Failed to retrieve IDEs: nodename nor servname provided,or not known

[MrPeacockNLB]

Description

For me is #477 not fixed. This happens with latest main release of Coder v2.18.0 and latest Jetbrains Gateway 2024.3. Coder provider plugin is at version 2.15.1.

As one could see the --bg host is not found on a Windows machine. Even the entry is in ssh config file. Curious is that the same Workspace (we open IntelliJ via Button and using URI handler) works on a linux system. It seems this has something to do with Windows implementation.

This is a blocker for us as it is unable to start new IntelliJ based workspaces from Windows clients.

[Bert-Derijckere]

I am running into the same problem on a Windows machine. I've tried the connection from within IntelliJ Ultimate and from within Jetbrains Gateway.

There seems to be a problem in de SSH config. I cannot even connect with plain ssh.

I run coder config-ssh, I can see the changes in ~/.ssh/config. When I run ssh coder.a, I get the following output:

/bin/sh: line 0: exec: C:Usersb.derijckereAppDataLocalcoder-gateway82pk376jkrj44.pit-1.try.coder.appcoder-windows-amd64.exe: not found
kex_exchange_identification: Connection closed by remote host

It seems to want to fail to execute the ProxyCommand

If I change the single \ in the ProxyCommand to \, from ProxyCommand C:\Users\b.derijckere\AppData\Local\coder-gateway\82pk376jkrj44.pit-1.try.coder.app\coder-windows-amd64.exe ... to ProxyCommand C:\\Users\\b.derijckere\\AppData\\Local\\coder-gateway\\82pk376jkrj44.pit-1.try.coder.app\\coder-windows-amd64.exe ..., then the SSH connection succeeds.

Unfortunately, I cannot make the same changes in de config for the Host coder-jetbrain--... since that config is overwritten by the coder-gateway plugin each time.

---

Coder version:

Coder v2.18.1+765d99c Mon Dec 16 19:49:21 UTC 2024
https://github.com/coder/coder/commit/765d99caa31bbd0108286846c594cb18031fe962

Slim build of Coder, does not support the  server  subcommand.

Coder plugin version in JetBrains Gateway en IntellijJ Ultimate: 2.15.1

[code-asher]

Oh interesting, sounds like we need to update the config to use the double slashes. I wonder if it works when the shell is command prompt or powershell, but not sh?

[MrPeacockNLB]

@code-asher let me know if I can support you or if you need more information.

[code-asher]

I am not currently able to work on the plugin, but definitely happy to review any PRs. One trick here though is that I think we may need to make sure it still works for Powershell/command prompt as well, although I think the double slash syntax would work there as well?

[code-asher]

I will bring up the issue at our next planning meeting though and see if someone can take it.

[isaacte]

Same problem here when trying to connect from the Jetbrains Gateway. Using the manual configuration via SSH does not have any problem.

[djarbz]

I am experiencing a similar issue on Windows.
This is a brand new computer and I just installed Gateway.
JetBrains Gateway 2024.3.3 Build #GW-243.24978.56
Coder version: 2.18.0

Clicking on the IDE launcher from the Workspace dashboard launches Gateway.

As far as I can tell, nothing is written to my ssh config file.
I did notice in the idea.log that it was having difficulty with the ssh agent, to which I noticed that the OpenSSH Authentication Agent service was disabled. I started that, but still have the above error.

I then installed the coder CLI and generated the coder block in my ssh config, still no luck.
However, I noticed that my hostname is actually coder-jetbrains-coder.domain.com-bg--user-workspace.main so I duplicated the block and updated the hostname to Host coder-jetbrains-coder.*.
Now it gets further, but still fails to connect.

#c.i.s.ProxyCommand - End of Process[pid=14416, exitValue=1] stderr: 
Encountered an error running "coder ssh", see "coder ssh --help" for more information
error: Resource not found or you do not have access to this resource

Sanitized Gateway Log for the attempt.

