Virtualmin setup differed. No option for "Yes for MySQL and NO for PostgreSQL", only MariaDB and PostgreSQL.

MariaDB is the default so I chose that.

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I think that might make the "Configuring MySQL database" section defunct. IE: "sudo nano /etc/mysql/mysql.conf.d/mysql.cnf" does not exist.

Can we just skip this whole section now?

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Also, I had to use "sudo" in this line:

sudo sh ./install.sh --minimal

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When I "Enter mysql_secure_installation" it asks for root password, and none of the root passwords work. Even after I do "sudo -i" and change the root pw with "passwd".

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I can log into https://sendy.mydomain.com:10000/ with Virtualmin’s root password.

That password doesn't work for the above sequence either though.

I tried method 1 & 2 here https://linuxhandbook.com/authentication-token-manipulation-error.

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I used these instructions for the key file https://vpsfix.com/3052/key-pair-login-amazon-ec2-instance/.

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Not sure if this is related:

sudo su sendy

mkdir .ssh

mkdir: cannot create directory ‘.ssh’: Permission denied

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sudo mkdir .ssh

works. But it asks for PW again, and the PW still doesn't work.

[sudo] password for sendy:

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I went to AWS IAM and see there's no PW for "user sendy", but pressing "enter" without inputting any PW above doesn't work either.

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These FileZilla instructions may be helpful: https://vpsfix.com/3034/connect-linux-vps-ssh-puttyfilezilla/

But why can't we just use Virtualmin's file manager? I did that and it seemed to work fine.