This is OpenSSH 4.4 on Solaris 8.
Any idea what's going on?


#/etc/init.d ./sshd start
3 SSHD: Generating DSA host key...
Generating public/private dsa key pair.
/usr/local/etc/ssh_host_dsa_key already exists.
Overwrite (y/n)? y
Your identification has been saved in /usr/local/etc/ssh_host_dsa_key.
Your public key has been saved in /usr/local/etc/ssh_host_dsa_key.pub.
The key fingerprint is:
08:cb:f2:a6:f5:a8:07:45:92:5c:a7:f5:2c:07:af:cb root@baj4
SSHD: Starting the Secure Shell Daemon
/usr/local/etc/sshd_config line 30: Deprecated option
RhostsAuthentication
/usr/local/etc/sshd_config line 53: Deprecated option CheckMail
Disabling protocol version 2. Could not load host key
sshd: no hostkeys available -- exiting.

>
> This is OpenSSH 4.4 on Solaris 8.
> Any idea what's going on?

As it says at the bottom, you have no hostkeys. Use ssh-keygen to
generate some, and put them in the default location, here probably
/usr/local/etc/ssh_host_{dsa,rsa}_key{.pub}

>
> #/etc/init.d ./sshd start
> 3 SSHD: Generating DSA host key...
> Generating public/private dsa key pair.
> /usr/local/etc/ssh_host_dsa_key already exists.
> Overwrite (y/n)? y
> Your identification has been saved in /usr/local/etc/ssh_host_dsa_key.
> Your public key has been saved in /usr/local/etc/ssh_host_dsa_key.pub.
> The key fingerprint is:
> 08:cb:f2:a6:f5:a8:07:45:92:5c:a7:f5:2c:07:af:cb root@baj4
> SSHD: Starting the Secure Shell Daemon
> /usr/local/etc/sshd_config line 30: Deprecated option
> RhostsAuthentication
> /usr/local/etc/sshd_config line 53: Deprecated option CheckMail
> Disabling protocol version 2. Could not load host key
> sshd: no hostkeys available -- exiting.


--
Richard Silverman
res@qoxp.net

I regenerated all of these files, yet I still cannot start the sshd
daemon with Protocol 2 enabled.
Which key does it want?

ll /usr/local/etc/ssh_host_[dr]sa_key*
-rw------- 1 root root 672 Jul 19 16:13 /usr/local/etc/
ssh_host_dsa_key
-rw------- 1 root other 672 Jul 19 15:09 /usr/local/etc/
ssh_host_dsa_key.b
-rw-r--r-- 1 root other 600 Jul 19 16:13 /usr/local/etc/
ssh_host_dsa_key.pub
-rw------- 1 root root 600 Jul 17 11:51 /usr/local/etc/
ssh_host_dsa_key.pub.pub
-rw------- 1 root root 1675 Jul 19 16:12 /usr/local/etc/
ssh_host_rsa_key
-rw------- 1 root root 887 Jul 19 14:31 /usr/local/etc/
ssh_host_rsa_key.b
-rw-r--r-- 1 root root 392 Jul 19 16:12 /usr/local/etc/
ssh_host_rsa_key.pub

#:/etc/init.d ./sshd start
SSHD: Starting the Secure Shell Daemon
/usr/local/etc/sshd_config line 30: Deprecated option
RhostsAuthentication
/usr/local/etc/sshd_config line 53: Deprecated option CheckMail
Disabling protocol version 2. Could not load host key

On 2007-07-23, SQ <onestatusquo@yahoo.com> wrote:

> Which key does it want?
> ll /usr/local/etc/ssh_host_[dr]sa_key*
> Disabling protocol version 2. Could not load host key

Maybe in /etc/ssh/ or some other place. Check with
strings on the sshd binary:

# strings - /usr/sbin/sshd | grep /ssh_host_key
/etc/ssh/ssh_host_key

--
Elvis Notargiacomo master AT barefaced DOT cheek
http://www.notatla.org.uk/goen/