1. Dial-On-Demand Server Steve Castellotti Manuel Perez

2. Reasoning Increased of Speed and Performances of Computers Most of this Power not needed to accomplish basic tasks

3. Purpose To show that an end of life-cycle computer can still be used in today’s Internet application by using the bare minimum requirement Set Up a Dial-On-Demand Server with Firewall Capabilty

4. The System Computer: 386/sx - 16mhz 4mb Ram 40 mb Hard Drive Software: Debian 2.1 using Kernel 2.0.38

5. Installation Process Install Operating System Swap File Issues Delete Unnecessary Material Setup Software and recompile Kernel Initialize configuration

6. Key Terms Dial-On-Demand Firewall IP Masquerading DHCP PPP

7. Dial-On-Demand If connection to internet does not exist, set up connection If connection exist, reset timer Only use Internet when needed Set up specific connection times

8. Firewall Protect Private LAN from Outside World Trust user to know what he is doing when he access outside information.

9. IP Masquerading Make all request for the outside information appear as if it is coming from one IP Protects internal LAN Removes limitations of one IP address for the network

10. DHCP Dynamic Host Configuration Protocol Simplifies configuration of network clients Get IP address from Table or pool of available of IP address.

11. PPP Peer to Peer Protocol Allows creation of IP protocols and other network protocols over a serial link Standard internet connection protocol (used by Windows, MacOS, etc.)

12. Network Layout

13. Network Layout ( Cont. ) 3 Clients Faustulus Remus Sabine 2 Servers Romulus ( Inside Server ) Closet ( Outside Server )

14. Benefits of this System 1 IP address Needed Money saved by not needing more IP’s Service Provider has no problem Internal Machines protected by Firewall Idle time cut short by DialD

15. Benefits of this System ( Cont. ) Internal Machines believe they have direct connection Internal Machines don’t have to be special configured Cheap and abundant hardware ( 10 years ) Free Software and Documentation

16. Disadvantages Internal servers have to have special settings Some protocols don’t perform under IP Masquerading correctly Limitation of Multi-Player games Requires knowledge and time to setup and test.

17. Future Consideration Can be used as a firewall for DSL, ISDN, and Cable Modem Can be used as a backup connection to the internet Replace need for proprietary software and hardware so it saves cost

18. Future Consideration You can set up an S/WAN VPN between two sites You should be able to call the modem and log on to the system. Instruct System to log on after hang up.