{"id":14,"date":"2020-10-12T10:13:13","date_gmt":"2020-10-12T01:13:13","guid":{"rendered":"https:\/\/centos.ihavenomoney.co.kr\/?page_id=14"},"modified":"2025-12-26T14:05:12","modified_gmt":"2025-12-26T05:05:12","slug":"mysql-%ec%84%a4%ec%b9%98","status":"publish","type":"page","link":"https:\/\/centos.ihavenomoney.co.kr\/?page_id=14","title":{"rendered":"MySql \uc124\uce58"},"content":{"rendered":"\n

MySql  \uae30\ubcf8\uc124\uce58<\/h2>\n\n\n\n

Remark:<\/h3>\n\n\n\n

MySql \uc758 \ucd5c\uc2e0 \ubc84\uc804 version: 8.0.23 \uc744 \uc124\uce58\ud574 \ubcf4\uc790.<\/p>\n\n\n\n

1.  Download the MySQL repositories<\/h3>\n\n\n\n
# sudo wget https:\/\/dev.mysql.com\/get\/mysql80-community-release-el7-3.noarch.rpm<\/pre>\n\n\n\n
2. Install MySQL packages<\/h3>\n\n\n\n
# sudo rpm -Uvh mysql80-community-release-el7-3.noarch.rpm<\/pre>\n\n\n\n
3. Install MySQL<\/h3>\n\n\n\n
# sudo yum install mysql-server<\/pre>\n\n\n\n
4. Start MySQL<\/h3>\n\n\n\n
# sudo systemctl start mysqld<\/pre>\n\n\n\n
5. Start MySQL<\/h3>\n\n\n\n
# sudo systemctl status mysqld\n<\/pre>\n\n\n\n
# sudo systemctl status mysqld\n\u25cf mysqld.service - MySQL Server\n   Loaded: loaded (\/usr\/lib\/systemd\/system\/mysqld.service; enabled; vendor preset: disabled)\n   Active: active (running) since Tue 2021-01-19 11:19:30 KST; 2h 32min ago\n     Docs: man:mysqld(8)\n           http:\/\/dev.mysql.com\/doc\/refman\/en\/using-systemd.html\n  Process: 3137 ExecStartPre=\/usr\/bin\/mysqld_pre_systemd (code=exited, status=0\/SUCCESS)\n Main PID: 3214 (mysqld)\n   Status: \"Server is operational\"\n   CGroup: \/system.slice\/mysqld.service\n           \u2514\u25003214 \/usr\/sbin\/mysqld\n<\/pre>\n\n\n\n
5. MySQL Root User temporary root password check<\/h3>\n\n\n\n
# sudo grep 'password' \/var\/log\/mysqld.log<\/pre>\n\n\n\n
# sudo grep 'password' \/var\/log\/mysqld.log\n2021-01-19T02:18:21.839765Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: &12323232<\/pre>\n\n\n\n
6. mysql_secure_installation<\/h3>\n\n\n\n
sudo mysql_secure_installation<\/pre>\n\n\n\n
\n
root \uacc4\uc815\uc774 \ube44\ubc00\ubc88\ud638 \uc778\uc99d\uc774 \uc544\ub2c8\ub77c auth_socket<\/code> \ubc29\uc2dd<\/strong>\uc73c\ub85c \uc124\uc815\ub428<\/h3>\n\n\n\n
Ubuntu\uc5d0\uc11c apt install mysql-server<\/code>\ub85c \uc124\uce58\ud558\uba74
MySQL root \uacc4\uc815\uc740 \uae30\ubcf8\uc801\uc73c\ub85c \ube44\ubc00\ubc88\ud638 \ub85c\uadf8\uc778\uc744 \ub9c9\uace0<\/strong>,
OS\uc758 root<\/code> \uc0ac\uc6a9\uc790\ub9cc \uc811\uc18d \uac00\ub2a5\ud558\ub3c4\ub85d \uc124\uc815\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n
\uc989,<\/p>\n\n\n\n
    \n
  • \u274c mysql -u root -p<\/code> \u2192 \uc2e4\ud328<\/li>\n\n\n\n
  • \u2705 sudo mysql<\/code> \u2192 \uc131\uacf5<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n
    localhost@localhost:~$ sudo mysql_secure_installation\n\nSecuring the MySQL server deployment.\n\nConnecting to MySQL using a blank password.\n\nVALIDATE PASSWORD COMPONENT can be used to test passwords\nand improve security. It checks the strength of password\nand allows the users to set only those passwords which are\nsecure enough. Would you like to setup VALIDATE PASSWORD component?