Question:
I am attempting to use FTP in Powershell to upload a file. I am using FtpWebRequest later followed by GetRequestStream, but this method is returning an error:
“The requested FTP command is not supported when using HTTP proxy.”
I am indeed behind a proxy and required to be.
How can I upload via Powershell when behind a proxy?
This would be solely run from a .ps1 Powershell script.
I have also tried:
|
1 2 3 4 5 |
$webclient = New-Object System.Net.WebClient $uri = New-Object System.Uri($server) $webclient.UploadFile($uri, "C:\Test\1234567.txt") |
Where $server and that file are valid. But that code returns this error:
|
1 2 3 4 5 6 |
"An exception occurred during a WebClient request." At C:\Test\script.ps1:101 char:26 + $webclient.UploadFile <<<< ($uri, "C:\Test\1234567.txt") + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException |
I also tried double backslashes in the file paths, didn’t help.
The proxy I am under only touches HTTP, and not FTP.
Answer:
Are you sure your proxy supports FTP, or is it HTTP only? See this thread:
FTP File Upload with HTTP Proxy
For WebClient I’ve used this in the past although it was for HTTP use, but you could give it a try:
|
1 2 3 4 5 6 |
$wc = New-Object System.Net.WebClient $wc.Headers.Add("User-Agent","Mozilla/4.0+") $wc.Proxy = [System.Net.WebRequest]::DefaultWebProxy $wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials $wc.UploadFile($uri, "C:\Test\1234567.txt") |
Note that – “The UploadFile method sends a local file to a resource. This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used.”