CASP+ Definitions: Forward Proxy/Transparent Proxy
A proxy server is a computer or network device that acts as an intermediary between a client device and the internet. There are two main types of proxy servers: forward proxy and transparent proxy.
A forward proxy, also known as a regular proxy, is a proxy server that sits between a client device and the internet. When a client device requests a web page or other internet resource, the request is first sent to the forward proxy server, which then retrieves the resource on behalf of the client device. The resource is then returned to the client device through the proxy server.
Forward proxy servers can be used to improve security by providing an additional layer of anonymity between the client device and the internet. This can help to protect the identity and location of the client device from potentially malicious internet resources.
A transparent proxy, also known as an intercepting proxy, is a proxy server that intercepts client requests without requiring any configuration on the client device. When a client device requests a web page or other internet resource, the request is automatically intercepted by the transparent proxy server, which then retrieves the resource on behalf of the client device. The resource is then returned to the client device through the transparent proxy server.
Transparent proxy servers can be used to improve security by providing additional filtering and monitoring capabilities. They can be used to block access to certain internet resources, monitor and log internet activity, and provide additional security features such as antivirus and malware scanning.
Overall, both forward and transparent proxy servers are important technologies for improving cybersecurity, and are widely used by organizations of all sizes to protect their network infrastructure and data from cyber threats.