2025-02-16 00:11:11,814 [  26441]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Loading global entities com.intellij.platform.workspace.jps.entities.SdkEntity from files
2025-02-16 00:11:11,816 [  26443]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Loading global entities com.intellij.platform.workspace.jps.entities.LibraryEntity from files
2025-02-16 00:11:11,826 [  26453]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Saving global entities com.intellij.platform.workspace.jps.entities.SdkEntity to files
2025-02-16 00:11:11,827 [  26454]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Saving global entities com.intellij.platform.workspace.jps.entities.LibraryEntity to files
2025-02-16 00:11:11,875 [  26502]   INFO - #c.i.a.o.PathMacrosImpl - Saved path macros: {}
2025-02-16 00:11:11,877 [  26504]   INFO - #c.i.c.ComponentStoreImpl - Saving appActionMacroManager took 34 ms
2025-02-16 00:11:17,431 [  32058]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Saving global entities com.intellij.platform.workspace.jps.entities.SdkEntity to files
2025-02-16 00:11:17,432 [  32059]   INFO - #c.i.w.i.i.j.s.JpsGlobalModelSynchronizerImpl - Saving global entities com.intellij.platform.workspace.jps.entities.LibraryEntity to files
2025-02-16 00:11:18,318 [  32945]   INFO - CoderRemoteConnectionHandle - Connecting to remote worker on coder-jetbrains-coder.example.com--<USER>--<WORKSPACE>.main... (attempt 3)
2025-02-16 00:11:18,359 [  32986]   INFO - net.schmizz.sshj.transport.random.JCERandom - Creating new SecureRandom.
2025-02-16 00:11:18,382 [  33009]   INFO - #c.i.s.ProxyCommand - ProxyCommand for coder-jetbrains-coder.example.com-bg--<USER>--<WORKSPACE>.main:22: "C:\Program Files\Coder\bin\coder.exe" --global-config C:\Users\<USER>\AppData\Roaming\coderv2 ssh --stdio --ssh-host-prefix coder. coder-jetbrains-coder.example.com-bg--<USER>--<WORKSPACE>.main
2025-02-16 00:11:18,385 [  33012]   INFO - #c.i.s.ProxyCommand - Started ProxyCommand for coder-jetbrains-coder.example.com-bg--<USER>--<WORKSPACE>.main:22: Process[pid=14416, exitValue="not exited"]
2025-02-16 00:11:18,385 [  33012]   INFO - #c.i.s.i.s.sshj - Client identity string: SSH-2.0-IntelliJ__Gateway_GW-243.24978.56__SSHJ_0.38.1_SNAPSHOT
2025-02-16 00:11:20,663 [  35290]   WARN - #c.i.s.i.s.sshj - Received end of connection, but no identification received. 
2025-02-16 00:11:20,664 [  35291]   INFO - #c.i.s.ProxyCommand - End of Process[pid=14416, exitValue=1] stderr: 
Encountered an error running "coder ssh", see "coder ssh --help" for more information
error: Resource not found or you do not have access to this resource
2025-02-16 00:11:20,670 [  35297]   WARN - #c.i.s.ProxyCommand - Process[pid=14416, exitValue=1] exited with code 1
2025-02-16 00:11:20,671 [  35298] SEVERE - CoderRemoteConnectionHandle - Failed to connect (attempt 3; will retry in 19091 ms)
java.lang.Throwable: Failed to connect (attempt 3; will retry in 19091 ms)
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:376)
	at com.coder.gateway.CoderRemoteConnectionHandle$connect$1$2.invoke(CoderRemoteConnectionHandle.kt:144)
	at com.coder.gateway.CoderRemoteConnectionHandle$connect$1$2.invoke(CoderRemoteConnectionHandle.kt:76)
	at com.coder.gateway.util.RetryKt.suspendingRetryWithExponentialBackOff(Retry.kt:62)
	at com.coder.gateway.util.RetryKt$suspendingRetryWithExponentialBackOff$1.invokeSuspend(Retry.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:102)
	at com.intellij.openapi.rd.util.CoroutineProgressContext$Companion$create$task$1$3.invokeSuspend(BackgroundProgressCoroutineUtil.kt:292)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:277)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:111)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$BuildersKt__BuildersKt(Builders.kt:84)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:52)
	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:48)
	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
	at com.intellij.openapi.rd.util.CoroutineProgressContext$Companion.create$lambda$2(BackgroundProgressCoroutineUtil.kt:288)
	at com.intellij.openapi.rd.util.CoroutineProgressContext$Companion$createBackgroundable$1$1.run(BackgroundProgressCoroutineUtil.kt:311)
	at com.intellij.openapi.progress.impl.CoreProgressManager.startTask(CoreProgressManager.java:491)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.startTask(ProgressManagerImpl.java:133)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsynchronously$7(CoreProgressManager.java:542)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:249)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:98)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:223)
	at com.intellij.platform.diagnostic.telemetry.helpers.TraceKt.use(trace.kt:45)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:222)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$14(CoreProgressManager.java:674)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:749)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:705)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:673)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:79)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:203)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:98)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$5(ProgressRunner.java:249)
	at com.intellij.openapi.progress.impl.ProgressRunner$ProgressRunnable.run(ProgressRunner.java:502)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$launchTask$18(ProgressRunner.java:467)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:103)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:103)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:109)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:103)
	at com.intellij.openapi.progress.impl.ProgressRunner.lambda$launchTask$19(ProgressRunner.java:463)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:735)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:732)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:732)
	at java.base/java.lang.Thread.run(Thread.java:1583)
2025-02-16 00:11:20,672 [  35299] SEVERE - CoderRemoteConnectionHandle - JetBrains Gateway 2024.3.3  Build #GW-243.24978.56
2025-02-16 00:11:20,672 [  35299] SEVERE - CoderRemoteConnectionHandle - JDK: 21.0.6; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o.
2025-02-16 00:11:20,673 [  35300] SEVERE - CoderRemoteConnectionHandle - OS: Windows 11
2025-02-16 00:11:20,673 [  35300] SEVERE - CoderRemoteConnectionHandle - Plugin to blame: Coder version: 2.18.0
2025-02-16 00:11:20,673 [  35300] SEVERE - CoderRemoteConnectionHandle - Last Action: 
2025-02-16 00:11:37,072 [  51699]   INFO - CoderRemoteConnectionHandle - Connection canceled due to JobCancellationException

