A brief Description of the University Network By John G. mwangi Senior Network Administrator Jomo Kenyatta University of Agriculture and Technology.

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Presentation transcript:

A brief Description of the University Network By John G. mwangi Senior Network Administrator Jomo Kenyatta University of Agriculture and Technology

Proxy Public Switch MDU Firewall Route r Databas e q.M ail SERVERS Internet

Firewall I can check the top users from the firewall in terms of: The IP address The website Protocol

Firewall continued Helps in content filtering. Acts as my default gateway Blocking websites that are consuming bandwidth,p2p traffic video and audio streaming Security-sends regular updates on who is messing the network 07/24/ :55: SYN flood attack dropped - Source: , Destination: , /24/ :55: ICMP packet dropped - Source: , 3, WAN - Destination: , 3, WAN - Dest Unreachable, Code: /24/ :55: IP spoof dropped - Source: , 137, LAN - Destination: , 137, DMZ - MAC address: EC.02.EC.1A - 07/24/ :55: ARP timeout - Source: Destination: /24/ :55: TCP FIN packet dropped - Source: , 39813, WAN - Destination: , 1335, WAN /24/ :56: ICMP packet dropped - Source: , 3, WAN - Destination: , 3, WAN - Dest Unreachable, Code: 3 type=3 code=3 - 07/24/ :56: Out-of-order command packet dropped - Source: , 21, WAN - Destination: , 1620, LAN - -

Public switch This contains equipment with public IP addresses, mail, proxy server I have done NAT with my private IP Addresses. The wireless network is also connected in this switch. Outside my LAN, ubiquiti equipment nanstation2

Proxy server Runs fedora 8.0 squid Caching keep local copies of frequently requested resources Content filtering Ntop installed To keep machines behind it anonymous

MDF/MDU Where all the university fibre network is terminated Has got our core switch 25 fibre terminations(with media converters) from different buildings, engineering, computer science,adminstration,library. Mixture of both single mode and multimode fibre cables

MDF Fibre Departmental switch Staff Members Child proxy server CAT5 or 6 UTP Students Lab switch

Thank you