MySQL

sudo apt-get install mariadb-server mariadb-client sudo systemctl enable --now mariadb systemctl status mariadb mariadb --version

sudo vim /etc/mysql/mariadb.conf.d/50-server.cnf sudo systemctl restart mariadb.service systemctl status mariadb.service sudo mysql_secure_installation

Authorization

MySQL » Auth » Unix sudo su cat << DDL | mysql CREATE USER 'chorke'@'localhost' IDENTIFIED VIA unix_socket; GRANT ALL PRIVILEGES ON *.* TO 'chorke'@'localhost' WITH GRANT OPTION; FLUSH PRIVILEGES; DDL	MySQL » Auth » Local cat << DDL | mysql CREATE DATABASE IF NOT EXISTS chorke_orgwiki; CREATE USER 'chorke_orgwiki'@'localhost' IDENTIFIED BY 'sadaqah!'; GRANT ALL PRIVILEGES ON chorke_orgwiki.* TO 'chorke_orgwiki'@'localhost'; FLUSH PRIVILEGES; DDL
MySQL » Auth » Remote cat << DDL | mysql CREATE DATABASE IF NOT EXISTS chorke_orgwiki; CREATE USER 'chorke_orgwiki'@'%' IDENTIFIED BY 'sadaqah!'; GRANT ALL PRIVILEGES ON chorke_orgwiki.* TO 'chorke_orgwiki'@'%'; FLUSH PRIVILEGES; DDL

Backup Restore

BACKUP_DATE_TIME="$(date +'%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo -n password: ;read -s MYSQL_PWD;export MYSQL_PWD; echo
# password: sadaqah!

mysql     -h127.0.0.1 -P3306 -uchorke -Dchorke_orgwiki
mysqldump -h127.0.0.1 -P3306 -uchorke   chorke_orgwiki > ./chorke_orgwiki-${BACKUP_DATE_TIME}.dump
mysql     -h127.0.0.1 -P3306 -uchorke -Dchorke_orgwiki <   chorke_orgwiki-20241010-T1010-ZP0600.dump

Playground

SELECT @@character_set_database, @@collation_database; SHOW CHARACTER SET LIKE 'utf%'; SHOW CHARACTER SET;	show databases; use academia; show tables;	SELECT sysdate(); SELECT curdate(); SELECT now();

References

MySQL » Ubuntu » phpMyAdmin » Install MySQL » LDAP Store & Fetch Data MySQL » Ubuntu » 24.04 » Install MySQL » Dump MySQL » Helm
K8s/Ingress PostgreSQL OpenLDAP HAProxy Helm CIDR UFW