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HTASC - Report to HEP-CCC

HTASC - Report to HEP-CCC. David Kelsey, RAL d.p.kelsey@ rl.ac.uk 10 November 2000, CERN ( http://home.cern.ch/~eauge/htasc/public/). HTASC #16 19th/20th October 2000, Bologna. Agenda included: Ongoing topics: LDAP, Security, Certificates DataGrid Networking/QoS/Diffserv

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HTASC - Report to HEP-CCC

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  1. HTASC - Report to HEP-CCC David Kelsey, RALd.p.kelsey@ rl.ac.uk10 November 2000, CERN (http://home.cern.ch/~eauge/htasc/public/) D.P.Kelsey, HTASC report

  2. HTASC #16 19th/20th October 2000, Bologna Agenda included: • Ongoing topics: LDAP, Security, Certificates • DataGrid • Networking/QoS/Diffserv • Markup Languages – XML in particular • Future meetings/topics D.P.Kelsey, HTASC report

  3. Membership of HTASC • New members • F. Forti (INFN/Italy) replaces P.Capiluppi • R. Mankel (DESY/Germany) replaces T. Haas • But T.Haas will continue as chair of HTASC Security group • Good attendance this time • new Secretary – split post • Minute taker: A. Flavell (UK) • Web manager: N. Colino (Spain) D.P.Kelsey, HTASC report

  4. Directories/LDAP • At March 2000 HTASC/HEP-CCC • Growing importance - Windows 2000, GRID, etc. • Strong support from HEP-CCC - CERN/IN2P3 group should organise an LDAP workshop for White Pages service • At July 2000 HEP-CCC • Workshop not taken place • But various discussions about GRID Info Services • Try to organise a workshop at HEPiX (October 2000) • Situation now • Michel Jouvin reviewed LDAP at HEPiX • HTASC and HEPiX view – workshop still necessary • F.Etienne/M.Jouvin – propose to organise a workshop on LDAP (White Pages and GRID) in Europe – March? D.P.Kelsey, HTASC report

  5. X.509 Certificates At July 2000 HEP-CCC • Driving reason for X.509 Certificate Authorities in HEP is GRID/Globus software. • DataGrid – special task force (proposed in Lyon mtg) • Need was confirmed in Marseille meeting Discussed at HTASC (Oct) • DPK asked to coordinate DataGrid WP6 task force • Meeting of Testbed Security contacts at CERN – 4/5 Dec • Many issues, including • Authentication vs Authorisation (Architecture) • Will we trust each others certificates? • Liaison with US labs required (started at HEPiX) D.P.Kelsey, HTASC report

  6. Network Security • Suggested during July 2000 HEP-CCC • Action on me to write a draft mandate • HTASC discussed this (Oct 2000) • Also request for co-ordination from FOCUS (Oct) • Reminder of issues • Many labs tightening security • Port filtering, turn-off clear-text passwords • FNAL strong authentication • CERN’s CLASP project • Growing use of one-time passwords • Growing use of certificates • Potential to affect off-site users in small institutes D.P.Kelsey, HTASC report

  7. Security (2) • HTASC proposes that the existing HTASC Security group looks at this – to report in March 2001 • (zero’th) draft mandate… (still to be discussed with T.Haas and HTASC) • Survey the methods used by HEP labs (today and planned) for the authentication of users, both on and off-site • Report on any problems that these methods cause for off-site access, particularly where off-site users/groups need to access resources at more than one site • Make recommendations as to how the situation could be improved • n.b. this should include the general use of certificates D.P.Kelsey, HTASC report

  8. Networking/QoS/Diffserv Two presentations • Tiziana Ferrari (INFN/Bologna) • Quantum Test Programme – joint TERENA/DANTE task force on Testing of Advanced Networking (TF-TANT) • Diffserv testing - see URL and pointers contained therein • http://www.cnaf.infn.it/~ferrari/tfng/ds/ • Detailedcomparison of WFQ and PQ for support of Expedited Forwarding (EF) (Test network INFN/CERN) • MANY interesting results –> PQ better than WFQ • Also tested a real app INFN-FNAL (Robin – CDF VME crate remote control) – same conclusion • Robin Tasker (CLRC/DL) • Tests of congestion avoidance using CAR and WRED D.P.Kelsey, HTASC report

  9. Markup Languages/XML • One presentation • Steve Fisher (CLRC/RAL) • Input from Michel Goosens (CERN) • Working on XML/LaTeX/HTML solutions in collaboration with several experiments • By March 2001, should have advanced in direction of exploiting XML technology at CERN • HEP can benefit from many initiatives (commercial and OpenSource) • Proposal – invite Michel Goosens to the next meeting to complete this topic D.P.Kelsey, HTASC report

  10. Markup Languages (2) HTASC discussion • What is common format for document exchange? • PDF seems best for reading and printing • But need to be able to modify • XML is immature • What about presentations? • PowerPoint is clear market leader • Collaborative documents • BaBar TDR uses LaTeX and CVS • Others use FrameMaker, MS Word, … D.P.Kelsey, HTASC report

  11. Future HTASC meetings/Topics(provisional dates/plans) • 8/9 March 2001 (CERN) • Network security • Revisit/complete XML/Markup languages • 7/8 June 2001 (location to be decided) • Windows 2000 group review • LDAP? • 18/19 October 2001 (DESY) • UNIX/Windows integration? • Other topics: • ideas always welcome! D.P.Kelsey, HTASC report

  12. Summary HTASC invites HEP-CCC to consider/give advice on • LDAP workshop – planned for Mar 2001 • X.509 certificates • Task force for DataGrid Testbed (WP6) (expts via WP8) • General use in HTASC Security group review • Suggestions for the mandate for the Security review • Could hold a security meeting before HTASC if needed? • Any more guidance on Markup langs? • What is the question we should answer? • Other future topics for HTASC consideration? D.P.Kelsey, HTASC report

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