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DePaul University. A Network Case Study John Kristoff <[email protected]> http://condor.depaul.edu/~jkristof/. Organizational Structure. Another View. Network Overview Spring 1999. Network Overview Spring 2000. Gigabit WAN. Lincoln Park Infrastructure. Expansion and Renovation

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Depaul university

DePaul University

A Network Case Study

John Kristoff <[email protected]>

http://condor.depaul.edu/~jkristof/

John Kristoff



Another view
Another View

John Kristoff


Network overview spring 1999
Network OverviewSpring 1999

John Kristoff


Network overview spring 2000
Network OverviewSpring 2000

John Kristoff


Gigabit wan
Gigabit WAN

John Kristoff


Lincoln park infrastructure
Lincoln Park Infrastructure

  • Expansion and Renovation

  • Network Connectivity Costs

  • Network Connectivity Options

  • Approximately 30 buildings to connect!

John Kristoff


Network security spring 1999
Network SecuritySpring 1999

  • DNS server compromised - GAME OVER!

  • Lack of awareness/expertise

  • No computer security person/team

  • Security incidents were never reported by an I.S. staff member

John Kristoff


Network security first steps
Network SecurityFirst Steps

  • Compromised systems rebuilt

  • Routers/Switches secured

  • Router filters applied

  • Network equipment logging enabled

  • Scare tactics used

John Kristoff


Computer security today
Computer SecurityToday

  • Incident response team formed

  • Directive from VP

  • Use of encryption increasing

  • Staff participating in training and industry events

  • Regular network security audits

  • Awareness is built!

John Kristoff


Computer security tomorrow
Computer SecurityTomorrow

  • Sophisticated intrusion detection system

  • Firewalls in front of key resources

  • Membership into FIRST.org

  • More encryption

  • Revised and updated policies

  • More secure systems and network!

John Kristoff


Bandwidth management
Bandwidth Management

  • Internet bandwidth is our last mile

  • Difficult to provide fairness

  • ResNet

    • many shared LANs

    • many users suffer!

  • Throw bandwidth at the problem?

  • No silver bullet today

John Kristoff


Some of my favorite network tools
Some of My Favorite Network Tools

  • MRTG

  • Netflow data

  • syslog

  • NTP

  • nmap

  • packet capture (Sniffer, tcpdump, etc.)

  • documentation!

John Kristoff


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