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SSH Login Reports Error “Could not load host key: /etc/ssh/ssh_host_dsa_key”
Applies To:
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Symptoms:
Below messages written into /var/log/secure log file frequently:
... May 8 07:44:56 localhost sshd[50028]: error: Could not load host key: /etc/ssh/ssh_host_dsa_key May 8 07:48:21 localhost sshd[61114]: error: Could not load host key: /etc/ssh/ssh_host_dsa_key May 8 07:53:21 localhost sshd[92100]: error: Could not load host key: /etc/ssh/ssh_host_dsa_key ...
Cause:
SSH host key file referred in “/etc/ssh/sshd_config” file does not exist:
# /usr/sbin/sshd -T |grep hostkey Could not load host key: /etc/ssh/ssh_host_dsa_key hostkeyagent none hostkeyalgorithms ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss hostkey /etc/ssh/ssh_host_rsa_key hostkey /etc/ssh/ssh_host_dsa_key # ls -al /etc/ssh/ssh*key -rw-r----- 1 root ssh_keys 227 Mar 1 2022 /etc/ssh/ssh_host_ecdsa_key -rw-r----- 1 root ssh_keys 387 Mar 1 2022 /etc/ssh/ssh_host_ed25519_key -rw-r----- 1 root ssh_keys 1679 Mar 1 2022 /etc/ssh/ssh_host_rsa_key
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