ssh key update IMPORTANT security advisory please read

Henry Hardy hhardy01 at
Thu May 15 09:13:20 EDT 2008

Debian has published a recent security advisory regarding a documented
weakeness in the Debian openssl key generation procedure:

[DSA 1571-1] New openssl packages fix predictable random number

Accordingly we are changing the host keys on all Ubuntu and Debian systems.
Users should be prepared to accept the new host keys.

Additionally, ALL USERS MUST generate new private/public keypairs using the
patched ssl-keygen or equivalent (such as putty-keygen) and replace the
public key in their ~/.ssh/authorized_keys file. This applies to users with
accounts on crank, pedal, teach, grinch and all other Debian or Ubuntu

If you need help, please open a ticket by emailing sysadmin at with
your new pub key or a link to it. Please specify which machines on which you
have accounts in the message.


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