I installed the latest version of NetBSD 10.0 BETA and tried to ssh into it
from an older system, in my case Mac OS X running 9.5 (Mavericks). I got an
error “no hostkey alg”. Never saw anything like this when I was running 9.2,
and I was able to ssh into the new system from another system running 10.0.
After some research and experimentation I discovered that I needed to add this
line to the NetBSD /etc/ssh/sshd_config file:
HostKeyAlgorithms +ssh-rsa,ssh-dss
I mention it here in case someone else stumbles into the problem. Might be
nice to add this to the default sshd_config file with a comment that it might
be needed to allow older systems to connect.
-bob