[Planetlab-users] SSH warning: remote host identification has changed

[Neil Spring]

On Aug 15, 2007, at 3:21 AM, Manuel J. Früh wrote:

> Hello everyone,
>
> on a large number of PL nodes I get an SSH warning that the host
> identification has changed and thus all connections are refused. So I
> downloaded the latest known_hosts file from PLC, but the problem still
> persists.
>
> Does anyone know how to solve this?

Avoid the hosts that are in debug mode.   You can find the nodes that  
are not in state "Boot" using sites.xml.  (https://www.planet-lab.org/ 
xml/sites.xml).   comon likely gives a nicer interface to the list of  
boot state nodes.

If you still get host identification warnings, it's likely a bug in  
your keys download.  Use:

https://subversion.umiacs.umd.edu/scriptroute/scriptroute/trunk/ 
planetlab/update_known_hosts

which is pretty well tested.

-neil