How to fix az cannot connect to proxy on my Windows PC?

Question

Hi,

I am a new user. After installed Azure CLI and added proxy environment variables, I tried "az login" in my Windows PC and got the following error: "Cannot connect to proxy.', OSError('Tunnel connection failed: 407 Proxy Authentication Required')". I already include username:password in the environment variables. What else should I configure to make it work? Thank you!

Answer 1

@Peizhu S Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

I understand that you are encountering the error Cannot connect to proxy.', OSError('Tunnel connection failed: 407 Proxy Authentication Required') while using the Azure CLI.

To make the Azure CLI work behind a proxy there are a few steps to be considered.

To configure a proxy globally for your script or app, define HTTP_PROXY or HTTPS_PROXY environment variables with the server URL. These variables work with any version of the Azure libraries. Note that HTTPS_PROXY doesn't mean HTTPS proxy, but the proxy for https:// requests.

If the proxies require authentication, The format of the HTTP_PROXY or HTTPS_PROXY environment variables should include the authentication, such as HTTPS_PROXY="https://username:password@proxy-server:port"

# Non-authenticated HTTP proxy for HTTPS requests:

export HTTPS_PROXY=http://10.10.1.10:1180

# Authenticated HTTP proxy for HTTPS requests:

export HTTPS_PROXY=http://username:password@10.10.1.10:1180

# Non-authenticated HTTP proxy for HTTP requests:

export HTTP_PROXY=http://10.10.1.10:1180

# Authenticated HTTP proxy for HTTP requests:

export HTTP_PROXY=http://username:password@10.10.1.10:1180  
  

If the above steps doesn't help you need to raise the issue in the Azure CLI GitHub repo here:
https://github.com/Azure/azure-cli/issues . The AzCLI experts will be able to assist you further.

Hope this helps.

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