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    • OCI: How to Enable SSH Login for Local Users on Oracle Linux 9

    in Linux

    Goal:

    To enable SSH logins for local users on OL9 instances.

    Solution:

    Changing "PasswordAuthentication" from "no" to "yes" inside /etc/ssh/sshd_config is not enough because OL9 has a drop-in file /etc/ssh/sshd_config.d/50-cloud-init.conf that also contains "PasswordAuthentication no", which will override the same setting inside /etc/ssh/sshd_config.

    • Take a backup of /etc/ssh/sshd_config and /etc/ssh/sshd_config.d/50-cloud-init.conf.
    • Edit both files and change "PasswordAuthentication" from "no" to "yes".
    • Restart sshd.service.
    # systemctl restart sshd.service
    • Retest SSH logins for local users.
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