curl.exe -v https://codedeploy.us-east-1.amazonaws.com/ 2>&1 | Select-String -Pattern "SSL|TLS|HTTP|Connected|Failed|certificate"


powershell
# 1) What system proxy does .NET / PowerShell think applies for this URL?
[System.Net.WebRequest]::DefaultWebProxy.GetProxy('https://codedeploy.us-east-1.amazonaws.com')
# If output != the original URL -> system has a proxy configured.

# 2) WinHTTP proxy (used by many CLI tools)
netsh winhttp show proxy

# 3) IE / per-user proxy settings (this is what the browser typically uses)
Get-ItemProperty 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings' | Select-Object ProxyEnable, ProxyServer, AutoConfigURL

# 4) Env vars in the CURRENT PowerShell session
$env:HTTPS_PROXY; $env:HTTP_PROXY; $env:NO_PROXY

$env:HTTPS_PROXY = '<proxy URL from (1)>'

aws deploy list-on-premises-instances

:proxy_uri: http://<the-proxy-host>:<port>