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University of Michigan Directory Services

University of Michigan Directory Services. Ellen Vaughan evaughan@umich.edu Mike La Haye mjl@umich.edu. Directory Experiences @ umich. Where we are today Where we’ve been Where we’re headed…. Directory Experiences @ umich. Scope of service… Online Directory (X.500) White pages

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University of Michigan Directory Services

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  1. University of MichiganDirectory Services Ellen Vaughan evaughan@umich.edu Mike La Haye mjl@umich.edu

  2. Directory Experiences @ umich • Where we are today • Where we’ve been • Where we’re headed…. csg workshop

  3. Directory Experiences @ umich • Scope of service… • Online Directory (X.500) • White pages • Mail delivery • Vendor Directories • Novell NDS • Notes • ADS csg workshop

  4. Online Directory @ umich • Statistics (as of April 26,1999) • Entries 224,498 • People 166,921 • Groups 56,254 • Other 1,324 csg workshop

  5. Online Directory @ umich • Sample service statistics (Monday April 26,1999) • Search requests 957,000 • Modify requests 2,483 • Adds 188 csg workshop

  6. Online Directory @ umich • Choices made… • Schema • Source data • User@umich.edu mail routing • killer application • Facilitated user migration from mainframe csg workshop

  7. Source Data Issues • Data Ownership • Feeds from administrative sources • HR/payroll/SCDB • Paper directory issues • Common vocabulary csg workshop

  8. Data Maintenance • Expiration • Termination • Affiliation duration • Purging csg workshop

  9. Data Management • User modification of individual entries • User creation of groups • Unidirectional / Bidirectional updates csg workshop

  10. Data Privacy • Information about individuals • Information about groups • Group Spamming • Personal harassment • Exposure of sensitive information • Organizational Privacy csg workshop

  11. More Data Issues • Naming conventions • Standards • Unambiguous data requests • Understanding what you’re getting • Upstream changes to source data csg workshop

  12. Unique Entity Identifier • Short comings of hierarchical org model • Implicit organizational membership • Managing users with multiple roles • Managing users with changing roles csg workshop

  13. LDIF: the sneaker net for meta directories? csg workshop

  14. Vendor Specific Directories • Novell NDS • Lotus Notes • Microsoft Windows NT • Banyan StreetTalk csg workshop

  15. NDS • 25,000 active users • Primarily staff and faculty • Single campus directory • Highly partitioned • delegated administration • Vendor provided base schema • Vendor provided schema extensions csg workshop

  16. NDS Futures • Being adopted by the Medical Center • 50% campus installed base of Novell products • 15,000 GroupWise users • Need better institutional data • Looking at NDS v8 • more scalable • better performance csg workshop

  17. Windows NT • Exchange address book • Tools developed to import LDIF • Looking toward Active Directory • Active Directory • Populating with LDIF extract today • Modified LDIF as opposed to schema • reasonable performance for searching csg workshop

  18. Lotus Notes • 3000 Active users today • Looking to better integrate R5 with campus security and directory infrastructure csg workshop

  19. Building Bridges • Stock deployments of vendor products • Central vs. delegated administration • Central management of accounts • Synchronization of user attributes • Synchronization of groups • Can meta directories help? csg workshop

  20. Directory Experiences @ umich Lessons learned: how to know what you’re getting….. Avoid Miscommunication Wrong assumptions Ambiguous requests csg workshop

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