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Update ip-address.md #357

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6 changes: 3 additions & 3 deletions website/docs/guide/ip-address.md
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Expand Up @@ -6,11 +6,11 @@ sidebar_position: 8

# IP Address

IP address plays fundamental role in HTTP; it's used for access control, auditing, geo-based access analysis and more.
Echo provides handy method [`Context#RealIP()`](https://godoc.org/github.com/labstack/echo#Context) for that.
IP address plays a fundamental role in HTTP; it's used for access control, auditing, geo-based access analysis, and more.
Echo provides a handy method [`Context#RealIP()`](https://godoc.org/github.com/labstack/echo#Context) for that.

However, it is not trivial to retrieve the _real_ IP address from requests especially when you put L7 proxies before the application.
In such situation, _real_ IP needs to be relayed on HTTP layer from proxies to your app, but you must not trust HTTP headers unconditionally.
In such situations, _real_ IP needs to be relayed on the HTTP layer from proxies to your app, however, you must not trust HTTP headers unconditionally.
Otherwise you might give someone a chance of deceiving you. **A security risk!**

To retrieve IP address reliably/securely, you must let your application be aware of the entire architecture of your infrastructrure.
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