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    • OCI Linux: Not Able Access Instance due to /etc Directory Permission Change (chmod -R 777 /etc)

    in Linux

    Applies to:

    Linux OS - Version Oracle Linux 7.9 and later
    Linux x86-64

    Symptoms:
    /etc directory permission was accidentally changed to 777 by running command below and unable to access the instance now
    # chmod -R 777 /etc/

    Solution:

    1. Login to the server using single user mode
    2. Remount the root filesystem with read write option
      # mount -o remount,rw /
      # cd /etc
      Check the current permissions
      # ls -ltr
    3. Revert permission changes to default by following commands
      # rpm --setperms -a
      If files user and group ownership also changed then run
      # rpm --setugids -a
    4. Files which are not owned by any packages need to be corrected manually below to regain ssh access
    Tagged:

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