Question 1

How do I install MySQL on a VPS?

Accepted Answer

On Ubuntu/Debian: "sudo apt install mysql-server". Run "sudo mysql_secure_installation" to set the root password and secure defaults. Create databases and users with "mysql -u root -p" and standard SQL commands.

Question 2

Should I use MySQL or MariaDB?

Accepted Answer

Both are excellent choices. MySQL is Oracle-backed with enterprise features. MariaDB is community-driven, fully compatible, and often faster. For most applications, they're interchangeable. MariaDB is the default on many Linux distributions.

Question 3

How do I optimize MySQL for a small VPS?

Accepted Answer

Reduce innodb_buffer_pool_size to 128-256MB for small VPS, set max_connections appropriately (50-100), disable performance_schema if not needed, and use InnoDB for all tables. These settings work well for 1-2GB RAM VPS instances.

Question 4

How do I backup MySQL automatically?

Accepted Answer

Use mysqldump in a cron job: "mysqldump -u root -p'password' --all-databases > backup.sql". For larger databases, use mysqlpump or Percona XtraBackup. Store backups off-server using rsync or cloud storage for disaster recovery.

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