Neither could I. I did do the key regeneration previously, but without the '' and the -N. Please explain those flags, since I cannot look at a manpage right now...
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sshd - Could not load host key: /etc/ssh/ssh_host_key
When I attempt to start sshd, I get the following debug output.
debug2: read_server_config: filename /etc/ssh/sshd_config
debug1: sshd version OpenSSH_3.8.1p1 Debian-8.sarge.4
Could not load host key: /etc/ssh/ssh_host_key
debug3: Not a RSA1 key file /etc/ssh/ssh_host_rsa_key.
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Could not load host key: /etc/ssh/ssh_host_rsa_key
debug3: Not a RSA1 key file /etc/ssh/ssh_host_dsa_key.
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
Could not load host key: /etc/ssh/ssh_host_dsa_key
Disabling protocol version 1. Could not load host key
Disabling protocol version 2. Could not load host key
sshd: no hostkeys available -- exiting.
I have set permissions several times. I can post my sshd_config also if needed.
Thanks!
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Answers
So you installed a new version, but you're running the old one? Seems like a roundabout way to solve the problem. I'm sure the 4.0 keys were generated with blank passphrases. You'd never use a passphrase for a server key because otherwise sshd wouldn't work after an unattended boot. Who would want that?
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by: TimEliseoPosted on 2005-05-18 at 20:05:39ID: 14033239
You could try regenerating all of your server keys (it can't hurt, unless you have clients that expect the old keys):
ssh-keygen -t rsa1 -f /etc/ssh/ssh_host_key -N ''
ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N ''
ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N ''
Note that '' is two single quotes, not a double quote.
The error about looking for RSA1 keys in the RSA and DSA files seems strange though. If regenerating keys doesn't work you should post your sshd_config.
This is probably a PAQ, but I couldn't find it...