[Remote-SSH Bug]: Could not establish connection with remoteServerListenOnSocket

[ziposcar]

Is there an existing issue for this bug?

• I have searched the existing issues

Required Troubleshooting Steps

• I have followed these troubleshooting steps
• I have tried both values of the remote.SSH.useLocalServer setting

Connect Locally

It connects successfully

->

No response

Expected Behavior

Successfully connected.

Steps To Reproduce

I have always turned on option remote.SSH.remoteServerListenOnSocket before. But today I got the error below. So I tried turning off the remote.SSH.remoteServerListenOnSocket and got the same error as 8943.

So I tried setting the remote.SSH.useExecServer to false, which works for me. But when I set the remote.SSH.remoteServerListenOnSocket to true, it still doesn't work.

So now my settings are:

{
    "remote.SSH.remoteServerListenOnSocket": true,
    "remote.SSH.useExecServer": false
}

My environments are

client: MacOS 13.5.2
VScode: 1.82.0
remote: debian 9

Remote-SSH Log

[12:58:41.593] Log Level: 2
[12:58:41.599] VS Code version: 1.82.0
[12:58:41.599] Remote-SSH version: remote-ssh@0.106.2
[12:58:41.599] darwin arm64
[12:58:41.663] SSH Resolver called for "ssh-remote+10.37.5.237", attempt 1
[12:58:41.663] "remote.SSH.useLocalServer": false
[12:58:41.664] "remote.SSH.showLoginTerminal": false
[12:58:41.664] "remote.SSH.remotePlatform": {"10.227.7.212":"linux","10.231.248.244":"linux","10.37.5.237":"linux"}
[12:58:41.664] "remote.SSH.path": undefined
[12:58:41.664] "remote.SSH.configFile": undefined
[12:58:41.664] "remote.SSH.useFlock": true
[12:58:41.664] "remote.SSH.lockfilesInTmp": false
[12:58:41.664] "remote.SSH.localServerDownload": auto
[12:58:41.664] "remote.SSH.remoteServerListenOnSocket": true
[12:58:41.664] "remote.SSH.showLoginTerminal": false
[12:58:41.664] "remote.SSH.defaultExtensions": []
[12:58:41.667] "remote.SSH.loglevel": 2
[12:58:41.667] "remote.SSH.enableDynamicForwarding": true
[12:58:41.667] "remote.SSH.enableRemoteCommand": false
[12:58:41.667] "remote.SSH.serverPickPortsFromRange": {}
[12:58:41.667] "remote.SSH.serverInstallPath": {}
[12:58:41.670] SSH Resolver called for host: 10.37.5.237
[12:58:41.670] Setting up SSH remote "10.37.5.237"
[12:58:41.672] Using commit id "8b617bd08fd9e3fc94d14adb8d358b56e3f72314" and quality "stable" for server
[12:58:41.674] Install and start server if needed
[12:58:41.675] PATH: /Users/liyichao/.pyenv/shims:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/puppetlabs/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Users/liyichao/Library/Application Support/JetBrains/Toolbox/scripts:/Users/liyichao/goworkspace/bin:/bin:/Users/liyichao/Library/Android/sdk/emulator:/Users/liyichao/Library/Android/sdk/platform-tools
[12:58:41.675] Checking ssh with "ssh -V"
[12:58:41.745] > OpenSSH_9.0p1, LibreSSL 3.3.6

