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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

A Network Case Study

John Kristoff <[email protected]>

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

John Kristoff


Organizational Structure

John Kristoff


Another View

John Kristoff


Network OverviewSpring 1999

John Kristoff


Network OverviewSpring 2000

John Kristoff


Gigabit WAN

John Kristoff


Lincoln Park Infrastructure

  • Expansion and Renovation

  • Network Connectivity Costs

  • Network Connectivity Options

  • Approximately 30 buildings to connect!

John Kristoff


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 SecurityFirst Steps

  • Compromised systems rebuilt

  • Routers/Switches secured

  • Router filters applied

  • Network equipment logging enabled

  • Scare tactics used

John Kristoff


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 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

  • 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

  • MRTG

  • Netflow data

  • syslog

  • NTP

  • nmap

  • packet capture (Sniffer, tcpdump, etc.)

  • documentation!

John Kristoff


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