Admin/Desktop/gochinadns-master/lookup.go:34 +0x14b
created by github.com/cherrot/gochinadns.lookupInServers
        C:/Users/Admin/Desktop/gochinadns-master/lookup.go:56 +0x538
"./root/chinadns-1.3.2/nohup.out" 3261L, 586365C                                

Refactor schemaToResolver with option functions

Make schemaToResolver accept several "option functions" (say, WithTCPOnly()) . This makes the main logic look simpler.

Originally posted by @cherrot in #18 (comment)

DomainPolluted 无法匹配到

DomainPolluted 无法匹配到，暂时删除最后一个点。。

if !s.DomainPolluted.Contain(strings.TrimRight(qName, ".") ) {

Embed `china.list` into chinadns binary

pointer mutation已失效

很有趣，似乎dig google.com没有问题，但www.google.com, twitter, facebook统统中招。所以最开始没有发现这个方法已经失效的事实。。

解决思路：

1. 换用非常见IP、非标准端口的上游DNS服务
2. 代理DNS请求
3. 支持更多DNS扩展协议，支持单独设置每个上游DNS解析服务器使用的协议。