WSL2 默认端口占用问题

[Ryu-Z]

基础配置

window11 22H2
WSL2
wslhost.exe 占用 53 端口

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问题

WSL2默认占用53端口, 我修改smartdns的端口为5353, 用dig或者nslookup都可以解析, 也就是说smartdns 安装部署是没有问题的.
现在剩下的问题是怎么把电脑的DNS修改为127.0.0.1:5353, 我搜索出来一个铁子是windows10的配置, 说网卡选项卡高级里面有修改
DNS端口的配置, 但是我在windows11上面没看到修改DNS nameserver端口的配置

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求解

请问社区的同学们, windows11 电脑上面 WSL 安装 smartdns 都是怎么配置 dns nameserver的?

[PikuZheng]

考虑使用桥接网卡或ipv6服务地址

[Ryu-Z]

netstat -nalp|grep :53
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN -
udp 0 0 127.0.0.53:53 0.0.0.0:* -

[Ryu-Z]

sudo systemctl restart smartdns.service
log-level debug
[2023-09-24 19:42:21,727][NOTICE][ smartdns.c:485 ] smartdns starting...(Copyright (C) Nick Peng [email protected], build: Aug 11 2023 19:38:34)
[2023-09-24 19:42:21,729][ INFO][ dns_server.c:7083] auto enable cache persist.
[2023-09-24 19:42:21,729][ INFO][ dns_cache.c:824 ] load cache file /var/cache/smartdns/smartdns.cache, total 1 records
[2023-09-24 19:42:21,729][ERROR][ dns_server.c:6789] bind service [::]:53 failed, Address in use
[2023-09-24 19:42:21,729][ERROR][ dns_server.c:7179] create server socket failed.
[2023-09-24 19:42:21,729][ERROR][ smartdns.c:535 ] start dns server failed.

[PikuZheng]

#1066 (comment) 供参考。
据说wsl1是可以正常绑53的，未测试。后来我放弃windows的容器了，也没再试过

[Ryu-Z]

我将地址改成了: bind [::1]:53, 启动成功了, 看来是启动的时候某些网卡上面的ip还是被占用了, 指定本地ipv6 ip 就起来了

[Ryu-Z]

另外测试了一下用 WSL2的ip(此ip默认不固定): bind: 172.30.253.165:53
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:15:5d:1c:46:77 brd ff:ff:ff:ff:ff:ff
inet 172.30.253.165/20 brd 172.30.255.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::215:5dff:fe1c:4677/64 scope link
valid_lft forever preferred_lft forever
电脑配置此ip是可以解析成功的
另外看到一个最新的帖子说WSL2的ip也可以固定了 https://zhuanlan.zhihu.com/p/657110386