Mysql Installation:-

 Mysql Installation:-

==================

Package : mysql-5-6-community

Conf : /etc/my.conf

Port : 3306

Deamon : mysqld

Step1:- Download the mysql required packages on below URL

        https://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/

#wget https://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/mysql-community-common-5.6.48-2.el7.x86_64.rpm

#wget https://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/mysql-community-client-5.6.48-2.el7.x86_64.rpm

#wget https://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/mysql-community-libs-5.6.48-2.el7.x86_64.rpm

#wget https://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/mysql-community-server-5.6.48-2.el7.x86_64.rpm

#ls

total 91892

-rw-r--r--. 1 mysql mysql 21646164 Nov  3 21:46 mysql-community-client-5.6.48-2.el7.x86_64.rpm

-rw-r--r--. 1 mysql mysql   295756 Nov  3 21:46 mysql-community-common-5.6.48-2.el7.x86_64.rpm

-rw-r--r--. 1 mysql mysql  2346632 Nov  3 21:46 mysql-community-libs-5.6.48-2.el7.x86_64.rpm

-rw-r--r--. 1 mysql mysql 69800160 Nov  3 21:46 mysql-community-server-5.6.48-2.el7.x86_64.rpm

Install the rpms

=========================================

yum localinstall mysql-community-* -y

Changing the port {optional }

=======================================

Step2 : Changing default port 3306 to 4781 

====

  #vi /etc/my.conf

   [mysqld]

    port = 4781              3306 is the default port for mysql

  :wq

  #setenforce 0

  #getenforce 

   Permissive

  #yum -y install policycoreutils-python

  #semanage port -a -t mysqld_port_t -p tcp 4781

  #systemctl restart mysqld

  #netstat -ntlp

Step3: - set the mysql root user password 

======

# sudo 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 current password for root (enter for none):   <press enter>

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: Se#1rt53K (oracle1234)

Re-enter new password: Se#1rt53K (oracle1234) 

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] n

 ... skipping.

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...

ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist

 ... Failed!  Not critical, keep moving...

 - 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!

All done!  If you've completed all of the above steps, your MySQL

installation should now be secure.

Thanks for using MySQL!

Cleaning up...

Step4:-

======#

#mysql -u root -p 

password: Se#1rt53K   - oracle1234

>show databases;

>create database mydb;

>use mydb;

>create user 'test1'@'localhost' identified by 'Test@123'

>create user 'test1'@'%' identified by 'Test@123'

>GRANT ALL PRIVILEGES ON mydb.* TO 'test1'@'localhost';

>GRANT ALL PRIVILEGES ON mydb.* TO 'test1'@'%';

>FLUSH PRIVILEGES;   its a like same as commit

To shutdown mysql service

=========================

mysql -u root -poracle1234 shutdown   (not working).

password: 

mysql -u root -welcome shutdown

ps -ef|grep mysql

systemctl stop mysqld

systemctl start mysqld

ps -ef|grep mysql

[11:53 pm, 17/2/2025] Irfan Bhai: yum install firewalld -y

systemctl start firewalld

systemctl stop firewalld

 

systemctl disable firewalld

 

 firewall-cmd --list-ports

 

  

firewall-cmd --permanent --add-port=443/tcp --add-port=1521/tcp

success

[root@ayara-tr ~]# firewall-cmd --reload

success

firewall-cmd --permanent --add-port=3306/tcp

GRANT ALL PRIVILEGES ON mydb.* TO 'test2'@'%';