\n\nPress y|Y for Yes, any other key for No: y\n\nThere are three levels of password validation policy:\n\nLOW    Length >= 8\nMEDIUM Length >= 8, numeric, mixed case, and special characters\nSTRONG Length >= 8, numeric, mixed case, special characters and dictionary file\n\nPlease enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 0\n\nSkipping password set for root as authentication with auth_socket is used by default.\nIf you would like to use password authentication instead, this can be done with the \"ALTER_USER\" command.\nSee https:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/alter-user.html#alter-user-password-management for more information.\n\nBy default, a MySQL installation has an anonymous user,\nallowing anyone to log into MySQL without having to have\na user account created for them. This is intended only for\ntesting, and to make the installation go a bit smoother.\nYou should remove them before moving into a production\nenvironment.\n\nRemove anonymous users? (Press y|Y for Yes, any other key for No) : n\n\n ... skipping.\n\n\nNormally, root should only be allowed to connect from\n'localhost'. This ensures that someone cannot guess at\nthe root password from the network.\n\nDisallow root login remotely? (Press y|Y for Yes, any other key for No) : No\n\n ... skipping.\nBy default, MySQL comes with a database named 'test' that\nanyone can access. This is also intended only for testing,\nand should be removed before moving into a production\nenvironment.\n\n\nRemove test database and access to it? (Press y|Y for Yes, any other key for No) : y\n - Dropping test database...\nSuccess.\n\n - Removing privileges on test database...\nSuccess.\n\nReloading the privilege tables will ensure that all changes\nmade so far will take effect immediately.\n\nReload privilege tables now? (Press y|Y for Yes, any other key for No) : y\nSuccess.\n\nAll done!\n<\/pre><\/div>\n\n\n\n
    7.  Root remote allow authority (root  % )<\/h3>\n\n\n\n
    localhost@localhost:~$ sudo mysql\nWelcome to the MySQL monitor.  Commands end with ; or \\g.\nYour MySQL connection id is 19\nServer version: 8.4.7-0localhost0.25.10.3 (localhost)\n\nCopyright (c) 2000, 2025, Oracle and\/or its affiliates.\n\nOracle is a registered trademark of Oracle Corporation and\/or its\naffiliates. Other names may be trademarks of their respective\nowners.\n\nType 'help;' or '\\h' for help. Type '\\c' to clear the current input statement.\n\nmysql> use mysql\nReading table information for completion of table and column names\nYou can turn off this feature to get a quicker startup with -A\n\nDatabase changed\nmysql> SELECT user, host, plugin\n    -> FROM mysql.user\n    -> WHERE user = 'root';\n+------+-----------+-------------+\n| user | host      | plugin      |\n+------+-----------+-------------+\n| root | localhost | auth_socket |\n+------+-----------+-------------+\n1 row in set (0.00 sec)<\/pre><\/div>\n\n\n\n
    plugin \uac12\uc774  auth_socket \ub418\uc5b4 \uc788\uace0,
    IP \ub85c \uc138\ud305\ud558\uba74 host mysql \ub85c\uadf8\uc778\uc774 \ub418\uc9c0 \uc54a\uc74c<\/p>\n\n\n\n
    \ud83d\udfe2 \ubc29\ubc95 1\ufe0f\u20e3 (\uac00\uc7a5 \uad8c\uc7a5) : sudo mysql<\/code> \uc0ac\uc6a9<\/h2>\n\n\n\n
    \ubcf4\uc548\uc801\uc73c\ub85c \uac00\uc7a5 \uc548\uc804\ud55c \uae30\ubcf8 \ubc29\uc2dd<\/strong>\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n
    sudo mysql\n<\/code><\/pre>\n\n\n\n
    \n
    \uc11c\ubc84 \uc6b4\uc601 \ud658\uacbd\uc5d0\uc11c\ub294 \uc774 \ubc29\ubc95\uc744 \uadf8\ub300\ub85c \uc4f0\ub294 \uac8c \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n\n\n\n
