MySQL is a powerful and popular database management system for Linux and Unix like operating systems. You need to install the following packages on Debian:
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- mysql-server – Install the latest stable MySQL database server binaries and system database setup on Debian.
- mysql-client – Install the latest stable MySQL database client binaries.
Installing MySQL server+client on Debian Linux
First, you need to type the following apt-get command or aptitude command to bring Debian to up to date state:
# aptitude update && aptitude upgrade
# apt-get update && apt-get upgrade
Open a terminal or login to the remote server using ssh client. Type the following apt-get command to install the MySQL:
# apt-get install mysql-server mysql-client
Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libxcb-render-util0-dev xulrunner-1.9.1 libxcb-render-util0 Use 'apt-get autoremove' to remove them. Selecting previously deselected package libnet-daemon-perl. (Reading database ... 159847 files and directories currently installed.) Unpacking libnet-daemon-perl (from .../libnet-daemon-perl_0.43-1_all.deb) ... Selecting previously deselected package libplrpc-perl. Unpacking libplrpc-perl (from .../libplrpc-perl_0.2020-2_all.deb) ... Selecting previously deselected package libdbi-perl. Unpacking libdbi-perl (from .../libdbi-perl_1.612-1_amd64.deb) ... Selecting previously deselected package libdbd-mysql-perl. Unpacking libdbd-mysql-perl (from .../libdbd-mysql-perl_4.016-1_amd64.deb) ... Selecting previously deselected package mysql-client-5.1. Unpacking mysql-client-5.1 (from .../mysql-client-5.1_5.1.49-3_amd64.deb) ... Selecting previously deselected package mysql-server-core-5.1. Unpacking mysql-server-core-5.1 (from .../mysql-server-core-5.1_5.1.49-3_amd64.deb) ... ... ,...
During installation you will be promoted to setup a password for mysql admin “root” user:
Warning: if you are not asked to input MySQL root user’s password during installation, type the following command to set/change MySQL root user’s password on Debian Linux:
mysqladmin -u root password NEWPASSWORDNameHere
How Do I Start / Stop / Restart MySQL Server?
MySql will start on boot time. You can also type the following commands as root user to start / stop / restart the server:
# /etc/init.d/mysql start
# /etc/init.d/mysql stop
# /etc/init.d/mysql restart
# /etc/init.d/mysql status
# service mysql start
# service mysql stop
# service mysql restart
# service mysql status
MySQL server configuration
The MySQL database server configuration file is located at /etc/mysql/my.cnf. Edit the file using a text editor such as vi, type:
# vi /etc/mysql/my.cnf
# # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options, # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html # This will be passed to all mysql clients # It has been reported that passwords should be enclosed with ticks/quotes # escpecially if they contain "#" chars... # Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] # # * Basic Settings # user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking # # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 127.0.0.1 # # * Fine Tuning # key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP #max_connections = 100 #table_cache = 64 #thread_concurrency = 10 # # * Query Cache Configuration # query_cache_limit = 1M query_cache_size = 16M # # * Logging and Replication # # Both location gets rotated by the cronjob. # Be aware that this log type is a performance killer. # As of 5.1 you can enable the log at runtime! #general_log_file = /var/log/mysql/mysql.log #general_log = 1 # # Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf. # # Here you can see queries with especially long duration #log_slow_queries = /var/log/mysql/mysql-slow.log #long_query_time = 2 #log-queries-not-using-indexes # # The following can be used as easy to replay backup logs or for replication. # note: if you are setting up a replication slave, see README.Debian about # other settings you may need to change. #server-id = 1 #log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M #binlog_do_db = include_database_name #binlog_ignore_db = include_database_name # # * InnoDB # # InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/. # Read the manual for more InnoDB related options. There are many! # # * Security Features # # Read the manual, too, if you want chroot! # chroot = /var/lib/mysql/ # # For generating SSL certificates I recommend the OpenSSL GUI "tinyca". # # ssl-ca=/etc/mysql/cacert.pem # ssl-cert=/etc/mysql/server-cert.pem # ssl-key=/etc/mysql/server-key.pem [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] #no-auto-rehash # faster start of mysql but no tab completition [isamchk] key_buffer = 16M # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf', otherwise they'll be ignored. # !includedir /etc/mysql/conf.d/
How do I connect to MySQL server?
Type the following command:
$ mysql -u root -p
Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 37 Server version: 5.1.49-3 (Debian) Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to modify and redistribute it under the GPL v2 license Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
- -u root: Login as admin root user.
- -p : Prompt for root user password.
- Man pages: apt-get(8)
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