---
description: Example origin rules for routing and header modifications.
title: Origin Rules examples
image: https://developers.cloudflare.com/og-docs.png
---

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# Origin Rules examples

Last updated Aug 25, 2026|Copy as Markdown|[View as Markdown](https://66f4ea29.previews.developers.cloudflare.com/rules/origin-rules/examples/index.md)|[Agent setup](https://66f4ea29.previews.developers.cloudflare.com/agent-setup/)

[**Change the HTTP Host header and DNS record**Create an origin rule to change the HTTP Host header and the resolved DNS record.](https://66f4ea29.previews.developers.cloudflare.com/rules/origin-rules/examples/change-http-host-header/)

[**Change the destination port**Create an origin rule to change the destination port.](https://66f4ea29.previews.developers.cloudflare.com/rules/origin-rules/examples/change-port/)

[**Define a single origin rule using Terraform**Create an origin rule using Terraform to override the Host header, the resolved hostname, and the destination port of API requests.](https://66f4ea29.previews.developers.cloudflare.com/rules/origin-rules/examples/define-single-origin-terraform/)

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