Cant login to aws ec2 instance

Question

The instance is running ubuntu 18 in my public_html folder, there is a folder called users I wanted to change all the subfolder permissions to 777 to I did the following command inside the public_html folder
find users -type d -exec chmod 777 {} ;

and now I cannot log in to the instance it says
FATAL ERROR: No supported authentication methods available (server sent: publickey)

Tim · Answer

SSH keys need to have specific permissions otherwise they won't work. Easiest is to restore from backup, which in AWS is a snapshot.
If you don't have a backup then you can:

Stop your instance
Mount the volume to another instance
Change the permissions back (permissionshere)
Mount the volume back to an instance as the main volume.

Cant login to aws ec2 instance

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