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[Stéphane Graber <stgraber@xxxxxxxxxxxx>]

Public bug reported:

Natty's ssh uses ecdsa keys when available.
Current LTSP only support copying rsa and dsa keys to the chroot, so when a user tries to login it'll fail as ssh in the background is prompting the user to accept the ecdsa key.

A fix has been pushed to upstream ltsp to add support in ltsp-update-
sshkeys for ecdsa keys and the corresponding change will also be applied
to Edubuntu's postinst LTSP script (copying the ecdsa key from the
server when it exists).

Currently, any LTSP install:
 - From Ubuntu Alternate
 - By installing ltsp-server directly
 - Using Edubuntu live
 - By install ltsp from the Edubuntu installer

Will fail until the user updates to a newer ltsp and runs: sudo ltsp-
update-sshkeys && sudo ltsp-update-image

** Affects: ltsp (Ubuntu)
     Importance: Undecided
     Assignee: Stéphane Graber (stgraber)
         Status: In Progress

** Affects: ltsp (Ubuntu Natty)
     Importance: Undecided
     Assignee: Stéphane Graber (stgraber)
         Status: In Progress

** Also affects: ltsp (Ubuntu Natty)
   Importance: Undecided
       Status: New

** Changed in: ltsp (Ubuntu Natty)
     Assignee: (unassigned) => Stéphane Graber (stgraber)

** Changed in: ltsp (Ubuntu Natty)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/727339

Title:
  LTSP on natty doesn't support ecdsa ssh key. Login impossible