[12:58:41.747] Running script with connection command: ssh -T -D 51520 -o ConnectTimeout=15 '10.37.5.237' bash
[12:58:42.860] > aa24dd4f3917: running
[12:58:42.861] Got some output, clearing connection timeout
[12:58:42.889] > Acquiring lock on /data00/home/liyichao/.vscode-server/bin/8b617bd08fd9e3fc94d14adb8d358b56e3f72314/vscode-remote-lock.liyichao.8b617bd08fd9e3fc94d14adb8d358b56e3f72314
> Found existing installation at /data00/home/liyichao/.vscode-server/bin/8b617bd08fd9e3fc94d14adb8d358b56e3f72314...
> Checking /data00/home/liyichao/.vscode-server/.8b617bd08fd9e3fc94d14adb8d358b56e3f72314.log and /data00/home/liyichao/.vscode-server/.8b617bd08fd9e3fc94d14adb8d358b56e3f72314.pid for a running server
> Looking for server with pid: 214633
[12:58:42.940] > Running ssh connection command... /data00/home/liyichao/.vscode-server/bin/8b617bd08fd9e3fc94d14adb8d358b56e3f72314/bin/code-server --start-server --host=127.0.0.1 --accept-server-license-terms --enable-remote-auto-shutdown  --telemetry-level all --socket-path=/run/user/1001/vscode-ssh-remote-server-sock-1694408322  &> "/data00/home/liyichao/.vscode-server/.8b617bd08fd9e3fc94d14adb8d358b56e3f72314.log" < /dev/null
> printenv:
>     SHELL=/bin/zsh
>     PWD=/data00/home/liyichao
>     LOGNAME=liyichao
>     HOME=/data00/home/liyichao
>     LANG=en_US.UTF-8
>     VSCODE_AGENT_FOLDER=/data00/home/liyichao/.vscode-server
>     SSH_CONNECTION=10.91.93.148 51521 10.37.5.237 22
>     USER=liyichao
>     SHLVL=1
>     XDG_SESSION_ID=32
>     XDG_RUNTIME_DIR=/run/user/1001
>     SSH_CLIENT=10.91.93.148 51521 22
>     PATH=/data00/home/liyichao/.cargo/bin:/usr/local/bin:/usr/bin:/bin:/usr/games
>     OLDPWD=/data00/home/liyichao
>     _=/usr/bin/printenv
> Removing old logfile at /data00/home/liyichao/.vscode-server/.8b617bd08fd9e3fc94d14adb8d358b56e3f72314.log
> Spawned remote server: 259837
> Waiting for server log...
[12:58:42.971] > Waiting for server log...
[12:58:43.166] > Waiting for server log...
>  
> *
> * Visual Studio Code Server
> *
> * By using the software, you agree to
> * the Visual Studio Code Server License Terms (https://aka.ms/vscode-server-license) and
> * the Microsoft Privacy Statement (https://privacy.microsoft.com/en-US/privacystatement).
> *
>  
> aa24dd4f3917: start
> SSH_AUTH_SOCK====
> DISPLAY====
> webUiAccessToken====
> listeningOn==/run/user/1001/vscode-ssh-remote-server-sock-1694408322==
> osReleaseId==debian==
> arch==x86_64==
> vscodeArch==x64==
> bitness==64==
> tmpDir==/run/user/1001==
> platform==linux==
> unpackResult====
> didLocalDownload==0==
> downloadTime====
> installTime====
> extInstallTime====
> serverStartTime==123==
> connectionToken==1a11aa1a-111a-1aaa-a1a1-1111a1aaa111==
> aa24dd4f3917: end
[12:58:43.167] Received install output: 
SSH_AUTH_SOCK====
DISPLAY====
webUiAccessToken====
listeningOn==/run/user/1001/vscode-ssh-remote-server-sock-1694408322==
osReleaseId==debian==
arch==x86_64==
vscodeArch==x64==
bitness==64==
tmpDir==/run/user/1001==
platform==linux==
unpackResult====
didLocalDownload==0==
downloadTime====
installTime====
extInstallTime====
serverStartTime==123==
connectionToken==1a11aa1a-111a-1aaa-a1a1-1111a1aaa111==

[12:58:43.167] Failed to parse remote port from server output
[12:58:43.170] Resolver error: Error: 
	at g.Create (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:637875)
	at t.handleInstallOutput (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:635278)
	at t.tryInstall (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:756874)
	at async /Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:717466
	at async t.withShowDetailsEvent (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:720719)
	at async C (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:714380)
	at async t.resolve (/Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:718115)
	at async /Users/liyichao/.vscode/extensions/ms-vscode-remote.remote-ssh-0.106.2/out/extension.js:2:901741
[12:58:43.172] ------

Anything else?

No response

[ziposcar]

I've tried reinstalling and restarting, but nothing works.

[hxzhao527]

I rollback Remote - SSH to v0.105.1, work fine.

[kevin-valerio]

I rollback Remote - SSH to v0.105.1, work fine.

Thanks. Version 0.106.1 seems also stable for me.

[ziposcar]

I rollback Remote - SSH to v0.105.1, work fine.

Thanks. Version 0.106.1 seems also stable for me.

I got same error at version 0.106.1. Do you set remote.SSH.remoteServerListenOnSocket to true?

I found that the latest version that is stable for me is 0.106.0.

[kevin-valerio]

I rollback Remote - SSH to v0.105.1, work fine.

Thanks. Version 0.106.1 seems also stable for me.

I got same error at version 0.106.1. Do you set remote.SSH.remoteServerListenOnSocket to true?

I found that the latest version that is stable for me is 0.106.0.

Weird. remoteServerListenOnSocket is also enabled for me, yes.

[chrisber]

Same problem here. Installing Version 0.106.1 on Remote worked. Thx!

