1. Sokoine University of Agriculture (SUA), Tanzania Magesa, M and Luhusa, L Computer Centre-SUA

2. Introduction Sokoine University of Agriculture (SUA) Two campuses  Main campus (SUA-Main)  Solomoni Mahlangu Campus (SMC) Four faculties Agriculture Veterinary Medicine Forest and Nature Conservation Science

3. Introduction: Cont >500 employees >3000 students 1800 at SMC Campus 1200 at Main Campus Computer Centre Coordinate the computerization of the University Plan, establish and maintain the ICT infrastructure

4. Introduction: Cont Develop manpower responsible for ICT at SUA

5. ICT Infrastructure at SUA 3 computer labs (one at each campus for underdrad. stds, one for post grad. stds) >500 computers for staff and students Most running MS Wins (2K, XP) A few in students lab run fedora core 3 >200 computers connected to the Internet Internet Connection : Leased copper wire 256kbps downlink 128kbps uplink

6. ICT Infrastructure at SUA Link to SMC campus From SUA-main via Radio Link Bandwidth 128kbps Network Topology Extended Star Combination of Fibre optic backbone, coaxial cables, and UTP Cat 5 cables

7. Existing Internet Setup Servers NAT Servers Redhat enterprise DNS Server Red Hat enterprise E-mail and Web Servers Fedora Core 3 Firewall Red Hat enterprise Gateway Red Hat enterprise

8. Existing Internet Setup DHCP Server Red Hat enterprise Proxy Server Red Hat enterprise Communication Equipments RAD Modem Connected to the ISP, 256kbps/128kbps

9. Technical setup diagram

10. Internet Router(196.43.83.0/27) NAT+Firewall(Iptables-dell server) eth0(196.43.83.2) eth1(192.168.1.0/24) DMZ(Web+Mail) eth2(172.16.0.0/12) eth3(192.168.2.0/24) LAN(Main Campus) SMC Squid+Dhcp(172.16.0.3)

11. Existing Internet Setup Networking Equipments Accton 16 ports Hub/Switch Fibre termination port BNC port Cisco Route 2900 Series Connect to the ISP

12. Bandwidth Management and Optimization at SUA Configured MRTG Monitor the Network and Link utilization Configured firewall and Gateway Prevent access to/from remote sites based on IP address ranges, Port numbers, and Individual sites

13. Bandwidth Management and Optimization at SUA Forward HTTP traffics to a transparent proxy server Configured Transparent Squid Proxy Server Client education/good etiquette

14. The way forward Replace core switch (Distributors) Manageable layer three switches Replace Uplink switches Manageable layer two switches Create virtual LAN infrastructure Commercial firewall with network antivirus Internet connection Downlink 1M, Uplink 512K

15. The End