After creating a new user in MariaDB / MySQL, flush permissions and MYSQL_SECURE_INSTALLATION

After installing LAMP on new servers (similar to as described here for CentOS), I’ve recently had two errors after the creation of MySQL users.

These user accounts required additional steps after creation – flushing permissions, and re-running the MySQL secure installation.

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Setting up a CentOS 7 local development VM with LAMP (Linux, Apache, MariaDB/MySQL, PHP+PHPMyAdmin)

I’m going to build a local VM with the following requirements:
1) It can host PHP/SQL-based websites
2) It has PHPMyAdmin to help administer any SQL databases
3) It matches available builds from popular providers (i.e. you can provision it in a similar way on Azure or AWS, but with a public domain name)
4) It only has a single account (this is not recommended for public systems)
5) I can access the web root using SFTP

As I already have several CentOS builds that have always been pre-setup with CPanel (and because CentOS is free), I’ve decided to do this build from scratch and without a control panel. I’m not going to be configuring options like multiple user accounts, so things will be fairly simple.

I’ll do it in steps (and test each time) to make sure everything’s working correctly. You could install everything all at once, but that would make it much harder to troubleshoot if an element didn’t work.

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