How to Install MySQL on Linux.

[root@amir ~]# yum -y install mysql-server [root@amir ~]# vi /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # add character-set-server=utf8 [root@amir ~]#/etc/rc.d/init.d/mysqld start Initializing MySQL database:  WARNING: The host 'amir.server.world' could not be looked up with resolveip. This probably means that your libc libraries are not 100 % compatible with this binary MySQL version. The MySQL daemon, mysqld, should work normally with the exception that host name resolving will not work. This means that you should use IP addresses instead of hostnames when specifying MySQL privileges ! Installing MySQL system tables... OK Filling help tables... OK ... ... ... You can test the MySQL daemon with mysql-test-run.pl cd /usr/mysql-test ; perl mysql-test-run.pl Please report any problems with the /usr/bin/mysqlbug script!                                               [  OK  ] Starting mysqld:                      [  OK  ] [root@amir ~]# chkconfig mysqld on

[2]	Initial settings for MySQL.

[root@amir ~]# mysql_secure_installation NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL       SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY! In order to log into MySQL to secure it, we'll need the current password for the root user.  If you've just installed MySQL, and you haven't set the root password yet, the password will be blank, so you should just press enter here. # Enter Enter current password for root (enter for none): OK, successfully used password, moving on... Setting the root password ensures that nobody can log into the MySQL root user without the proper authorisation. # set root password Set root password? [Y/n] y New password: # input any password Re-enter new password: Password updated successfully! Reloading privilege tables..  ... Success! By default, a MySQL installation has an anonymous user, allowing anyone to log into MySQL without having to have a user account created for them.  This is intended only for testing, and to make the installation go a bit smoother.  You should remove them before moving into a production environment. # remove anonymous users Remove anonymous users? [Y/n] y  ... Success! Normally, root should only be allowed to connect from 'localhost'.  This ensures that someone cannot guess at the root password from the network. # disallow root login remotely Disallow root login remotely? [Y/n] y  ... Success! By default, MySQL comes with a database named 'test' that anyone can access.  This is also intended only for testing, and should be removed before moving into a production environment. # remove test database Remove test database and access to it? [Y/n] y  - Dropping test database...  ... Success!  - Removing privileges on test database...  ... Success! Reloading the privilege tables will ensure that all changes made so far will take effect immediately. # reload privilege tables Reload privilege tables now? [Y/n] y  ... Success! Cleaning up... All done!  If you've completed all of the above steps, your MySQL installation should now be secure. Thanks for using MySQL! # try to connect with root [root@amir ~]# mysql -u root -p Enter password: # MySQL root password Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 11 Server version: 5.1.73 Source distribution Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. # display user list mysql>select user,host,password from mysql.user; +------+-----------+-------------------------------------------+ | user | host      | password                                  | +------+-----------+-------------------------------------------+ | root | localhost | ***************************************** | | root | 127.0.0.1 | ***************************************** | +------+-----------+-------------------------------------------+ 2 rows in set (0.00 sec) # display database list mysql>show databases; +--------------------+ | Database           | +--------------------+ | information_schema | | mysql              | +--------------------+ 2 rows in set (0.00 sec) mysql> exit Bye