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Title:

Good Afternoon

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Web crawler = Spider = Ant = Robot = Bot = Software agent ... Spambot. Shopbot, Pricebot. Web Crawler Impact. Performance. Server workload. Network bandwidth ... – PowerPoint PPT presentation

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Title: Good Afternoon


1
Good Afternoon!
2
Guess Who Is (Under)Mining your System?
  • Win Shih
  • Head, Systems Databases
  • Univ. of Colorado Health Sciences Center Library
  • Keven Riggle
  • Systems Librarian
  • Marquette University Libraries
  • Doug Randall
  • Technology Product Manager
  • Innovative Interfaces, Inc.

3
Marquette University-- Jesuit Catholic
University --
  • 11,500 students
  • 63 undergraduate majors
  • 38 masters programs
  • 16 doctoral programs
  • Professional schools Dentistry, Law

4
Campus Libraries
  • Law Library
  • Raynor Memorial Libraries
  • Over 1.3 million volumes (combined)
  • 200 e-databases and CD-ROM products
  • Shared catalog (MARQCAT)
  • 100 licenses for staff and public

5
Catalog requirements
  • Immediate access
  • Quick response time
  • Useable results

6
Catalog requirements
  • Immediate access
  • Terminal/PC availability
  • Network traffic
  • Server capacity
  • License availability
  • Quick response time
  • Useable results

7
Catalog requirements
  • Immediate access
  • Quick response time
  • Network traffic
  • Server capacity
  • Useable results

8
Scenarios
  • Access denied
  • Maximum user licenses reached

9
Scenarios
  • Access denied
  • Maximum user licenses reached
  • Web crawler

10
Web Crawler
  • Web crawler Spider Ant Robot Bot
    Software agent
  • Computer programs that roam the Web with the goal
    of automating specific tasks
  • Googlebot, Yahoo Slurp, MSNBot
  • Spambot
  • Shopbot, Pricebot

11
Web Crawler Impact
  • Performance
  • Server workload
  • Network bandwidth
  • User licenses
  • Information leakage
  • Privacy
  • Incorrect usage reports
  • Unsatisfied users

12
Spider Spotting
13
Web Access Log Analysis
  • Unobtrusive
  • Automatic logging

14
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15
Restricting Access
  • Employing robots.txt
  • Defining login groups
  • Limit network access tables
  • Monitoring login statistics regularly

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18

Network Access Administration
19
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22
License Assignments
  • License Assigned
  • MilAcq, MilCirc logins
  • Telnet / SSH logins
  • WebPac searching
  • Create Lists
  • Millennium
  • WAM sessions
  • Other modules
  • Z39.50
  • No License Assigned
  • Mill. Control Bar
  • Create Lists
  • Telnet / SSH

23

Network Access Administration
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26
Limit Network Access Z39
27
Restart a Terminal
28
Restart Show All
29
Restart Show All
30
Limit Network Access Z39
31

Network Access Administration
32
Non Local AccessAttempted Allowed
33
Sorted by Service
34
Display Host by Name
35
Display Host by Name
36
IP/DNS Resources
  • DNS Stuff www.dnsstuff.com
  • Advanced DNS Stuff www.dnsstuff.com/pages/exper
    t.htm
  • Reverse DNS Lookup remote.12dt.com/ms/
  • IP Lookup www.ibeast.com/content/tools/ipLoo
    kup/ipLookup.asp

37
Display Host by Name
38
DNSStuff
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Limit Network Access Z39
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Limit Network Access Z39
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Lets ? it out

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  • ????

58
Thank you!
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