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MySQL is a popular RDBMS (Relational Database Management System). MariaDB was born as a fork of MySQL. Nowadays the two products are a little bit different. Migrating data from one system to the other could not be a trivial task. MariaDB is fully GPLv2 licensed while MySQL has two licensing options, GPLv2 (for the Community edition) and Enterprise. In the Fedora repositories you can find:
MariaDB and MySQL packages conflict because they provide similar files. So, you can only install one of them, either MariaDB or MySQL, but not both. In addition you can also install MySQL commmunity edition (8.0 or 5.7) from the repository maintained by Oracle/MySQL itself. Install from Oracle MySQLThis page discusses third-party software sources not officially affiliated with or endorsed by the Fedora Project. Use them at your own discretion. Fedora recommends the use of free and open source software and avoidance of software encumbered by patents. Adding the MySQL repository to FedoraPlease download the release package provided by Oracle from: https://dev.mysql.com/downloads/repo/yum/ Once downloaded, please install it using dnf: sudo dnf install <path to downloaded rpm> Please note that this repository is provided by Oracle so any issues/bugs encountered will need to be reported to them via their communication channels: https://www.mysql.com/about/faq/ Installing MySQL on Fedorasudo dnf install mysql-community-server Start MySQL Service and Enable at Loggin:sudo systemctl start mysqld sudo systemctl enable mysqld find Default Password, For security reasons, MySQL generates a temporary root key. Please note that MySQL has even stricter security policies than MariaDB. sudo grep 'temporary password' /var/log/mysqld.log Configuring MySQL before the first usesudo mysql_secure_installation Then, answer the security questions as you prefer. or just say yes to all of them. Using MySQLsudo mysql -u root -p Removing MySQLI suggest to remove in the following way, the most appropriate and safe way without removing many dependencies is: sudo rpm -e --nodeps mysql-community-libs mysql-community-common mysql-community-server Install from Fedora Main RepoThe community provide a MySQL package in the main repo. sudo dnf install {community-mysql-server|mariadb-server} Configuring MySQL/MariaDBEnable the service at boot and start: sudo systemctl enable {mysqld|mariadb} sudo systemctl start {mysqld|mariadb} Installing MariaDB server from the Fedora Modular repositoryTo list the available versions (streams in modularity terminology) of MariaDB: dnf module list mariadb To enable the version of MariaDB you want to use and make the stream RPMs available in the package set: sudo dnf install mysql-community-server0 At this point you can verify that the available RPM provides the 10.4 verison of MariaDB server: sudo dnf install mysql-community-server1 To install MariaDB server: sudo dnf install mysql-community-server2 With modules, you could also install a specific profile: like client, devel or galera (the multi-master replica). For instance, if you don’t want to install the server stuff, but only the client packages: sudo dnf install mysql-community-server3
Configuring SQL before the first usesudo mysql_secure_installation Some questions will be asked: answer to them as you prefer; answering yes to all of them is perfectly fine. Using SQLsudo mysql -u root -p Removing SQLI suggest to remove in the following way: sudo dnf install mysql-community-server6 Install from PodmanDownloading a SQL Server Docker Imagesudo dnf install mysql-community-server7 See Logssudo dnf install mysql-community-server8 Starting a MySQL Server InstanceThe command’s below contain the random password generated for the root user; sudo dnf install mysql-community-server9 sudo systemctl start mysqld sudo systemctl enable mysqld0 Starting a MariaDB Server Instancesudo systemctl start mysqld sudo systemctl enable mysqld1 Password blank default for MariaDB The -d option used for BOTH in the podman run command above makes the container run in the background. Use this command to monitor the output from the container: Connecting to MySQL Server from within the Containersudo systemctl start mysqld sudo systemctl enable mysqld2 you must reset the server root password by issuing this statement: sudo systemctl start mysqld sudo systemctl enable mysqld3 Connecting to MariaDB Server from within the Containersudo systemctl start mysqld sudo systemctl enable mysqld4 Reseting SQL_ROOT_PASSWORDyou must reset the server root password by issuing this statement: sudo systemctl start mysqld sudo systemctl enable mysqld3 Stopping and Deleting a SQL Containersudo systemctl start mysqld sudo systemctl enable mysqld6 Deleting a SQL Containersudo systemctl start