I recently asked a question on this mailing list:

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We want to disable ticketing on the VNC connections to our VMs. I created a hook script that removes the passwd and passwdValidTo attributes from the XML file and this seems to work OK. The one problem is that I cannot open the console from the web portal. I get a "set ticket" failure. Is there a

work around for this?

I notice there are hooks for before and after setting the ticket (before/after_vm_set_ticket). Can one of these be used to correct the failure setting the ticket from the web portal? Thanks