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Directory Workshop Parallel Sessions Rob Banz, Univ. of Maryland, Baltimore County Tom Barton, University of Memphis Keith Hazelton, University of Wisconsin,

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Presentation on theme: "Directory Workshop Parallel Sessions Rob Banz, Univ. of Maryland, Baltimore County Tom Barton, University of Memphis Keith Hazelton, University of Wisconsin,"— Presentation transcript:

1 Directory Workshop Parallel Sessions Rob Banz, Univ. of Maryland, Baltimore County Tom Barton, University of Memphis Keith Hazelton, University of Wisconsin, Madison Richard Jones, University of Colorado, Boulder 02 February 2002

2 02 Feb 2002I2 CAMP 2 Overview Interactive tour of directory design & implementation issues: Data flow from source systems through enterprise directory to applications Infrastructure services provided to applications & service platforms Directory enabled applications Groups Metadirectories & affiliated directories

3 02 Feb 2002I2 CAMP 3 Generic Institutional Middleware Architecture Core Business Systems Async sources Object registry Business logic Applications & service platforms authN service attribute & group service Business logic Enterprise directory Metadirectory

4 02 Feb 2002I2 CAMP 4 Source(s) of Identity What is the system of record for identity data? (trick question) (A)Several. Some of HRS, SIS, Academic Personnel, Med School, Law School, Telecommunications Management System, Alumni System, Library, … are sources, and others must be reconciled. (B)All core business systems obtain identity data from the object registry. Answer B may prove to be fundamental to having substantial online services & programs…

5 02 Feb 2002I2 CAMP 5 Managed Objects Objects that describe: People Groups Aliases, Roles, Affiliations Network devices Security policies Network services Org structure Application specific objects The object classes and source data to populate them are determined by the applications to be directory enabled, with institutional policy folded in.

6 02 Feb 2002I2 CAMP 6 Continuous deployment cycle Application requirements Data sources Object definitions Business logic Metadirectory processes Staging of new objects in directory

7 02 Feb 2002I2 CAMP 7 Authentication Service Models Several authentication services may need to be provided “on the front end”: RADIUS, LDAP, Kerberos, WebISO, basic auth,…. Best practice to work towards is to base them all on a strong system such as Kerberos or PKI, implementing backend callouts from other authN services where possible. (and of course ensure basic auth is only done over encrypted channels in the meanwhile!)

8 02 Feb 2002I2 CAMP 8 Attribute & group services facilitate… Customization – application UI tailored to user’s affiliation with the organization. Personalization – application UI tailored to user’s preferences. General authorization (but especially affiliation based authZ). Group messaging. Naming services (for unix at least).

9 02 Feb 2002I2 CAMP 9 Application Examples 1 White & blue pages: find contact info for persons and departments SMTP routing Mailbox access & personalization Group messaging Calendar authN, customization (calendar roles), personalization.

10 02 Feb 2002I2 CAMP 10 Application Examples 2 Web basic authN, authZ: “require user”, “require group”, and “require filter”. Course management system: authN, customization, personalization. Portal: ditto Generic application server (egs, EJB, J2EE): ditto + authZ. Specialized application server (egs, Brio, Cognos, RightNow, ARS, …): authN, authZ.

11 02 Feb 2002I2 CAMP 11 Application Examples 3 Account self-maintenance (password, PIN, email, personal URL, pager, …) E-provisioning – automated account management. Basic life cycle for accounts and access privileges. Unix naming services

12 02 Feb 2002I2 CAMP 12 Application examples 4 NAS authN, authZ, customization. Proxy access Network auto-registration Computer lab (& desktop) authN, authZ, customization, personalization. Integration of LAN specific directory…

13 02 Feb 2002I2 CAMP 13 Active Directory As application specific directory (for LAN management), needs accounts to be synchronized from institutional directory service. A metadirectory problem? Want groups too (for LAN management)?? AD as enterprise directory?

14 02 Feb 2002I2 CAMP 14 Types of groups: how sourced Institutional Automated Manual Delegated Personal Joinable

15 02 Feb 2002I2 CAMP 15 Types of groups: content Enterprise (e.g. all faculty, staff & students; all non- exempt employees) Departmental (e.g. History Dept staff; all dept heads and above in College of Education) Academic (e.g. students in PHYS101 section 001 Spring 2002; all seniors in MIS) Application specific (e.g. persons permitted to run special Brio queries; answerers for questions about the Law program) Activity specific (e.g. Chess Club; Helpdesk Team)

16 02 Feb 2002I2 CAMP 16 Types of groups: representations Static: uniqueMember= Dynamic (&(acadcourse=PHYS101001)(|(state=active)(sta te=grace))) Forward reference isMemberOf: Spatial: children of ou=EE,ou=CollegeOfEngineering,ou=Org,…

17 02 Feb 2002I2 CAMP 17 Groups: techniques & issues Naming & location Group math Referential integrity Privacy Aging Delegated management Forward referencing

18 02 Feb 2002I2 CAMP 18 Groups: choosing a representation how the group information is to be maintained how it is to be most commonly accessed (e.g., is X a member of, list all members,…) interactions between the type of representation, the nature of the group (such as size and privacy requirements), and capabilities of the particular directory service agent (DSA) being used.

19 02 Feb 2002I2 CAMP 19 Metadirectories: why? Replication solves some problems but not all You will need directories with special ACLs special objects or attributes handling multicampus issues etc You WILL end up running multiple (different) directories. How?...

20 02 Feb 2002I2 CAMP 20 Metadirectory: what it is & isn’t An overworked term Not just a meta-database (not necessarily a directory!) Data transformation among data sources and directories including identity management, organizational policy, and e- provisioning.

21 02 Feb 2002I2 CAMP 21 Metadirectory tools MetaMerge--a metatool (use free to higher ed) to solve metadirectory problems. Examples: Move data from a person registry to the enterprise directory Transform data from enterprise directory to special application directory DoDHE

22 02 Feb 2002I2 CAMP 22 Affiliated directories Trying to characterize the problem is itself a problem! E.g.s: currency of information in a personal address book Maintaining integrity of PI contact information at granting agencies Verification/currency of data outside of the bounds of a unified enterprise directory. The things that flow out to target repositories are data + metadata bundles


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