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pymumu avatar pymumu commented on May 16, 2024

上游DNS下发的数据太长了，不符合协议规范了。DNS数据默认最长512字节的，有个RFC开启的话，最长也只有1200多字节。这里数据都12K了，不正常。
把上游DNS列表发出来看看。

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ohmyjcc avatar ohmyjcc commented on May 16, 2024

server 8.8.8.8
server 8.8.4.4
server 210.0.255.251
server 202.174.158.10
server 210.87.251.1
server 210.87.251.2
server 202.45.84.59
server 202.2.77.76

cache-size 5120
bind 0.0.0.0:1053
server-name smartdns
log-level debug

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ohmyjcc avatar ohmyjcc commented on May 16, 2024

拿hk-prof.np.community.playstation.net分别做了几个dig 测试 其中 有部份是返回475字节
是否是因为这类的cdn 产生的影响？
; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7_5.1 <<>> hk-prof.np.community.playstation.net @210.0.255.251
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12491
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;hk-prof.np.community.playstation.net. IN A

;; ANSWER SECTION:
hk-prof.np.community.playstation.net. 3600 IN CNAME wildcard.np.community.playstation.net.edgekey.net.
wildcard.np.community.playstation.net.edgekey.net. 8562 IN CNAME e13555.b.akamaiedge.net.
e13555.b.akamaiedge.net. 300 IN A 23.57.112.134

;; Query time: 64 msec
;; SERVER: 210.0.255.251#53(210.0.255.251)
;; WHEN: Mon Oct 08 16:56:23 CST 2018
;; MSG SIZE rcvd: 175

; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7_5.1 <<>> hk-prof.np.community.playstation.net @202.174.158.10
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26433
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 8, ADDITIONAL: 10

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;hk-prof.np.community.playstation.net. IN A

;; ANSWER SECTION:
hk-prof.np.community.playstation.net. 3600 IN CNAME wildcard.np.community.playstation.net.edgekey.net.
wildcard.np.community.playstation.net.edgekey.net. 11691 IN CNAME e13555.b.akamaiedge.net.
e13555.b.akamaiedge.net. 20 IN A 23.56.28.127

;; AUTHORITY SECTION:
b.akamaiedge.net. 3611 IN NS n5b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n4b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n0b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n6b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n3b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n7b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n2b.akamaiedge.net.
b.akamaiedge.net. 3611 IN NS n1b.akamaiedge.net.

;; ADDITIONAL SECTION:
n5b.akamaiedge.net. 3611 IN A 23.13.219.206
n0b.akamaiedge.net. 3611 IN A 88.221.81.192
n0b.akamaiedge.net. 3611 IN AAAA 2600:1480:e800::c0
n2b.akamaiedge.net. 3611 IN A 23.13.219.183
n7b.akamaiedge.net. 3611 IN A 184.84.239.185
n4b.akamaiedge.net. 3611 IN A 184.28.218.204
n3b.akamaiedge.net. 3611 IN A 23.13.219.190
n1b.akamaiedge.net. 3611 IN A 219.76.14.44
n6b.akamaiedge.net. 3611 IN A 23.13.219.189

;; Query time: 10 msec
;; SERVER: 202.174.158.10#53(202.174.158.10)
;; WHEN: Mon Oct 08 16:57:24 CST 2018
;; MSG SIZE rcvd: 475

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26979
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 8, ADDITIONAL: 10

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;hk-prof.np.community.playstation.net. IN A

;; ANSWER SECTION:
hk-prof.np.community.playstation.net. 3600 IN CNAME wildcard.np.community.playstation.net.edgekey.net.
wildcard.np.community.playstation.net.edgekey.net. 21600 IN CNAME e13555.b.akamaiedge.net.
e13555.b.akamaiedge.net. 20 IN A 23.57.112.134

;; AUTHORITY SECTION:
b.akamaiedge.net. 1271 IN NS n0b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n1b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n2b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n3b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n4b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n5b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n6b.akamaiedge.net.
b.akamaiedge.net. 1271 IN NS n7b.akamaiedge.net.

;; ADDITIONAL SECTION:
n0b.akamaiedge.net. 1271 IN A 88.221.81.192
n0b.akamaiedge.net. 1271 IN AAAA 2600:1480:e800::c0
n1b.akamaiedge.net. 1271 IN A 23.43.49.111
n2b.akamaiedge.net. 1271 IN A 23.43.49.108
n3b.akamaiedge.net. 1271 IN A 23.13.219.180
n4b.akamaiedge.net. 1271 IN A 23.43.49.132
n5b.akamaiedge.net. 1271 IN A 23.43.49.134
n6b.akamaiedge.net. 1271 IN A 23.55.46.118
n7b.akamaiedge.net. 1271 IN A 23.43.49.103

