|
Proxy Server as Firewall Server
|
| bet | 2/10 | | Sana | 15.02.2024 | | Hajmi | 259 Kb. | | #156844 |
- Packet Filtering – examines all TCP/IP based attempts in & out of the network.
- Logs all connection attempts & alerts in real-time of the suspicious activities.
- Reverse Proxy - Places the web server behind Proxy Server to publish to the Web.
- “Impersonates" a Web server to the outside.
- Reverse Hosting & Server Proxying.
MS Proxy Server as Web Cache Server - Web Caching – process of storing Web content locally to reduce network traffic.
- Allow internal clients to have full Web access behind the firewall without compromising security.
- Hierarchical Caching.
- Distributed Caching.
Cache Example Hierarchical Caching Example Distributed Caching Example - Protocols allow the application clients to communicate to application servers.
- Performs three functions:
- Intercepts connection requests.
- Sets up proxy circuit.
- Relays application data.
WinSock & SOCKS Proxy - WinSock Proxy.
- For Window application.
- Creating virtual connection between Internal and Internet application.
- Acts as gateway protocol for IPX/SPX.
- SOCKS Proxy.
- Allows Unix, Mac and Window client application that support SOCKS protocol specification.
- Handles all TCP/IP traffic through the proxy server.
- Cannot Handle UDP based protocols.
Web Proxy - Web Proxy
- Supports any CERN web browser.
- Supports HTTP, FTP, SSL and Gopher protocol.
- Enables its caching capabilities.
- WinNT Server 4.0 with service pack 3 or later.
- IIS – Internet Information Server.
- Network interface card.
- CPU and disk space:
- Intel based: 486/33MHz or higher & 125MB.
- RISC based: RISC processor compatible with WinNT 4.0 & 160MB.
- 16MB of RAM.
Examples of Capacity Planning - Small Office Network.
- Medium-Size Office Network with a Branch Office.
- Large Enterprise Network.
Example of Small Office Network - Proxy Server
- (Win NT RAS client)
|
| |