    \n\n\n\n
    \ud83d\udfe1 \ubc29\ubc95 2\ufe0f\u20e3 : root \uacc4\uc815\uc744 \ube44\ubc00\ubc88\ud638 \ub85c\uadf8\uc778 \uac00\ub2a5\ud558\uac8c \ubcc0\uacbd<\/strong><\/h2>\n\n\n\n
    \n
    \ub85c\uceec \uac1c\ubc1c\ud658\uacbd\uc5d0\uc11c \ud3b8\ud560 \ub54c \uc0ac\uc6a9<\/p>\n<\/blockquote>\n\n\n\n
    \u2460 MySQL \uc811\uc18d<\/h3>\n\n\n\n
    sudo mysql\n<\/code><\/pre>\n\n\n\n
    \u2461 \uc778\uc99d \ubc29\uc2dd \ubcc0\uacbd + \ube44\ubc00\ubc88\ud638 \uc124\uc815<\/h3>\n\n\n\n
    ALTER USER 'root'@'localhost'\nIDENTIFIED WITH mysql_native_password\nBY '\uc0c8\ube44\ubc00\ubc88\ud638';\n\nFLUSH PRIVILEGES;\n<\/code><\/pre>\n\n\n\n
    \n
    \uc5d0\ub7ec\uc2dc -> mysql_native_password \uc548\ub41c\uc0c1\ud0dc,  \uae30\uc874 caching_sha2_password \uc0ac\uc6a9<\/h4>\n\n\n\n
    ERROR 1524 (HY000): Plugin 'mysql_native_password' is not loaded<\/pre><\/div>\n<\/blockquote>\n\n\n\n
    mysql>ALTER USER 'root'@'localhost' IDENTIFIED WITH caching_sha2_password BY '\ube44\ubc00\ubc88\ud638';<\/pre><\/div>\n\n\n\n
    \u2462 \uc811\uc18d \ud14c\uc2a4\ud2b8<\/h3>\n\n\n\n
    mysql -u root -p\n<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    \ud83d\udd34 \ubc29\ubc95 3\ufe0f\u20e3 : root \ub300\uc2e0 \ubcc4\ub3c4 \uad00\ub9ac\uc790 \uacc4\uc815 \uc0dd\uc131 (\ucd94\ucc9c)<\/strong><\/h2>\n\n\n\n
    \n
    \uc6b4\uc601 \ud658\uacbd\uc5d0\uc11c\ub294 \uc774 \ubc29\ubc95\uc774 \ubca0\uc2a4\ud2b8<\/strong><\/p>\n<\/blockquote>\n\n\n\n
    CREATE USER 'admin'@'localhost'\nIDENTIFIED BY '\ube44\ubc00\ubc88\ud638';\n\nGRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost'\nWITH GRANT OPTION;\n\nFLUSH PRIVILEGES;\n<\/code><\/pre>\n\n\n\n
    \uc811\uc18d:<\/p>\n\n\n\n
    mysql -u admin -p<\/code><\/pre>\n\n\n\n
    8.  Remote allow configuration (bind-address<\/code> )<\/h3>\n\n\n\n
    # sudo vi \/etc\/mysql\/mysql.conf.d\/mysql.cnf<\/pre><\/div>\n\n\n\n
    # \uc8fc\uc11d\ucc98\ub9ac\n\n#bind-address           = 127.0.0.1\n#mysqlx-bind-address    = 127.0.0.1\n<\/pre><\/div>\n\n\n\n
    9.\u00a0 \ubc29\ud654\ubcbd \uc624\ud508 \ubc0f Mysql Restart<\/h3>\n\n\n\n
    # sudo systemctl restart mysql\n\n# sudo ufw allow mysql\n<\/pre><\/div>\n\n\n\n
    <\/div>\n\n\n\n
    10.  MySQL Workbench Connect  test
    \n
    \"\"<\/figure><\/h3>\n\n\n\n
    <\/h3>\n","protected":false},"excerpt":{"rendered":"
    MySql  \uae30\ubcf8\uc124\uce58 Remark: MySql \uc758 \ucd5c\uc2e0 \ubc84\uc804 version: 8.0.23 \uc744 \uc124\uce58\ud574 \ubcf4\uc790. 1.  Download the MySQL repositories # sudo wget https:\/\/dev.mysql.com\/get\/mysql80-community-release-el7-3.noarch.rpm 2. Install MySQL packages # sudo rpm -Uvh mysql80-community-release-el7-3.noarch.rpm 3. Install MySQL # sudo yum install mysql-server 4. Start MySQL # sudo systemctl start mysqld 5. Start MySQL # sudo systemctl status mysqld # sudo …
    MySql \uc124\uce58<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-14","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/pages\/14","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14"}],"version-history":[{"count":16,"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/pages\/14\/revisions"}],"predecessor-version":[{"id":657,"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/pages\/14\/revisions\/657"}],"wp:attachment":[{"href":"https:\/\/centos.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}