• MySQL Community Edition ¹⁾
• Realm of Espionage

• Fedora Server

• https://dev.mysql.com/downloads/repo/yum/

sudo dnf install 'https://dev.mysql.com/get/mysql80-community-release-fc29-2.noarch.rpm'

• Disables the latest GA repo and enables the 5.7 repo
• This is necessary for TrinityCore

sudo dnf repolist all | grep 'mysql'

sudo dnf config-manager --disable 'mysql80-community'

sudo dnf config-manager --enable 'mysql57-community' && sudo dnf repolist enabled | grep 'mysql'

sudo dnf install 'mysql-community-server'

echo '!includedir /etc/my.cnf.d' | sudo tee --append '/etc/my.cnf' > '/dev/null'

• The empty sql-mode setting is intentional ²⁾

sudo mkdir -p '/etc/my.cnf.d' && sudo -e '/etc/my.cnf.d/custom.cnf'

[mysqld]
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
expire_logs_days = 7
max_binlog_size = 100M
skip-networking = On
sql-mode = 

mysqladmin variables -u 'root' -p | egrep 'utf8|networking|socket'

sudo systemctl enable 'mysqld' --now

cat '/var/log/mysqld.log' | grep 'temporary password'

mysql_secure_installation

mysql -u 'root' -p

GRANT SELECT, INSERT ON *.* to 'maintenance'@'localhost' IDENTIFIED BY 'x';

FLUSH PRIVILEGES;

sudo -u 'mysql' mkdir -p '/var/lib/mysql/auth' && sudo -u 'mysql' -e '/var/lib/mysql/auth/maintenance' && sudo chmod '600' '/var/lib/mysql/auth/maintenance'

[mysqlcheck]
user=maintenance
password=x

sudo -e '/etc/systemd/system/db-m.service'

[Service]
User=mysql
Group=mysql
Type=oneshot
ExecStart='/usr/bin/mysqlcheck' --defaults-extra-file='/var/lib/mysql/auth/maintenance' --auto-repair --optimize --all-databases --force
ExecStartPost='/usr/bin/sync'

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

[Unit]
Description=MySQL Database Check, Repair, and Optimization
After=mysqld.service

[Timer]
OnCalendar=weekly
Persistent=true

[Install]
WantedBy=timers.target

select User,Host from mysql.user;

select @@datadir;

/var/lib/mysql/mysql.sock

/var/log/mysqld.log

sudo systemctl stop 'mysqld'

sudo rm -Rf '/etc/my.cnf'* '/var/lib/mysql'* '/var/log/mysqld.log' && sync

sudo dnf reinstall 'mysql-community-server'

validate_password_policy=LOW

mysql -u 'root' -p

SHOW VARIABLES LIKE 'validate_password%';

• Default policy is MEDIUM

mysql -u 'root' -p

SET GLOBAL validate_password_policy=LOW;

mysql -u 'root' -p

UNINSTALL PLUGIN validate_password;

mysql -u 'root' -p

INSTALL PLUGIN validate_password SONAME 'validate_password.so';