off topic - Openssh question

["Sudhaker P" <perams27 hotmail com>]

hi all gurus,
I've got openssh_2.9.9p2 on my Redhat linux 6.2 servers . i've moved the 
servers to another and there has been a change in the IP address.There 
servers copy files from the servers at previous locations with scp using 
preshared keys.
i'm not much familiar with the preshared keys.Can you please guide me what I 
have to do for the servers to perform normal operations as being done 
previously.

Any suggestions will be greatly appreciated.

-Regards,

Peram


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