Comptia Network+: Proxy Servers
What is a Proxy Server?
A proxy server is a computer system that acts as an intermediary for requests from clients seeking resources from other servers. The client connects to the proxy server and requests information like files, connections, or any resource available from other servers.
Importance of Proxy Servers:
Proxy servers are crucial for a variety of reasons: They can enhance network performance by caching; they maintain security by keeping machines behind it anonymous and can also filter the network traffic.
How Proxy Servers work:
A proxy server functions by accepting a connection from a client, making a request on behalf of the client, and returning the data to the client. They work as the middle ground between clients and servers, effectively hiding the true network addresses.
Exam Tips: Answering Questions on Proxy Servers:
When answering exam questions about Proxy Servers, it is important to:
1. Understand the basic functions of the proxy server.
2. Be aware of the security benefits of using a proxy server.
3. Understand how proxy servers can improve network performance.
4. Be able to discuss how a proxy server processes requests from a client to a server.
5. Highlight the role of a proxy server in controlling and filtering internet usage.