When i checked the difference WSL1 is using windows routes instead of bridging with a dedicated host interface. @jenishngl you are confusing symptom, root cause (issue) and fix vs workaround. after every restart it stops working again...i have to manually edit it: Follow answered Oct 8 '20 at 19:11. installs. DNS is totally busted. sudo rm /etc/resolv.conf && sudo bash -c 'echo "nameserver 8.8.8.8" > /etc/resolv.conf' && sudo chattr +i /etc/resolv.conf. If you are using VPN software that plays with your routing tables (e.g Cisco AnyConnect) it may be redirecting access to this range, essentially blocking access. Create a new resolv.conf, however you see fit. 2. echo "[network]" | sudo tee wsl.conf (Create wsl.conf file and add the first line). was the only one working for me (20H2, 19042.746). 13 And finally in windows cmd, ps or terminal: Still facing issues with DNS resolution in windows 20H2 build with Ubuntu 20.04 on WSL2. sudo touch resolv.conf is as good a method as any. rm /etc/resolv.conf This process worked for me. Looking ahead to bleeding-edge updates I've gone so far as to make this command scriptlet an alias—redns. and this post: Sign in replace 8.8.8.8 with your preferred functional nameserver. It doesnât matter which one you pick. The issue presents itself as the inability to resolve a hostname that is known via the VPN interface. Have a question about this project? and enter nameserver 8.8.8.8. Exactly the same case, i have to downgrade to WSL1 (wsl --set-version Ubuntu 1), i tried a lot of solutions with WSL2 but i didnt get it. sudo nano /etc/resolv.conf It saves me some time and also it is a failsafe, in case I forget to do so myself. It is the issue for many people, it is the same in issue trackers/forums/etc across the internet. export DISPLAY=$(awk '/nameserver / {print $2; exit}' /etc/resolv.conf 2>/dev/null):0.0 I still don't know why nobody is tackling this issue. on my desktop: What's wrong / what should be happening instead: Thank you, it's working. Not worth spending time on this. This will kill run/resolvconf/resolv.conf and prevent it ever being created again. You will see git working fine now. Trying the above commands wiped out my existing wsl.conf file. I have tried tweaking the WSL adapter to no avail. 5. I couldn't use X11 anymore, which gives me this error message: Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable. Thought I'd share my experience/findings. The 'Home' network interface has DNS Servers = 192.168.1.1 and does not know about the private VPN DNS. and both google nameservers, had to create the wsl.conf file to stop the generation of the resolv.conf, It's a pity I need to find a work around, But I guess it is beta ♂️. After endless searching, none of the suggested workarounds (turning off firewall, manually overwriting the configuration files) found in other threads resolved the issue, so I had to revert do WSL 1.. "/etc/resolv.conf" E166: Can't open linked file for writing. @hsmyers - thanks, hadn't come across the ubuntu wsl Discourse. 8 With the dns primary and secondary getted replace the numbers in the next step in the X.X.X.X Kind regards, @hsmyers it is that with :0.0 appended in-place. https://github.com/cascadium/wsl-windows-toolbar-launcher#firewall-rules microsoft/WSL#4277 export LIBGL_ALWAYS_INDIRECT=1. Step 1: Note down the DNS servers on Windows Powershell using the command ipconfig.exe /all Step 2: Copy the existing resolv.conf and disable the ⦠You can get DNS server info using below command: Nothing is working for me. I guess the best and most stable approach right now is to just use a full Linux distribution. But after doing this, i cannot launch any app on XServer. Thanks, and reading your advice is important: If it exists, replace existing The list of nameservers must be manually built to include some sane default DNS Name Servers and the DNS from the VPN. @crispinb & @hsmyers neither one or another solution works for me. nameserver 8.8.8.8 Save the changes and restart the systemd-resolved service as shown. @gstewart, for context, can you share what version+build of Windows you are using? I spend hours and hours on just using some MS software. ), This worked perfectly for me. Verzonden: donderdag 1 oktober 2020 06:34 The solution in this post works but, I just figure out when I start Citrix VPN service, the Ethernet adapter vEthernet (WSL) goes down. we are close to a solution with X apparently, see. However, this further gives me anothe error message: Inside of WSL command line (bash, zsh etc) get your ip address via ifconfig -a look for the connection type which you are using to connect to your network (eht0, wlan0 and locate the inet address) add that address to your X0.hosts file and restart xming. Repeat step 3 and 4. I just want to share some of my experience about this issue. 