NTLM authentication support

[sjwang90]

Feature Request

Opening a feature request kicks off a discussion.

Proposal:

NTLM authentication support. Request for support on the following plugins:

• [ ] InfluxDB v1 & v2 Output
• [ ] Stackdriver Input #9175
• [ ] HTTP Input #9192
  • NTLM authentication is not supported by the default HTTP client in Go as it requires multiple rounds (https://github.com/golang/go/issues/20053).

Current behavior:

No NTLM proxy support on some plugins

Desired behavior:

Implement NTLM proxy support on requested plugins

Use case:

For InfluxDB Output: Local Telegraf instance is sending to a corporate proxy that requires NTLM authentication.

[reimda]

There is a go module that does NTLM proxy auth and might be useful to implement this feature request.

https://github.com/aus/proxyplease

https://github.com/aus/proxyplease/blob/master/ntlm_windows.go

It's MIT licensed so it should be appropriate for including in telegraf.

[reimda]

https://github.com/Azure/go-ntlmssp may also be useful. Thanks @srebhan

[srebhan]

Closing as there seems to be no interest in this feature. If you need NTLM please reopen the issue of open a new one!