![]() "Protecting MySQL Passwords With the sha256_password Plugin" For background on the history and future of MySQL authentication plugins, I found these MySQL Server Team blog posts helpful: The plugin specified gets written to the "plugin" field of the er table. The second example above contains an optional WITH clause to specify an authentication plugin. Two examples (adapted from their answers and the ALTER USER documentation for MySQL 5.7): : ALTER USER BY '' ![]() If I still had to operate a MySQL = 5.7.6. The question did ask if a single command could be used for both MySQL 5.6 and 5.7, but given that the ALTER USER syntax implemented by MySQL >= 5.7.6 offers a security enhancement, I would use the newer syntax when it is available. The MySQL 5.7.6 (, Milestone 16) release notes linked by question say "ALTER USER is now the preferred statement for assigning passwords." (This is likely due to the passage of time - the question and answer were both posted in 2015.) Then you can test: $ mysql -u root no MySQL authority, but based on MySQL's current 5.7 documentation, the suggestions in the currently accepted and most upvoted answer strike me as inadvisable. Just stopping it the normal way does not work. Important: before you (re)start mysqld, you need to kill the current process. If it is running, then start mysql and change the password $ mysql -u root $ sudo /usr/sbin/mysqld -skip-grant-tables -skip-networking &Ĭheck that the daemon mysqld is running: $ ps aux | grep mysqld ![]() So, you must use these modified instructions: $ sudo systemctl stop mysql The two key points are : the function password() is removed in mysqld 8.0+ and, for some reason, the unix socket for mysqld is not created with the -skip-grant-tables options. It's for MariaDB, but it's the same if don't use MariaDB. See Authentication from MariaDB 10.4 for an overview of authentication changes in MariaDB 10.4.On Ubuntu 19.10 with mysqld version 8.0.19, none of the above worked for me. If you attempt to run SET PASSWORD on an account that authenticates with one of these authentication plugins that doesn't store a password in the mysql.global_priv table, then MariaDB Server will raise a warning like the following: SET PASSWORD is ignored for users authenticating via unix_socket plugin These authentication plugins rely on other methods to authenticate the user. The unix_socket, named_pipe, gssapi, and pam authentication plugins do not store passwords in the mysql.global_priv table. The authentication plugin hashes the password with a method that is compatible with that specific authentication plugin. If you run SET PASSWORD on an account that authenticates with one of these authentication plugins that stores passwords in the mysql.global_priv table, then the PASSWORD() function is evaluated by the specific authentication plugin used by the account. The ed25519, mysql_native_password, and mysql_old_password authentication plugins store passwords in the mysql.global_priv table. In MariaDB 10.4 and later, SET PASSWORD (with or without PASSWORD()) works for accounts authenticated via any authentication plugin that supports passwords stored in the mysql.global_priv table. The argument to PASSWORD() and the password given to MariaDB clients can be of arbitrary length. er table (or view in MariaDB-10.4 onwards) entry. Given in format, where user_name and host_name areĮxactly as they are listed in the User and Host columns of the Privilege for the mysql database can do this. With a FOR clause, this statement sets the password for a specificĪccount on the current server host. Any client that has connected to the server using a non-anonymousĪccount can change the password for that account. With no FOR clause, this statement sets the password for the current OLD_PASSWORD() should only be used if your MariaDB/MySQL clients are very old (< 4.0.0). ![]() Should be the already-encrypted password value as returned by Password is specified without using either function, the password If the password is specified using the PASSWORD() or OLD_PASSWORD()įunction, the literal text of the password should be given. The SET PASSWORD statement assigns a password to an existing MariaDB user
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