A proxy server acts as an intermediary between a client and a server. It processes requests and responses, allowing for added functionality such as anonymity, caching, or access control.
Key Functions of a Proxy Server:
- Anonymity:
- Hides the client’s IP address from the server.
- Provides an additional layer of privacy for the user.
- Caching:
- Stores frequently accessed resources locally.
- Reduces load times and server bandwidth usage.
- Access Control:
- Filters requests based on IP, domain, or protocol.
- Restricts access to certain websites or services.
- Content Filtering:
- Blocks inappropriate or malicious content.
- Enforces organizational policies on browsing behavior.
- Traffic Monitoring:
- Tracks and logs usage for auditing purposes.
- Helps identify unusual or unauthorized activity.
- Bypassing Restrictions:
- Allows access to region-restricted content.
- Circumvents firewalls and network restrictions.
Types of Proxy Servers:
- Forward Proxy:
- Sits in front of clients and forwards requests to servers.
- Commonly used for internet access control or filtering.
- Reverse Proxy:
- Sits in front of servers and handles client requests on their behalf.
- Enhances load balancing, security, and caching.
- Transparent Proxy:
- Doesn’t modify requests or responses; users may not know it’s present.
- Often used for monitoring purposes.
- Anonymous Proxy:
- Hides the client’s IP address but identifies itself as a proxy.
- Offers privacy without complete anonymity.
- High Anonymity Proxy:
- Hides the client’s IP and doesn’t reveal that it is a proxy.
- Provides maximum anonymity.
Hope this will help you.