WSL Cannot undertand linux host with mirrored mode and custom domain name

[Dokman]

Windows Version

Microsoft Windows [Versión 10.0.22631.2715]

WSL Version

2.0.11.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.133.1-1

Distro Version

Ubuntu 20.04

Other Software

Docker Desktop: 4.25.2

Repro Steps

Use mirrored in networking, set hosts file in windows to point your lAN ip 192.168.1.x hostname.name

Expected Behavior

Enter into the website

Actual Behavior

Refuses to connect but outside network is working

Diagnostic Logs

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

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Note: You can give me feedback by thumbs upping or thumbs downing this comment.

[Dokman]

After a new fresh install with Ubuntu 22.0.4 it's the same, connection refused

[chanpreetdhanjal]

Could you please follow the steps below and attach the diagnostic logs? https://github.com/microsoft/WSL/blob/master/CONTRIBUTING.md#collect-wsl-logs-for-networking-issues

[CatalinFetoiu]

@Dokman, can you please try setting dnsTunneling=true, restart WSL and retry your scenario?

In mirrored mode, in order for Windows DNS policies (such as the Windows hosts file) to be applied to WSL DNS traffic, dnsTunneling must be enabled

thanks

[Dokman]

it doesn't work too. sorry for being inactive too long, i was having troubles i tried with dnsTunneling=true but it doesn't work too

[CatalinFetoiu]

@Dokman thanks for following up. Can you please collect networking logs using instructions below? The script will create a zip with name starting with "WslNetworkingLogs"

https://github.com/microsoft/WSL/blob/master/CONTRIBUTING.md#collect-wsl-logs-for-networking-issues

please also share the name you are trying to resolve and is not working, so we can look for that in the traces

thanks

[Dokman]

i'm trying to access to my nginx that i've made but it doesn't work i'll upload the zip

WslLogs-2024-04-03_19-34-49.zip

[github-actions]

The log file doesn't contain any WSL traces. Please make sure that you reproduced the issue while the log collection was running.

Diagnostic information

.wslconfig found
Detected appx version: 2.2.1.0
Found no WSL traces in the logs

[CatalinFetoiu]

@Dokman please use the networking script (https://github.com/microsoft/WSL/blob/master/diagnostics/collect-networking-logs.ps1).

It looks like you used the regular https://github.com/microsoft/WSL/blob/master/diagnostics/collect-wsl-logs.ps1

can you please also share the name you are trying to resolve? from your description, I see "hostname.name"

thanks

[Dokman]

@Dokman please use the networking script (https://github.com/microsoft/WSL/blob/master/diagnostics/collect-networking-logs.ps1).

It looks like you used the regular https://github.com/microsoft/WSL/blob/master/diagnostics/collect-wsl-logs.ps1

can you please also share the name you are trying to resolve? from your description, I see "hostname.name"

thanks

I was trying to resolve localhost and 192.168.1.130 if I can't connect to the IP I cannot connect to the nginx hahahah

WSLConfig

[wsl2]
memory=16GB
networkingMode=mirrored
dnsTunneling=true
autoProxy=true
firewall=true
debugConsole=true
dnsProxy=true

[experimental]
useWindowsDnsCache=true
hostAddressLoopback=true

[CatalinFetoiu]

thanks. a few follow up questions to better understand your scenario

how are you configuring the 192.168.1.130 IP? is it an IP assigned to Windows?
are you connecting to 192.168.1.130 from inside WSL or from Windows?
how are you using nginx?
are you adding configurations to the Windows hosts file? from your description it sounds like that's the case

[Dokman]

thanks. a few follow up questions to better understand your scenario

how are you configuring the 192.168.1.130 IP? is it an IP assigned to Windows? are you connecting to 192.168.1.130 from inside WSL or from Windows? how are you using nginx? are you adding configurations to the Windows hosts file? from your description it sounds like that's the case

Yes that's my windows IP, so if i want to test it on my end localhost doesn't work too. The network is mirrored, yes, but doesn't loopback or get any feedback from the server.

i'm not adding any windows hosts editing there's my log
WslNetworkingLogs-2024-04-03_21-04-30.zip

PSA: I've disabled the firewall because it's having error too with firewall disabled too

[github-actions]

Diagnostic information

.wslconfig found
Detected appx version: 2.2.1.0

[CatalinFetoiu]

are you connecting from Windows to a Linux server listening on 192.168.1.130? or the opposite way (connecting from Linux to a Windows server listening on 192.168.1.130)? what is the port you are connecting to?

[Dokman]

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4 participants

i'm trying to connect my windows to the linux wsl machine, it's the same machine they are the same ip because it's the same machine

[CatalinFetoiu]

thanks. from the Linux tcpdump output in the logs you shared, I see SYN packets sent to 192.168.1.130, port 80 reaching Linux, but I don't see a reply from the server listening on 192.168.1.130, port 80

do you have logs from your nginx server (I assume nginx is the server listening on 192.168.1.130, port 80), where you can check if nginx received the connection request?

[Dokman]

idk, i can install an apache if needed

PSA: Log with apache2

[Dokman]

WslNetworkingLogs-2024-04-03_23-14-02.zip

[github-actions]

Diagnostic information

.wslconfig found
Detected appx version: 2.2.1.0

[Dokman]

After adding the firewall Rules works outside my PC but in localhost mode it doesn't work so i can't work in my pc vieweing anything

[CatalinFetoiu]

thanks for your quick responses and patience for this issue

from the latest logs you shared, I see the same case of SYN packets being sent to 192.168.1.130, port 80 reaching Linux, then there is no reply from the server listening on 192.168.1.130, port 80

can you please share the steps you use to install and start the nginx or apache2 server? I can try to reproduce this on my setup.

[Dokman]

I'm using a default config, so i cannot understand how it doesn't connect
default.zip

[github-actions]

Failed to parse logs. Unexpected file: default.conf
The log file doesn't contain any WSL traces. Please make sure that you reproduced the issue while the log collection was running.

Diagnostic information

Found no WSL traces in the logs

[CatalinFetoiu]

thanks. I tried installing nginx (looking at the /etc/nginx/ folder, nginx has the same default config as you shared) - unfortunately I was not able to repro the issue

one additional question: are you running nginx inside a container, such as Docker?

a few things to try:

1. we have seen compat issues with localhost communication between Windows and Linux not working when the Linux "network manager" service is running (similar issue - Networking mirrored can't work on WSL2 #10632)

Can you run "systemctl status network-manager.service" and if it shows the service as running, try disabling it using "systemctl disable network-manager.service", then retry your scenario.

2. we have seen issues when a Linux application will listen on IPv6, but localhost communication between Windows and Linux is not supported for IPv6, it's only supported for IPv4 at the moment.

Can you run "netstat -tlnp" and verify the output is similar to the one below, showing a listener on port 80 on IPv4 and one listener on IPv6

netstat -tlnp
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.255.255.254:53 0.0.0.0:* LISTEN -
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN -
tcp6 0 0 :::80 :::* LISTEN -

[Dokman]

So you will tell me, i'm not using docker to listen to any port right now

On an External end works

[Dokman]

so i cannot curl it

[Dokman]

My windows was borken after a Windows 11 reinstall worked well