O que é um Client IP?
A Client IP is the unique address assigned to the device or application making a request to a server. It identifies the source of the request and plays a central role in communication across the internet.
O que é IP do cliente? (Proxies explicados)
O IP do cliente é o endereço exclusivo atribuído a um dispositivo que acessa a Internet ou uma rede. Esse IP identifica a localização e a conexão do cliente. No uso de proxy, o IP do cliente geralmente é mascarado para manter a privacidade e o anonimato.
Casos de uso
Fraud Detection
Websites often track Client IPs to spot suspicious activity, such as multiple login attempts from different locations in a short period.
Rate Limiting
Servers may use the Client IP to limit the number of requests a single user can make, protecting resources from overload.
Geolocation Services
A Client IP can be mapped to a geographic region, helping businesses deliver localized content or comply with regional rules.
Melhores práticas
Respect Privacy
Mask or anonymize Client IPs when logging them to avoid exposing sensitive user details unnecessarily.
Handle Proxies Correctly
When dealing with proxies, check headers like X-Forwarded-For to correctly identify the original Client IP, if available.
Secure Your Logs
Always protect stored Client IP data with encryption and access controls, as it can be considered personal data under certain privacy laws.
Conclusão
A Client IP is the address that identifies the origin of a request on the Internet. It is vital for communication, security, and traffic management, and proxies play a major role in shaping how Client IPs are seen by servers.
Perguntas frequentes
The Client IP belongs to the requester (your device or proxy), while the Server IP belongs to the machine that provides the content or service.
No, if configured correctly. The proxy replaces your Client IP with one of its own, masking your identity.
It defines the relationship between user and proxy—every request must present a Client IP, making it the foundation for masking, rotation, and anonymity.
In many jurisdictions, yes. Laws like GDPR treat Client IP addresses as personal data because they can be used to identify a user.