MySQL /etc/mysql/mysql.conf.d/mysqld.cnf
Compatibility
File Info
- Size
- 35 lines
- MD5
- 413ad72c57d45aa3495d48a3cd0535ed
- SHA256
- be9ce0b06477fa837c5f19c822419f903d19724d78569b7a93b6a3b288d33270
Quick Commands
curl https://exampleconfig.com/api/v1/config/original/413ad72c57d45aa3495d48a3cd0535ed?hint=mysqld.cnf
wget -O mysqld.cnf https://exampleconfig.com/api/v1/config/original/413ad72c57d45aa3495d48a3cd0535ed?hint=mysqld.cnf
# Copyright (c) 2014, 2025, Oracle and/or its affiliates. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License, version 2.0, # as published by the Free Software Foundation. # # This program is designed to work with certain software (including # but not limited to OpenSSL) that is licensed under separate terms, # as designated in a particular file or component or in included license # documentation. The authors of MySQL hereby grant you an additional # permission to link the program and your derivative works with the # separately licensed software that they have either included with # the program or referenced in the documentation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License, version 2.0, for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # The MySQL Server configuration file. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html [mysqld] pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock datadir = /var/lib/mysql log-error = /var/log/mysql/error.log
How to Install MySQL
Debian
sudo apt update && sudo apt install mysql-server
Red Hat Enterprise Linux
sudo yum install mysql-server
Ubuntu
sudo apt update && sudo apt install mysql-server
Configuration File Location
Complete MySQL Configuration Guide
- What is mysqld.cnf?
- Access the authentic 'mysqld.cnf' (my.cnf) configuration file from a fresh MySQL installation on Ubuntu 24.04 LTS (Noble Numbat). This is the exact default configuration that ships with the official MySQL package, essential for database recovery, performance tuning, and understanding baseline settings.
- Technical Details
- Located at '/etc/mysql/mysql.conf.d/mysqld.cnf', this 35-line file controls InnoDB buffer pool, query cache, connection limits, binary logging, and replication settings. Powers millions of databases worldwide, from small applications to enterprise data warehouses processing terabytes daily.
- Common Configuration Question
- How do you configure MySQL for optimal performance, security, and high availability on Ubuntu 24.04?
- Why Use This Configuration?
- This factory-default configuration includes memory optimization, security hardening, and performance tuning parameters. Critical for database administrators, backend developers, and DevOps engineers managing production MySQL deployments.
Frequently Asked Questions
When should I use this mysqld.cnf file?
Use this original configuration file when you need to restore MySQL to its default state after misconfiguration, during fresh installations, or as a baseline for customization. It's particularly useful for troubleshooting when your current config isn't working properly.
How do I restore MySQL to default settings?
Download this file and replace your current configuration at /etc/mysql/mysql.conf.d/mysqld.cnf. Make sure to backup your existing configuration first, then restart the MySQL service to apply the changes.
Is this mysqld.cnf file secure for production use?
This is the factory-default configuration that ships with MySQL on Ubuntu 24.04 LTS (Noble Numbat). While it provides a secure baseline, you should review and customize security settings based on your specific production requirements and compliance needs.
What's the difference between this and other OS versions?
This configuration is specifically from Ubuntu 24.04 LTS (Noble Numbat). Different operating systems and versions may have slightly different default settings, security patches, or feature availability. Check the compatibility section above for other OS versions.
Can I use this configuration file for MySQL troubleshooting?
Yes, this original configuration is excellent for troubleshooting. Compare it with your current settings to identify modifications that might be causing issues, or temporarily replace your config with this one to isolate problems.