[filipenos]

same problem here. Installing Version 0.106.1 fix

[ziposcar]

I think I got the rule. During "remote.SSH.remoteServerListenOnSocket": true:
"remote.SSH.useExecServer": true is work for me with version 0.106.1, and "remote.SSH.useExecServer": false will throw errors.
But
"remote.SSH.useExecServer": false is work for me with version 0.106.2, and "remote.SSH.useExecServer": true will throw errors.
lol. Hope this information helps.

[tiagovrtr]

I'm experiencing the same issue with 0.106.2 with remote.SSH.remoteServerListenOnSocket" set to either true or false, rolling back to 0.105.1 seems to solve the issue

[raspersi]

Same here, switched to 0.105.1 and it works fine. Btw It took me several hours to realize what the problem is.

[HarryHung]

Similar issue, was able to establish initial connection, but then got disconnected shortly, VS Code automatically attempt to reconnect a few times, and then stopped by an error message.

Rolled back to 0.106.1 seems to fix the issue for me as well.

[zjysteven]

Similar here. I was getting "Cannot reconnect. Please reload the window." error, and switching back to 0.105.1 fixed it.

[frank-hopkin-accrisoft]

Similar here. I was also getting "Cannot reconnect. Please reload the window." error, and switching back to 0.105.1 fixed it for me as well.

[doctornkz-intelas]

The same issue, reverted to 105,
ps. once the client hunged up my sft-okta agent and I restarted the bastion forcefully.

[blakeduffey]

Reporting same - vscode connecting to remote system hangs. Roll back extension - works again.

[SomervilleTom]

Same bug here. Remote machine is AWS EC2 instance running Rocky Linux. Local machine is Windows 10 Pro.

Unable to establish any remote connection.

I will GREATLY appreciate a pointer to how I can revert my "Remote SSH" extension, since that seems to be the issue. I don't see anything in the VSCode UI that allows me to revert to an earlier version of "Remote SSH".

[zjysteven]

I rollback Remote - SSH to v0.105.1, work fine.

@SomervilleTom see this comment

[SomervilleTom]

I rollback Remote - SSH to v0.105.1, work fine.

@SomervilleTom see this comment

AWESOME! This is exactly what I needed, thank you!

[SomervilleTom]

Reverting "Remote SSH" to v105.1 solved it for me (props to @zjysteven for the quick tip).

Sounds like a bug in "Remote SSH"? Might also be worth exploring why this bug wasn't picked up in release testing for the combination of vscode 1.82 and "Remote SSH" versions after 105.1.

[stephenfrost]

In local settings (i.e., under "user" in settings, remote SSH) I have this:
"remote.SSH.useExecServer": false
And on remote server settings (i.e., under "remote <server_name>" in settings, remote SSH) I have this (within <home dir>/.vscode-server/data/Machine/settings.json):
"remote.SSH.remoteServerListenOnSocket": true

The above settings work for me up to remote SSH extension version "v0.106.0" but not any of the following more recent versions:

• v0.106.1 (release)
• v0.106.2 (release)
• v0.106.3 (release)
• v0.107.2023091115 (pre-release)

Something changed between 0.106.0 and 0.106.1 to make the above settings not work. Or else it's a difference in interaction between these versions and VS Code release version 1.82.0.

Other info:
All the above are with AllowStreamLocalForwarding turned on in remote server's sshd_config file.
Setting "remote.SSH.useExecServer" to true would not work for me in any version, because my remotes don't have Internet access. This issue sheds some light on problem with this setting: #8926. A fix from MS is expected.

[diego-santacruz]

I also experience the same problem when I set remoteServerListenOnSocket = true.
Note that I have useExecServer = true.
The problem is present in 0.106.2 and 0.106.3. Installing version 0.106.1 fixes the issue for me.

[Nuthouse01]

I have been suffering from the same problem all morning! Thank you very much for the fix, downgrading from v0.106.3 to v0.105.0 has fixed it for me!! One of my failed connection logs is attached, just in case.
vscode-cant-connect.txt

[atsuyaourt]

I also experience the same problem when I set remoteServerListenOnSocket = true. Note that I have useExecServer = true. The problem is present in 0.106.2 and 0.106.3. Installing version 0.106.1 fixes the issue for me.

I can confirm that 0.106.1 is working

[ziposcar]

FYI. The latest v0.107.2023091115 is not worked, but v0.107.2023090815 is fine.

[roblourens]

This will be released in 0.106.4 shortly

[Nuthouse01]

I confirm that my problem is solved with 0.106.4. I never changed any of my settings. Thanks for the quick response!