2 echo "[network]" | sudo tee wsl.conf (Create wsl.conf file and add the first line). I will do more testing if i can now create a repro, without a reliable repro MS are not going to be able to troubleshoot this. Sounds like you have an networking issue not a DNS issue - could you ping external IPs? This tip fixed it. I am trying to do the same on the hyper-v networking, i am stuck at a repro; this isn't about what happens inside WSL2 - it is about the is some combination of hyper-v networking configuration state that either a) is broke or b) the developers of WSL have not accounted for. and disable auto generation of the file in /etc/wsl.conf, editing the /etc/resolv.conf file, add ". Fix DNS resolution in WSL2. We can add the WSL2 virtual machine to Device Trust, but it seems that many people will get caught right after the release. 7 In windows cmd, ps or terminal with the vpn connected do: Get-NetIPInterface or ipconfig /all for get the dns primary and As I said one need to change DNS in the immediate post if pinging works. My thesis is it is related to the restrictions mentioned here where only one NAT will work reliably - i noted my system had two vmswitches both with NAT.. re-Install procedure i used after cleaning out hyper-v and wsl and docker. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Containers can only communicate with each other if they share a network. And finally in windows cmd, ps or terminal: Get-NetAdapter | Where-Object {$_.InterfaceDescription -Match "Cisco AnyConnect"} | Set-NetIPInterface -InterfaceMetric 6000. Credit: @MartinCaccia, @yukosgiti, @machuu and @AlbesK: https://github.com/microsoft/WSL/issues/4277, https://github.com/microsoft/WSL/issues/4246, 2. As long as you donât explicitly override that behavior in /etc/wsl.conf, client DNS resolution will continue to work as expected. The windows reboot did it for me as well lmao. Much appreciated. 5. cd ~/../../etc (go to etc folder in WSL). I just parse the ip from the ip command in my .zshrc, ie. export DISPLAY=$(netstat -rn | grep -o "^0.0.0.0 \+\([0-9]\.\?\)\+" | grep -o "[^ ]\+$"):0. There should be some settings, maybe in Windows registry. I also don't want to engage in a neverending spiral of SO-style user workarounds. Cheers, mate! Then check if your network connectivity and DNS resolution have returned. Editing resolv.conf to point to a functioning nameserver "works" for the duration of the session, but as soon as the distro is rebooted resolv.conf is regenerated using WSL's original template. The WSL instance cannot resolve domain names. My DNS resolution dropped out as soon as I enabled this on the windows machine. 11 wsl --terminate Debian (Terminate WSL in Windows cmd, in case is Ubuntu not Debian). ...removing symlink for resolv.conf still recreates it with a nameserver pointing to 172.22.224.1. Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using '8.8.8.8:0' as the value of the DISPLAY variable. Reply to this email directly, view it on GitHub<. Cool. This workaround will allow you to manually override the DNS resolution through /etc/resolv.conf. This will fix your issue with fewer steps.. this is what my network looks like - only one vswitch - and all is now working (i have had same issues as rest of you for months and months and months too - now i don't.... though today my PC also updated to 20180 so small chance that fixed it too! So yes i think i am being helpful as i posted new workaround that adds context and new insight to the issue (underlying root cause) and did not repeated what has been posted multiple times. If you have the same problem I hope this will could be helpful. I disconect the vpn but the adapter doesn't start. @shoan you are totally correct. DESCRIPTION: Windows Subsystem for Linux (WSL) has a known problem with VPN based DNS. My case it is unable to ping to any of the addresses from WSL 2 when I connect to VPN (Cisco Anyconnect VPN client). (Probably there is a better way of doing this), I'm not sure if Microsoft ninjad in some fixes this latest update (it didn't look like it...) but I've finally got this working for me. At the step 5 : Error writing /etc/resolv.conf: No such file or directory I'm now back to live online again. The issue happens whenever my network interface changes. @Brokeos There's a symlink called resolv.conf in that directory already. 