glexec is a system for authorising and controlling the payload executed by pilot jobs: http://www.sysadmin.hep.ac.uk/wiki/Glexec. Discussion in the ScotGrid TB has concluded that glexec in suid form is unacceptable. There is a request for the MB to ratify this as policy. (N.B. This is in line with the GridPP Deployment Board.)
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SL4 Status and Plans10m
SL4 for WN and UIs is now available. All sites are encouraged to upgrade before September. However, it would clearly be foolish to all upgrade at once, so we should plan how to do this across the 3 sites.