When proxying requests, it’s crucial to understand the role of the Host header. This header specifies the target server for a request and can be altered by users to access different resources.
The Host Header
The Host header in a request indicates the intended server. For example:
Host: example.com
GET /v1/users
The Host Header in Reverse Proxies
In reverse proxies, the Host header determines the target server. If absent, the proxy uses the original Host header. When redirecting to a different host, ensure the Host header is updated accordingly.
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