3 echo "generateResolvConf = false" | sudo tee -a wsl.conf (Append wsl.conf the next line). Share. HNS Container Networking - ICS DNS (TCP-In), associated to svchost.exe. Successfully merging a pull request may close this issue. I followed all the steps mentioned above and none of them worked for me. CC: Jack Stiekema
; Comment Did you ever get WSL2 working with Anyconnect? Then this is not your issue, you likely have a firewall issue or some other weird networking scenario like VPN clients mucking it up. This fixed the issue for me when I tried to start Visual Studio Code Remote Extension. I added Put the following lines in the file in order to ensure the your DNS changes do not get blown away. I can't run a single curl, As you can see it’s a linked file, not a normal file. Tried multiple things and ended up uninstalling WSL2. After a while of use this is not needed anymore. It is running on the Windows host, so you need the ⦠Eventually, I found that I had to run the following from PowerShell ubuntu2004 config --default-user . Note Hyper-V appears as unistalled, next up seeing if checking things in the hyper-v component install breaks a working sceanrio. Van: Joe Cefoli By clicking “Sign up for GitHub”, you agree to our terms of service and @crispinb how do you resolve Xserver issue? Thank you so much! Nothing worked for me. I have the exact same configuration as you. It baffles me that an issue that impairs functionality to this degree has not been acknowledged, let alone fixed 2-3 months after "release". Every server needs IP of DNS servers to which they can send their DNS queries. There is a 'Allows local LAN access' setting, however in my experience this only applies to the 192.168 subnet. soo.. for me this was caused by me starting my VPN before starting WSL. "/etc/resolv.conf" E166: Can't open linked file for writing 1. cd ~/../../etc (go to etc folder in WSL). If I downgrade the ubuntu to wsl 1 it works fine and I have connectivity with DNS resolution. I recently upgraded to 2004 and got access to WSL2. [network] I found this solution to work very well. It worked with a bunch of tcp/ip stacks on MS-DOS decades ago. What about grepping /etc/resolv.conf, I prefer to substitute this with the folloing line, so that connection to the X server does not depent on DNS settings. I tried a couple of other solutions as well, including: tick the box before "Disable access control" in Xlaunch settings. echo "nameserver 8.8.8.8" > /etc/resolv.conf, Thanks this worked for me. I'd prefer to leverage the built-in HyperV representation of the host network configuration with either a one-time config change or WSL runtime/setup tweak. 11. wsl --terminate Debian (Terminate WSL in Windows cmd, in case is Ubuntu not Debian). This worked for me. @microsoft, please look into this. MartinCaccia's solution works for me. To stop automatic generation of this file, add the following entry to /etc/wsl.conf: # [network] # generateResolvConf = ⦠4. wsl --terminate Debian (Terminate WSL in Windows cmd, in case is Ubuntu not Debian). WSL2 on 19041.53, --shutdown does not exists... but --terminate debian does exist, Just a note for point 5: I had a syslink in my case, so delete that as well and replace the file in the /etc folder directly, My case it is unable to ping to any of the addresses from WSL 2 when I connect to VPN (Cisco Anyconnect VPN client). Much thanks. Windows Sandbox and other Hyper-V VMs also cannot access the internet, https://gist.github.com/608cfe02319ce60facd76373249b8ca6#gistcomment-3471794, https://github.com/notifications/unsubscribe-auth/AKDRIMB3RZG6GVYFQMYT2HTSIJULTANCNFSM4JCLFZ2Q, https://gist.github.com/608cfe02319ce60facd76373249b8ca6#gistcomment-3473466, https://github.com/notifications/unsubscribe-auth/AKDRIMFC64XC3X6UMOP56HDSIQBB5ANCNFSM4JCLFZ2Q, https://blogs.windows.com/windows-insider/2020/10/07/announcing-windows-10-insider-preview-build-20231/, https://github.com/cascadium/wsl-windows-toolbar-launcher#firewall-rules, https://stackoverflow.com/questions/61110603/how-to-set-up-working-x11-forwarding-on-wsl2. Use