Check mysql hostname ubuntu
Last updated on: 2020-10-09 Show Authored by: Jered Heeschen The article,, covered a basic MySQL® server setup on the Ubuntu® operating system. It described how to set the root password, create a database, and add a user for the database. This artcile examines MySQL congfiguration in a little more detail so you can adjust its configuration and be ready in case something goes wrong. Find the configuration filesBy default, you can find the MySQL® configuration files in:
If they’re not there, however, you can use
The first part of the lengthy response describes the options you can send to the server when you launch it. The second part displays the configuration set during the server compilation. Near the start of the output, find a couple of lines that look similar to the following example:
The server examines that list until it finds a configuration file. my.cnf configuration fileOpen and review the /etc/mysql/my.cnf file. Comment lines, starting with #, document the use of the different settings. They show details about the location of log files, database files, and other details. Config groupsThe configuration file contains lines with a single word in square brackets, like [client] or [mysqld]. Those sections are configuration groups. They make important configuration elements more visible to the programs that read the configuration file. The server configuration section is, technically, a collection of tools. That includes the server ( The client configuration section controls the Log filesLog files are the best place to start troubleshooting any program. By default, MySQL stores its log files in the following directory:
You might need to use If you don’t find the
MySQL® logs in the default directory, check the MySQL configuration. View the my.cnf file and look for a
If you don’t see a line like that, create one in the mysqld section so MySQL® can use its own error log. Use the location in the example, creating the /var/log/mysql directory if it doesn’t already exist. Then, restart MySQL to make the change. Make sure the user can write to the chosen log directory
by controlling the Network settingsThere might be a “port” setting under both the client and server configuration sections. The port under the server section controls what port the server listens to. The default port is The port in the client section tells the client what port to connect to by default. You generally want both port settings to match. If you are using the default settings, you won’t see the port entries in the configuration file. If you want to change the port, add the following lines in the appropriate categories:
The other network setting to look for is the bind-address value. That usually gets set to the address for localhost, 127.0.0.1. By binding to localhost, the server ensures no one can connect to it from outside the local computer. If you’re running your MySQL server on a different computer from your application, you should bind to a remotely-accessible address instead of the localhost. Change the bind-address setting to match your public IP address. For security reasons, you should use a backend IP address on a network. If you don’t see a bind-address entry, you should put one into the mysqld category to help control access to the server:
Remember to account for the client’s hostname when you set up your database users and to provide firewall access if you’re running mysqld and mysqld_safeBehind the scenes, there are two versions of the MySQL server, Both By default, the MySQL service launches mysqladminThe BackupsYou have the following options to backup your databases, apart from the usual back up the whole computer approach. The main two options are to copy the database files or use File copyBy default, MySQL creates a directory for each database in its data directory, /var/lib/mysql. After you find the data directory, wait a moment before making a copy of it. When the database server is active, it writes new values to tables. Don’t interrupt this processes to avoid potentially corrupting your backup. To ensure that you copied the database files cleanly, you should shut the MySQL server down entirely before the copy. You can lock the database as read-only for the duration of the copy. When you finish, release the lock. That way, your applications can still read data while you’re backing up files. Lock the databases to read-only by running the following command from the command line:
Run the following command to unlock the database when you’re done:
The MySQL client option, If you’re
writing these commands in a script, you can put the password in quotes right after
Make sure you set the permissions on that file to restrict read access for password-security reasons. mysqldumpAnother approach to backing up your database is to use the The statements generated by
This command tells Restore from mysqldumpRestoring a
Also, note that the By default, the SQL statements generated add to existing database tables and not overwrite them. If you’re restoring a backup over an existing database, you should drop the database tables first, or drop and recreate the database
itself. You can change that behavior by using the Database engineThe database engine is the process that works behind the scenes, writing to and reading data from files. You only need to know about this if you want to run an application that’s been optimized for a particular database engine. Applications that need tables create them on-demand and create the engine type automatically. To see the engine your database’s tables use, you can run the following command in the MySQL shell, changing demodb to the name of your database.:
Choose an engineIdeally, you won’t need to choose an engine. If you’re not very familiar with MySQL, allow the application to choose one by default. If you’re writing the application, use the default engine until you’re more comfortable with your options. Follow your database administrator’s (DBA) instructions, if you have one. The two database engines used most often with MySQL are MyISAMBecause InnoDBNOTE: A DBA can help you achieve the best
If your application requires InnoDB and you’re using MySQL 5.1 or earlier, there might not be any settings already in the my.cnf configuration file. That can be a problem if you’re running on a server that doesn’t have much memory. The following settings can get you started with InnoDB on a shared server with 256 megs of RAM:
Add those to the [mysqld] section of the configuration file. Again, those are only rough guides. They can get you started but they are not optimized. Consult with your DBA or experiment with incremental changes over time to improve performance. Related articles
How do I find MySQL host name Ubuntu?To display MySQL host via SQL command, use system variable “hostname”. Or you can use “show variables” command to show MySQL host via SQL command.
How do I find MySQL hostname?By default your MySQL host is localhost. You can find it in Hosting → Manage → MySQL databases section: If you are setting up a Remote MySQL connection, the host will be different and you will need to check it in the hPanel.
How do I find MySQL host and port?Another way to find out the port which MySQL Server is using on Windows is , Go to my. ini file that is MySQL configuration file and you can check the port. To find the my. ini file for MySQL Server, you can go to services and then go to properties.
How do I find MySQL database address?You can easily locate your MySQL databases details by opening your cPanel account and selecting MySQL® Databases section: Once there just scroll down to your desired database and the details will be shown right under Database and Privileged Users sections: For database host you will need to use localhost.
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