openssh unix dev - Apr 2001 - Could not load host key

Hi All,

So I tried to upgrade to 2.5.2p2 today.  Got this when I stopped/started
sshd:

    Disabling protocol version 2. Could not load host key

Re-installed 2.3.0p1 and all was well again.

This look familiar to anybody?


Thanks,
Jim
-- 
Jim Seymour                  | PGP Public Key available at:
jseymour at jimsun.LinxNet.com  | http://www.uk.pgp.net/pgpnet/pks-commands.html
http://jimsun.LinxNet.com    |

On Fri, 20 Apr 2001, Jim Seymour wrote:
> Hi All,
> 
> So I tried to upgrade to 2.5.2p2 today.  Got this when I stopped/started
> sshd:
> 
>     Disabling protocol version 2. Could not load host key
> 
> Re-installed 2.3.0p1 and all was well again.
> 
> This look familiar to anybody?
> 
> 
> Thanks,
> Jim
> -- 
> Jim Seymour                  | PGP Public Key available at:
> jseymour at jimsun.LinxNet.com  |
http://www.uk.pgp.net/pgpnet/pks-commands.html
> http://jimsun.LinxNet.com    |
Yep, it does look familiar.  Look at your sshd_config for the HostKey
entries.  If I remember correctly, 2.5.1 added support for DSA and RSA
hostkeys.  My guess is that sshd is not finding either of those for SSH2
support.  I have the following in my sshd_config file:

HostKey /usr/local/etc/ssh_host_key
HostKey /usr/local/etc/ssh_host_dsa_key
HostKey /usr/local/etc/ssh_host_rsa_key

and of course those three host keys exist.  ssh_host_dsa_key and
ssh_host_rsa_key are for SSH2 (I believe).  ssh_host_key is for SSH1 only.
I belive all three keys are generated by the makefile and are installed
when you do a 'make install'.  If you're upgrading from rpms
you're on
your own, as I know nothing about them.

     -Daniel

Jim Seymour writes:
 > Hi All,
 > 
 > So I tried to upgrade to 2.5.2p2 today.  Got this when I stopped/started
 > sshd:
 > 
 >     Disabling protocol version 2. Could not load host key
 > 
 > Re-installed 2.3.0p1 and all was well again.
 > 
 > This look familiar to anybody?

You need to update your sshd_config with the pathnames of the various
host keys it needs.  See the default config file created in your OpenSSH
build.  You may also need to create additional host keys (specifically
the SSH2 RSA key).