mysqld sudo systemctl enable mysqld7 you can do the same with docker just change podman with docker. Using the RDBMSConnect to the MySQL/MariaDB shell using the sudo mysql -u root -p4 command. For both of them, the command is sudo mysql -u root -p4. The syntax an the options are generally the same. sudo systemctl start mysqld sudo systemctl enable mysqld8 Once gained access to the shell you can get the running version of the software: sudo systemctl start mysqld sudo systemctl enable mysqld9 You can create a database: sudo grep 'temporary password' /var/log/mysqld.log0 Create a user: sudo grep 'temporary password' /var/log/mysqld.log1 List the available databases: sudo grep 'temporary password' /var/log/mysqld.log2 Files locationThe database disk storage is located in sudo mysql -u root -p6. How To Allow Remote Access MySQL/MariaDB/MYSQL CommunityAdd New Rule to FirewalldOpen SQL port (3306) on FireWalld: sudo grep 'temporary password' /var/log/mysqld.log3 ORsudo grep 'temporary password' /var/log/mysqld.log4 Restart firewalld.servicesudo grep 'temporary password' /var/log/mysqld.log5 Editing Conf. Files:Configuration files:
you can ensure that with the following command sudo rpm -e --nodeps mysql-community-libs mysql-community-common mysql-community-server0. Navigate to the line that begins with the bind-address directive. It will look like this: you could set this directive to a wildcard IP address, either *, ::, or 0.0.0.0: sudo grep 'temporary password' /var/log/mysqld.log6 After changing this line, save and close the file and then restart the MySQL service: sudo grep 'temporary password' /var/log/mysqld.log7 Creating a USERsudo grep 'temporary password' /var/log/mysqld.log8 Replace your_username and your_password depending on what you want the username and password to be. Here, host_ip_addr is the hostname or IP address of the computer from where you want to connect to the MySQL/MariaDB server. You can also use % as host_ip_addr if you want to connect from any computer. It can also be something like 192.168.2.% if you want to connect from computers from the IP range 192.168.2.1 – 192.168.2.254. Allow Accesssudo grep 'temporary password' /var/log/mysqld.log9 #OR It is common for people to want to create a "root" user that can connect from anywhere, so as an example, we’ll do just that, but to improve on it we’ll create a root user that can connect from anywhere on the local area network (LAN) sudo mysql_secure_installation0 sudo mysql_secure_installation1 Connectingsudo mysql_secure_installation2 How To Troubleshoot Issues in SQLVersion: sudo mysql_secure_installation3 Check parameters in configuration file:
sudo mysql_secure_installation4
sudo mysql_secure_installation5 Compatiblity between different version are not allowed Just install one of them. How to Access SQL Error LogsOftentimes, the root cause of slowdowns, crashes, or other unexpected behavior in SQL can In many cases, the error logs are most easily read with the less program, a command line u if SQL isn’t behaving as expected, you can obtain more information about the source of the
How To Troubleshoot Socket Errors in SQLSQL manages connections to the database server through the use of a socket file, a special kind of file that facilitates communications between different processes. The MySQL server’s socket file is named mysqld.sock and on Ubuntu systems it’s usually stored in the /var/run/mysqld/ directory. This file is created by the MySQL service automatically. Sometimes, changes to your system or your SQL configuration can result in SQL being unable to read the socket file, preventing you from gaining access to your databases. The most common socket error looks like this: sudo mysql_secure_installation6 There are a few reasons why this error may occur, and a few potential ways to resolve it. One common cause of this error is that the SQL service is stopped or did not start to begin with, meaning that it was unable to create the socket file in the first place. To find out if this is the reason you’re seeing this error, try starting the service with systemctl: sudo mysql_secure_installation7 Then try accessing the MySQL prompt once again. If you still encounter the socket error, there’s likely a deeper issue with your MySQL instance, in which case you should review the error log to see if it can provide any clues. Where is the MySQL installation directory?1.1 MySQL Installation Layout on Microsoft Windows. What is the default location for MySQL database?Introduction. Typically, MySQL will store data in the default directory of /var/lib/mysql.
Where is MySQL database file Linux?MySQL stores DB files in /var/lib/mysql by default, but you can override this in the configuration file, typically called /etc/my.
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