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--- servers:mariadb [2018/07/23 12:40] – Sean Rhone
+++ servers:mariadb [2023/09/12 17:25] – [Settings] Sean Rhone
@@ Line 1: / Line 1: @@
+====== Information ======
+  * MariaDB ((https://mariadb.org/about))
+  * [[Information:Realm of Espionage]]
+===== References =====
+  * https://mariadb.com/kb/en/configuring-mariadb-with-option-files/
+  * https://mariadb.com/kb/en/legacy-clients-and-utilities/
+===== Prerequisites =====
+  * [[distros:fedora_server|Fedora Server]]
+====== Settings ======
+  * Settings being done before installation is intentional
+  sudo mkdir -p '/etc/my.cnf.d' && sudo -e '/etc/my.cnf.d/custom.cnf'
+<code>
+[client]
+default-character-set = 'utf8mb4'
+[mariadb-client]
+default-character-set = 'utf8mb4'
+[mariadbd]
+character-set-client-handshake = 'FALSE'
+character-set-server = 'utf8mb4'
+collation-server = 'utf8mb4_unicode_ci'
+init-connect='SET NAMES utf8mb4'
+expire_logs_days = '7'
+max_binlog_size = '100M'
+skip-networking = 'On'
+table_definition_cache = '1400'</code>
+==== Verify =====
+****
+  sudo mysqladmin variables | egrep 'utf8|networking|socket'
+====== Dependencies ======
+****
+  sudo dnf install 'mariadb-server'
+====== Initial Setup ======
+****
+  sudo systemctl enable 'mariadb' --now && sudo mariadb-secure-installation
+====== Database Repair and Optimization ======
+===== Create MySQL User =====
+  sudo mariadb
+  GRANT SELECT, INSERT ON *.* to 'maintenance'@'localhost' IDENTIFIED BY 'x';
+  FLUSH PRIVILEGES;
+  EXIT
+===== Authentication File =====
+  sudo mkdir -p '/var/lib/mysql/auth' && sudo -e '/var/lib/mysql/auth/maintenance' && sudo chown -R 'mysql':'mysql' '/var/lib/mysql/auth' && sudo chmod '600' '/var/lib/mysql/auth/maintenance' && sync
+<code>
+[mariadb-check]
+user=maintenance
+password=x</code>
+===== Service =====
+  sudo -e '/etc/systemd/system/db-m.service'
+<code>
+[Service]
+User=mysql
+Group=mysql
+Type=oneshot
+ExecStart='/usr/bin/mariadb-check' --defaults-extra-file='/var/lib/mysql/auth/maintenance' --auto-repair --optimize --all-databases --force
+ExecStartPost='/usr/bin/sync'</code>
+===== Timer =====
+  sudo -e '/etc/systemd/system/db-m.timer' && sudo systemctl daemon-reload && sudo systemctl enable 'db-m.timer' --now && sudo systemctl start 'db-m' && sudo systemctl status 'db-m' -l
+<code>
+[Unit]
+Description=MariaDB Database Check, Repair, and Optimization
+After=mariadb.service
+[Timer]
+OnCalendar=weekly
+Persistent=true
+[Install]
+WantedBy=timers.target</code>
+====== Notable Commands ======
+===== Show Users on Server =====
+****
+  select User,Host from mysql.user;
+===== Socket File =====
+****
+  /var/lib/mysql/mysql.sock