Function localhostHostValidation

localhostHostValidation(): (
request: FastifyRequest,
reply: FastifyReply,
) => Promise<void>
Convenience hook for localhost DNS rebinding protection. Allows only localhost, 127.0.0.1, and [::1] (IPv6 localhost) hostnames.

Returns (request: FastifyRequest, reply: FastifyReply) => Promise<void>
Example
```
app.addHook('onRequest', localhostHostValidation());
```
- Defined in middleware/hostHeaderValidation.ts:47