Install MySQL 5.5.17 on CentOS 6

[ifirstdoz]

MySQL is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. This is guide, howto install or upgrade MySQL Community Server latest and greatest version 5.5.17 on Fedora 16, 15, 14 13, 12, 11, 10, 9, 8, CentOS 6/5.7 and Red Hat (RHEL) 6.1/6/5.7.

Note: If you are upgrading MySQL (from earlier version), then make sure that you backup (dump and copy) your database and configs. And remember run mysql_upgrade command.
Login Via SSH and run Commands below
Step 1 : Install Remi repository

rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

Step 2 - Check Available MySQL versions

yum --enablerepo=remi,remi-test list mysql mysql-server

Step 3 - Update or Install MySQL 5.5.17

yum --enablerepo=remi,remi-test install mysql mysql-server

Step 5 - Start MySQL server and autostart MySQL on boot

service mysqld start

<--use restart after update

chkconfig --levels 235 mysqld on

Step 6 - MySQL Secure Installation

Set (Change) root password
Remove anonymous users
Disallow root login remotely
Remove test database and access to it
Reload privilege tables

Type the following in your SSH client

/usr/bin/mysql_secure_installation

Output:

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 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? [Y/n] Y
New 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? [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? [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 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 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!

Note: If you dont want some reason, do a MySQL Secure Installation then at least its very important to change the root users password

mysqladmin -u root password [your_password_here]

## Example ##
mysqladmin -u root password myownsecrectpass

Step 7:Connect to MySQL database (localhost) with password

mysql -u root -p

## OR ##
mysql -h localhost -u root -p

Step 8- Create Database, Create MySQL User and Enable Remote Connections to MySQL Database

This example uses following parameters:
DB_NAME = webdb
USER_NAME = webdb_user
REMOTE_IP = 10.0.15.25
PASSWORD = password123
PERMISSIONS = ALL

## CREATE DATABASE ##
mysql> CREATE DATABASE webdb;
 
## CREATE USER ##
mysql> CREATE USER 'webdb_user'@'10.0.15.25' IDENTIFIED BY 'password123';
 
## GRANT PERMISSIONS ##
mysql> GRANT ALL ON webdb.* TO webdb_user@'10.0.15.25';
 
##  FLUSH PRIVILEGES, Tell the server TO reload the GRANT TABLES  ##
mysql> FLUSH PRIVILEGES;

Step 9 -Enable Remote Connection to MySQL Server > Open MySQL Port (3306) on Iptables Firewall (as root user again)

nano -w /etc/sysconfig/iptables

-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT

service iptables restart

Test Remote Connection

mysql -h dbserver_name_or_ip_address -u webdb_user -p webdb

 

[Bharat]

i guess yum install mysql or yum install mysqld can do it as well

PS : here are some simple steps

yum install mysql-server php-mysql

/etc/init.d/httpd restart

Making MYSQL

mysql_install_db

Fix some permissons :

chkconfig --levels 235 mysqld on

Restart Mysql

/etc/init.d/mysqld restart