;; Query time: 9 msec
;; SERVER: 210.87.251.1#53(210.87.251.1)
;; WHEN: Mon Oct 08 16:58:12 CST 2018
;; MSG SIZE rcvd: 475

; <<>> DiG 9.9.4-RedHat-9.9.4-61.el7_5.1 <<>> hk-prof.np.community.playstation.net @202.2.77.76
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36801
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 8, ADDITIONAL: 10

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;hk-prof.np.community.playstation.net. IN A

;; ANSWER SECTION:
hk-prof.np.community.playstation.net. 3600 IN CNAME wildcard.np.community.playstation.net.edgekey.net.
wildcard.np.community.playstation.net.edgekey.net. 15082 IN CNAME e13555.b.akamaiedge.net.
e13555.b.akamaiedge.net. 20 IN A 23.57.112.134

;; AUTHORITY SECTION:
b.akamaiedge.net. 1709 IN NS n5b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n6b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n7b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n0b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n1b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n2b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n3b.akamaiedge.net.
b.akamaiedge.net. 1709 IN NS n4b.akamaiedge.net.

;; ADDITIONAL SECTION:
n0b.akamaiedge.net. 647 IN A 88.221.81.192
n0b.akamaiedge.net. 647 IN AAAA 2600:1480:e800::c0
n1b.akamaiedge.net. 647 IN A 23.13.219.196
n2b.akamaiedge.net. 647 IN A 184.50.87.159
n3b.akamaiedge.net. 647 IN A 23.43.49.125
n4b.akamaiedge.net. 647 IN A 23.43.49.111
n5b.akamaiedge.net. 647 IN A 23.43.49.103
n6b.akamaiedge.net. 647 IN A 23.43.49.124
n7b.akamaiedge.net. 647 IN A 23.43.49.108

;; Query time: 496 msec
;; SERVER: 202.2.77.76#53(202.2.77.76)
;; WHEN: Mon Oct 08 16:58:51 CST 2018
;; MSG SIZE rcvd: 475

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pymumu avatar pymumu commented on May 16, 2024

小于512字节就是正常的。看日志是可能收到了无效的DNS数据包数据，导致解析失败。

length is not enouth 270:14845
这个：号左边数字是收到的DNS包长度，后面这个数字是，压缩域名在DNS包内的偏移。
这个偏移已经超过该DNS包的大小了，属于无效数据，解析就失败了。

失败的时候，可能哪里有访问指针异常，segment fault，进程退出了。

我配置一下你的这几个DNS服务器看看。

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ohmyjcc avatar ohmyjcc commented on May 16, 2024

感谢
DNS来源于https://public-dns.info/

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pymumu avatar pymumu commented on May 16, 2024

我这测试没有法复现，你那里现在还出现吗？

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ohmyjcc avatar ohmyjcc commented on May 16, 2024

我已经停止使用这个了，因为一直崩。。。
我可以把下游dnsmasq的查询日志发给您,还有smartdns的配置文件
请问如何提交

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ohmyjcc avatar ohmyjcc commented on May 16, 2024

对了，还有个问题，
有没有可能 icmp的协议是直连 tcp的是绕路？
我跟据smartdns出来的结果,进行测试 香港阿里 到香港azure好像这样 绕路了。。。
因为时间有点久了 具体是哪个Ip需要再复查一下，但是 肯定有这类的情况。

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pymumu avatar pymumu commented on May 16, 2024

将配置写到这里吧。，这里可以贴附件的。

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pymumu avatar pymumu commented on May 16, 2024

Release18应该解决了这些问题，请取用测试。

如还有问题，请reopen issue

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iovefish avatar iovefish commented on May 16, 2024

大神;

日志里面经常提示这样的错误

[2020-03-25 20:02:55,410][ERROR][ dns_server.c:2909] dns server process failed.
[2020-03-25 20:03:34,437][ERROR][ dns_server.c:2909] dns server process failed.
[2020-03-25 20:03:39,367][ERROR][ dns_server.c:2909] dns server process failed.
[2020-03-25 20:06:05,504][ERROR][ dns_server.c:2909] dns server process failed.
[2020-03-25 20:09:06,037][ERROR][ fast_ping.c:660 ] create icmp socket failed, Address family not supported by protocol
[2020-03-25 20:09:06,037][ERROR][ fast_ping.c:1021] get addr by type failed, host: [2001:4860:4860:0000:0000:0000:0000:8844]
[2020-03-25 20:09:06,040][ERROR][ fast_ping.c:660 ] create icmp socket failed, Address family not supported by protocol
[2020-03-25 20:09:06,040][ERROR][ fast_ping.c:1021] get addr by type failed, host: [2001:4860:4860:0000:0000:0000:0000:8888]

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pymumu avatar pymumu commented on May 16, 2024

你设备不支持ipv6，禁用ipv6协议。
force-AAAA-soa yes

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