Backup discourse from the command line

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where should I run this command? on my cloud server terminal or my local machine?
although either give me permission denied error

A screenshot of a terminal window showing an unsuccessful ssh login attempt with the message "Permission denied (publickey)." (Captioned by AI)
A screenshot of a terminal window showing an unsuccessful ssh login attempt with the message "Permission denied (publickey)." (Captioned by AI)1032×196 29 KB