Eroare conectare SSH: Could not load host key: /etc/ssh/ssh_host_rsa_key

In /var/log/auth.log , observam urmatoarea eroare:

error: Could not load host key: /etc/ssh/ssh_host_rsa_key error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ error: @ WARNING: UNPROTECTED PRIVATE KEY FILE! @ error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ error: Permissions 0777 for ‘/etc/ssh/ssh_host_dsa_key’ are too open. error: It is recommended that your private key files are NOT accessible by others. error: This private key will be ignored. error: bad permissions: ignore key: /etc/ssh/ssh_host_dsa_key error: Could not load host key: /etc/ssh/ssh_host_dsa_key fatal: /var/run/sshd must be owned by root and not group or world-writable.

Eroarea este destul de explicativa, iar aceasta se poate rezolva prin schimbarea permisiunilor, ruland urmatoarele comenzi:

chmod 600 /var/run/sshd

chmod 600 /etc/ssh/ssh_host_*