WinKey + x to bring up the quick system menu and select Device Manager. RESOLUTION: Use the following shell script to clear this issue. Again, the ping is a handy tool also here: It did work after conversion from WSL1 to 2 and before reboot. I have spent two useless hours before I saw this post. having VPN tap clients installed - known hyper-v bug. I have tried all the rest of the workarounds posted but nothing works for me. and open a WSL one more time, this time the settings should be persisted as it supposed. When using WSL2, you don't want to forward X11 to the IP address of the running WSL instance. Thank you. Client DNS Resolution. You signed in with another tab or window. Neither wsl--shutdown, neither @sc0ttwad3 workaround works after that. Thanks so much for this fix! The Hyper-V Ethernet Adapter network appears to aggregate all network interfaces; I'm assuming to maximize its ability to use the host network abilities (including VPN networks), as evident by the DNS Servers list. DNS Resolution. On a fresh WSL install you should always be able to ping say 8.8.8.8 - if you can't ping you don't have a DNS issue you have a networking issue to track down. 4 wsl --terminate Debian (Terminate WSL in Windows cmd, in case is Ubuntu not Debian). Not even the gateway IP. @alonssro Nothing fancy. Moreover the resolv.conf fix is posted many many times about wsl2.. I had a problem updating my installed packages when connected to VPN. I guess this may have something to do with the firewall settings but I'm not sure. @MikeGitIt Hi Mike, can you run XSERVER with your configuration?. Clone with Git or checkout with SVN using the repository’s web address. Instantly share code, notes, and snippets. September 3, 2019 by Matt Hernandez, @fiveisprime It's been a couple of months since the initial betas for the Windows Subsystem for Linux 2 (WSL 2) were launched and I wanted to share a bit about what this is all about and how this will help you be more productive. As i could see the default route is to reach the gateway on the host, that itself failed. This worked for me! Because etc/resolv.conf is actually a symlink to run/resolvconf/resolv.conf But running GUI apps like chrome now doesn't work. nameserver 1.1.1.1 exit or in Windows cmd wsl --terminate [YourDistroName], then load it up again. @alonssro - If I were you I'd work my way though the docs on the x410 site - the best ref I've seen on wsl2 with X. Incredibly unhelpful. Based on the above evidence it seems WSL translates via the Hyper-V Virtual Ethernet Adapter (Default Switch) the IPv6 DNS server addresses to the origin adapter addresses (IPv4) and writes them to the linked /etc/resolv.conf file. Whatever the issue is it isn't WSL per-se - it is one of the other subsystems and its interaction with WSL. Be it BSODs , Visual studio slowness and now WSL2 issue. This is what my WSL and Hyper-V looks like in add remove. Onderwerp: Re: coltenkrauter/fix-wsl2-dns-resolution, ________________________________ Tried multiple things and ended up uninstalling WSL2. Windows Sandbox and other Hyper-V VMs also cannot access the internet. If you are using a VPN, you may want to avoid using Google's DNS server that the answer mentions. I assure you on a fresh system WSL 2 DNS works just like it should aka there is no general purpose issue that DNS inside WSL is broken or not operating as designed. WSL2 can't be considered out of alpha until DNS resolution works. 9 echo "nameserver X.X.X.X" | sudo tee resolv.conf (Create resolv.conf and append the line.) Then I googled this and get solutions about setting up X11 server in WSL2. This script should only have to be run once on a particular instance of WSL. If after connecting to a VPN on Windows, bash loses network connectivity, try this workaround from within bash. ), 10. echo "nameserver X.X.X.X" | sudo tee -a resolv.conf (Append the line in resolv.conf). We are supposed to use these threads to provide meaningful feedback to get the issue fixed, github issues are not intended to be a general support forum. For some reason connection was blocked even to local server.
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