MYSQL RESET ROOT PASSWORD IN REDHAT

step:1.stop mysql database service.

sudo /etc/init.d/mysqld stop




step:2.open mysql safe mode use this command    

sudo mysqld_safe




step:3.   login to root user

mysql -u root





step:4.use any database .

use mysql;



 step.5.use this command

update user set authentication_string=PASSWORD('mynewpassword') where User='root';

flush privileges;

quit



step:6.stop mysql database service.

sudo /etc/init.d/mysqld stop

step:7.start mysql database service

sudo /etc/init.d/mysqld start


step.8. login to mysql use new password

mysql -u root -p
Location: Delhi, India

Comments

Post a Comment

Popular posts from this blog

MySQL Point in Time Recovery: How To Configure And How Does it Work?

Image
 MySQL Point in Time Recovery: How To Configure And How Does it Work? The point-in-time recovery allows you to restore a MySQL database to a specific time in the past. The point-in-time recovery relies on two key components: Full backup: This serves as the foundation for recovery, providing the starting state of the database. Binary logs: These binary log files record all changes made to the database, allowing you to replay those changes to a desired point. If you don’t have a full backup or binary logs enabled, you cannot carry the point-in-time recovery. We’ll illustrate how to perform the point-in-time recovery in MySQL to recover a database to a specific point in time. Checking binar log status:- We need login to mysql server and run given below command:- show global variables like 'log_bin' ; Show output for enable mysql-bin log. Creating a new sample database & taking a full backup:- We are going to login in mysql databse and creating new database and table.given
Read more

MySQL Replication Switchover: Step-by-Step Guide

Image
 MySQL Replication Switchover: Step-by-Step Guide MySQL replication is a powerful feature that allows you to create redundant copies of your database for improved availability and scalability. In certain scenarios, it becomes necessary to switch the roles of the master and slave servers in a replication setup. This article will guide you through the process of performing a MySQL replication switchover, ensuring a smooth transition without any data loss. Let’s dive into the step-by-step instructions. I have tow node one is master node and another is slave node.Given below details:- Current Master: 192.168.70.10 Current Slave : 192.168.70.11 Verifying the Replication:- Before initiating the switchover, it’s important to verify that replication is functioning correctly on the current Slave server (192.168.70.11). Execute the following queries to ensure the replication status: mysql> show slave status\G This command displays the slave’s status, including information such as replication
Read more

Mysql Commercial Mysqlbackup:How to take Differential or Incremental Backup and resotre using mysqlbackup utility in mysql 8.0.37 enterprise edition

Image
Mysql Commercial Mysqlbackup:How to take Differential or Incremental Backup and resotre using mysqlbackup utility in mysql 8.0.37 enterprise edition Incremental vs Differential Backup:- The main difference between incremental and differential backups is how they save space and time by storing only changed files. However, the effectiveness of incremental backups is very different from differential backups. Before we dive into the differences between Incremental and Differential backups let’s review Full Backups.  Are you still using Full Backups? In its simplest form, a full backup is the starting point for both Incremental and Differential backup strategies. A full backup, of course, backs up all the data on a partition or disk by copying all disk sectors with data to the backup image file.  A full backup is time-consuming and requires a lot of space, it’s usually used as part of a backup plan with long intervals, like once a week or a month. During this time, if anything goes wrong, a
Read more