> For the complete documentation index, see [llms.txt](https://docs.keyfax.biz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keyfax.biz/technical/cloud-operation/amazon-web-services.md).

# Amazon Web Services

Keyfax can operate on premise or in the cloud within Amazon Web Services. Whilst we don't have any specific information at this time we do have customers running Keyfax within AWS and can assist further with any questions upon request.&#x20;

### AWS Elastic Load Balancer

We have found other AWS users running into issues with AWS load balancers forwarding requests. To resolve these issues please ensure...&#x20;

1. If possible temporarily try disabling ALB attribute “Drop invalid headers”. I would not suggest permanently disabling this as it is generally good practice to strip unknown headers. Keyfax does not require any unknown headers.
2. Ensure there are no redirect rules set-up on the ALB – these may strip HTTP headers. For example ensure no "Redirect to HTTPS" rules are enabled.&#x20;