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bind [::]:5555 -no-cache
server-tls 223.5.5.5
server 0.0.0.0:6666 -group test # dummy dns, just test
# server 0.0.0.0:6666 -group test -exclude-default-group
log-console yes
log-level debug
domain-rules /dl.google.com/ -nameserver default
domain-rules /google.com/ -nameserver test
重现步骤
上游DNS配置:N/A
访问的域名
dig @localhost -p 5555 dl.google.com
信息收集
使用上述配置时,查询 dl.google.com 可以看到同时往 test 组进行了查询,与我想象的不一样:
[2024-06-23 11:17:22,984][DEBUG][ dns_server.c:7155] recv query packet from 127.0.0.1, len = 54, type = 0
[2024-06-23 11:17:22,984][DEBUG][ dns.c:2160] opt type 10
[2024-06-23 11:17:22,984][DEBUG][ dns_server.c:7171] request qdcount = 1, ancount = 0, nscount = 0, nrcount = 0, len = 54, id = 33750, tc = 0, rd = 1, ra = 0, rcode = 0
[2024-06-23 11:17:22,984][DEBUG][ dns_server.c:7196] query dl.google.com from 127.0.0.1, qtype: 1, id: 33750, query-num: 1
[2024-06-23 11:17:22,984][ INFO][ dns_server.c:5264] RULE-MATCH, type: 8, domain: dl.google.com, rule: dl.google.com.
[2024-06-23 11:17:22,984][DEBUG][ dns_client.c:3855] send query to server 0.0.0.0:6666
[2024-06-23 11:17:22,984][DEBUG][ dns_client.c:3855] send query to server 223.5.5.5:853
[2024-06-23 11:17:22,984][DEBUG][ dns_client.c:2582] recvfrom 0.0.0.0 failed, Connection refused
[2024-06-23 11:17:22,984][DEBUG][ dns_client.c:2376] tls server 223.5.5.5 connecting.
[2024-06-23 11:17:22,984][ INFO][ dns_client.c:4252] request: dl.google.com, qtype: 1, id: 31023, group: default
[2024-06-23 11:17:22,984][DEBUG][ dns_client.c:1324] server 0.0.0.0 closed.
[2024-06-23 11:17:23,062][DEBUG][ dns_client.c:3325] tls server 223.5.5.5 connected.
如果改成 server 0.0.0.0:6666 -group test -exclude-default-group,查询就符合预期了:
[2024-06-23 11:17:44,738][DEBUG][ dns_server.c:7155] recv query packet from 127.0.0.1, len = 54, type = 0
[2024-06-23 11:17:44,738][DEBUG][ dns.c:2160] opt type 10
[2024-06-23 11:17:44,738][DEBUG][ dns_server.c:7171] request qdcount = 1, ancount = 0, nscount = 0, nrcount = 0, len = 54, id = 56299, tc = 0, rd = 1, ra = 0, rcode = 0
[2024-06-23 11:17:44,738][DEBUG][ dns_server.c:7196] query dl.google.com from 127.0.0.1, qtype: 1, id: 56299, query-num: 1
[2024-06-23 11:17:44,738][ INFO][ dns_server.c:5264] RULE-MATCH, type: 8, domain: dl.google.com, rule: dl.google.com.
[2024-06-23 11:17:44,738][DEBUG][ dns_client.c:3855] send query to server 223.5.5.5:853
[2024-06-23 11:17:44,738][DEBUG][ dns_client.c:2376] tls server 223.5.5.5 connecting.
[2024-06-23 11:17:44,738][ INFO][ dns_client.c:4252] request: dl.google.com, qtype: 1, id: 43367, group: default
[2024-06-23 11:17:44,815][DEBUG][ dns_client.c:3325] tls server 223.5.5.5 connected.
The text was updated successfully, but these errors were encountered:
问题现象
在源码中看到这么几行:
smartdns/src/dns_conf.c
Lines 999 to 1002 in 07c1382
我觉得它的意思是,如果一个 server 配置了 group,就将它从默认组中排除;然而实际上没有。
运行环境
固件型号:N/A
运营商:N/A
smartdns来源以及版本:Link
涉及的配置(注意去除个人相关信息)
重现步骤
上游DNS配置:N/A
访问的域名
信息收集
使用上述配置时,查询
dl.google.com
可以看到同时往 test 组进行了查询,与我想象的不一样:如果改成
server 0.0.0.0:6666 -group test -exclude-default-group
,查询就符合预期了:The text was updated successfully, but these errors were encountered: