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How to stop leaking your server/framework version
Remove version banners so attackers can't shortlist exploits for your exact stack.
What it is
Headers like `Server` and `X-Powered-By` can advertise the exact software and version you run.
Why it matters
Exact versions hand attackers a ready-made list of known vulnerabilities to try first.
How to fix it
- 1Remove or generalize the `Server` header (e.g. Nginx `server_tokens off;`).
- 2Remove `X-Powered-By` (e.g. disable it in Express/PHP, or strip it at the proxy/CDN).
- 3Strip any framework-specific version headers at your reverse proxy.
- 4Re-scan to confirm no version leakage.
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