Error on Windows

[hoegertn]

When I try to connect using Windows I get the error ssh: Could not resolve hostname i-abcd:

The command ec2connect match ... is returning the correct %errorlevel% but ec2connect connect --instance-id i-abcd --user ec2-user --port 22 return:

panic: sending ssh key to instance: InvalidParameter: 1 validation error(s) found.
- minimum field size of 256, SendSSHPublicKeyInput.SSHPublicKey.

goroutine 1 [running]:
github.com/glassechidna/ec2connect/cmd.init.0.func1(0xc000188f00, 0xc0000dc660, 0x0, 0x6)
        /github/workspace/cmd/connect.go:34 +0x1b1
github.com/spf13/cobra.(*Command).execute(0xc000188f00, 0xc0000dc5a0, 0x6, 0x6, 0xc000188f00, 0xc0000dc5a0)
        /go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:830 +0x2b5
github.com/spf13/cobra.(*Command).ExecuteC(0x16baee0, 0xbbeb29, 0xc0000f7f88, 0xc00004c058)
        /go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:914 +0x303
github.com/spf13/cobra.(*Command).Execute(...)
        /go/pkg/mod/github.com/spf13/cobra@v0.0.5/command.go:864
main.main()
        /github/workspace/main.go:8 +0x35

Any idea what I am doing wrong? I tried it from different Windows installations. AWS credentials and region are set.

[aidansteele]

I think it's likely you are doing nothing wrong and it's just a bug in ec2connect! I won't have access to a Windows machine for a few hours, but in the mean time we can try to debug this.

Can you share the contents of your ~/.ssh/ec2connect/ssh_config file? I'm guessing it might be a file path issue, e.g. forward slashes vs back slashes, etc.

[aidansteele]

Looks like I have my work cut out for me on Windows. This is what I have so far:

PS C:\Users\Administrator> ssh -vvv ec2-user@i-026bbf8b58ea1a442
OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5
debug1: Reading configuration data C:\\Users\\Administrator/.ssh/config
debug1: C:\\Users\\Administrator/.ssh/config line 1: include ~/.ssh/C:\\Users\\Administrator\\.ssh\\ec2connect/ssh_config matched no files
debug3: Failed to open file:C:/ProgramData/ssh/ssh_config error:2
debug2: resolving "i-026bbf8b58ea1a442" port 22
ssh: Could not resolve hostname i-026bbf8b58ea1a442: No such host is known.

At this point I modified ~/.ssh/config to read Include ec2connect/ssh_config (i.e. a relative path rather than absolute). Then I got this:

PS C:\Users\Administrator> ssh -vvv ec2-user@i-026bbf8b58ea1a442
OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5
debug1: Reading configuration data C:\\Users\\Administrator/.ssh/config
debug3: C:\\Users\\Administrator/.ssh/config line 1: Including file C:\\Users\\Administrator/.ssh/ec2connect/ssh_config depth 0
debug1: Reading configuration data C:\\Users\\Administrator/.ssh/ec2connect/ssh_config
debug2: checking match for 'exec "ec2connect match --host %n --user %r"' host i-026bbf8b58ea1a442 originally i-026bbf8b58ea1a442
debug3: C:\\Users\\Administrator/.ssh/ec2connect/ssh_config line 2: matched 'exec "ec2connect match --host i-026bbf8b58ea1a442 --user ec2-user"'
debug2: match found
debug3: Failed to open file:C:/ProgramData/ssh/ssh_config error:2
debug1: Executing proxy command: exec ec2connect connect --instance-id i-026bbf8b58ea1a442 --user ec2-user --port 22
debug3: spawning "C:\\Windows\\System32\\OpenSSH\\ec2connect connect --instance-id i-026bbf8b58ea1a442 --user ec2-user --port 22"
CreateProcessW failed error:2
posix_spawn: No such file or directory

For some reason (that I haven't yet investigated), it is trying to execute C:\Windows\System32\OpenSSH\ec2connect rather than using the one on the PATH. I'll keep digging.

EDIT: Looks like this was addressed in 7.9, but my default installation is 7.7: https://github.com/PowerShell/Win32-OpenSSH/issues/1185.

I then modified my ~/.ssh/ec2connect/ssh_config to read ProxyCommand C:\Users\Administrator\scoop\shims\ec2connect.exe connect --instance-id %h --user %r --port %p and it now works. You should be able to use this workaround until I am able to fix this in the next version of ec2connect

EDIT 2: Reviewing your first post, it appears this probably won't fix your issue as your error message is unrelated. 🤔

[hoegertn]

After doing these changes the original error went away and I could reproduce your errors. But at the end I get

debug1: No more authentication methods to try.
e2-user@i-abcd: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).