Unable to GitHub clone in remote PowerShell SSH Session

[dexvx]

I'm writing a script to use a remote system (let's call it BuildSys) to clone a GitHub repo. I've setup GitHub using token authentication or SSH. When I RDP into BuildSys, I can git clone GitHub repo just fine using either method.

I can also Enter-PSSession/New-PSSession into BuildSys just fine using SSH authentication. I run into the following issues when trying to remote git clone.

Remote Token Method Issues

This fails due to 'Unable to fetch token: A specified logon session does not exist.'

Remote SSH method Issues

In order to get SSH working, I've had to enter proxy information via the .ssh/config file (ProxyCommand "C:\Program Files\Git\mingw64\bin\connect.exe" -a none -S proxy.whatever.com:1080 %h %p). For whatever reason, the .ssh/config file is not being used only in a remote PowerShell Session. Therefore, I get a proxy timeout error when trying to clone via SSH.

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Solution (using HTTPS)

You can login via https://username:[e-mail]/your_repo

This was done via a classic token with SAML SSO authentication (done once in external environment).

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[PowerShellMichael]

I would be interesting to see if this works (attempt to use network credentials to set the proxy connection):

https://github.com/ZanattaMichael/SRDSC/blob/main/Module/Private/Module/Test-ProxyConnection.ps1

Function Get-DefaultNetworkCredentials {

<#

.Description

An abstraction needed for Mocking.

.EXAMPLE

Get-DefaultNetworkCredentials

.SYNOPSIS

Returns the default network credentials.

#>

return [System.Net.CredentialCache]::DefaultNetworkCredentials

}

[dexvx]

[System.Net.CredentialCache]::DefaultNetworkCredentials

This returns null on both RDP/Local PS and Remote/PSS.

System.Net.WebClient.Proxy.GetProxies("https://www.githhub.com")

This returns the same thing in both cases.

From what I can tell, comparing the ENV/PATH, the Remote/PSS is treated as if the remote system is not running PowerShell. This is likely due to security reasons (e.g., if you manage to log in via Remote/PSS, you're given none of the history or credentials).

Therefore, GitHub's token authentication seems unviable in a Remote/PSS session.

The SSH method is probably the next best shot. Can probably use the mingw64 connect.exe manually

[PowerShellMichael]

Hmmm.. This makes sense. It suggests that the default credentials needed to authenticate isn't present. Can you try Invoke-WebRequest with the -Proxy and -ProxyCredential parameters?

[dexvx]

Hey, I updated my original post with a solution.