By Miguel
Ubuntu SFTP SSH access work great but I got this error at beginning of every access :
error: Could not load host key: /etc/ssh/ssh_host_ed12345_key
All the log here :
Sep 2 12:21:07 Node sshd[1234]: error: Could not load host key: /etc/ssh/ssh_host_ed12345_key
Sep 2 12:21:08 Node sshd[1234]: Accepted publickey for root from 12.34.56.78 port 12345 ssh2: RSA .......
Sep 2 12:21:08 Node sshd[1234]: pam_unix(sshd:session): session opened for user root by (uid=0)
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This is fine that you see this error.
To stop seeing this error, please comment out the following line in your /etc/ssh/sshd_config file:
HostKey /etc/ssh/ssh_host_ed25519_key
According to this bug post it may indicate something went wrong with your openssh server install. I had this issue on a ubuntu box and a simple sudo apt-get install openssh-server --reinstall recreated the missing keys under /etc/ssh/ and resolved the issue.
Here’s a quick solution for this problem: http://trick77.com/2014/09/30/could-not-load-host-key-etcsshssh_host_ed25519_key/
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