Is having same host key on each host less secure?

[Brendan Choi]

If I copy the /etc/ssh_host_key file generated on one host to several
different hosts, their sshd's will still startup and work, and sessions
between the hosts are still encrypted.

Is there any significance to generating a unique host key file for each
machine? Is it less secure for all machines to be using the same host key
file?



Brendan