: Organizations like Microsoft Azure or Huawei Cloud provide white papers on Bastion Host Architectures , which detail how backends securely transfer client IP addresses and manage private-only deployments. Academic "Proper" Papers

If you meant a research paper on the theory of secure gateways or distributed backends, you might be looking for:

: In CI/CD pipelines (like GitLab or Ansible), .tar files with this naming convention are used to package backend distribution code to be extracted onto a bastion host (a secure server used as a gateway to private networks).

If you are looking for formal documentation or research regarding the architecture behind such a file, it likely relates to one of the following concepts: Technical Contexts