[djarbz]

I was able to successfully connect on my older laptop.

Here is the ssh config

Host coder-jetbrains--<WORKSPACE>.main--coder.domain.com
  ProxyCommand "C:\Users\<USER>\AppData\Local\coder-gateway\coder.domain.com\coder-windows-amd64.exe" --global-config "C:\Users\<USER>\AppData\Local\coder-gateway\coder.domain.com\config" ssh --stdio <WORKSPACE>.main
  ConnectTimeout 0
  StrictHostKeyChecking no
  UserKnownHostsFile /dev/null
  LogLevel ERROR
  SetEnv CODER_SSH_SESSION_TYPE=JetBrains

And coder CLI version

>coder-windows-amd64.exe --version
Coder v2.19.0+2f32b11 Tue Feb  4 07:53:51 UTC 2025
https://github.com/coder/coder/commit/2f32b11831a236ed550f35b2296b8f948eb64f4e

Jetbrains 2024.1.1
Coder Plugin 2.10.0

[djarbz]

I just updated the plugin on the laptop, I go a No Connection Handle returned error when it tired to connect to the workspace.
Clicked OK, but now is failing to connect with the coder-jetbrains-coder.domain.com-bg--user-workspace.main style URL.

I think I can confidently say the issue is with the new connection URL.

I also checked my DNS logs when trying to connect from my new PC after adding the corrected ssh config host and there is a query for the new style URL, which obviously fails to resolve.

[code-asher]

For anyone on 2.18.1, the problem might be #534.

For pre-2.18.1, the problem is something else.