[tlug] Home LAMP webserver update- passwords, users, MySQL, phpmyadmin, Wordpress, oh my

[Kevin Sullivan <csr-kts@example.com>]

A quick thanks to all who pointed me towards useful info and tools to 
help me get the webserver up, CloudFlare domain services, PuTTY, WinSCP, 
etc. The basic tools have been selected and connected. Rejected: SSL, 
breaking my site, unnecessary today, etc. VNCserver/lightdm issue so 
server still has a head and I likes my Synaptic Package Manager searches 
so not yet headless but mostly administered via local network SSH or Web.

I am at the point of installing Wordpress, but managing the 
users/passwords for each main programs are starting to weigh heavily.
Anyone familiar with sensible Wordpress administration tips?

At the linux level, in addition to lost+found is me. Only a single sudo 
user, whoo hoo! Should be simple enough, eh?

-webmin

-Installing MySQL, it wants a user, password, and a database name, user 
password

-Installing phpmyadmin, it also wants user, password, database name

-Wordpress wants mysql superuser name and password, then apparently 
another wordpress user name, and pw....

What reasonably secure way to handle this myriad of users? Can/should I 
stick to just one user/pw for each component? deal with remembering 
different users/pws? What makes sense here for a 
single-user-administered website serving (for now) one Wordpress 
installation?

If you have been there, done that, and have suggestions for how many 
databases, permissions, users, passwords, etc. I am open to suggestions 
before I get too deep and befuddled up and need to start over from a 
base reconfiguration.

Kevin