Default password of mysql in ubuntu server 16 04

Question

I have installed ubuntu 16 04 server  Mysql server was installed by default in it  When I am trying to access the mysql with mysql -u root -p  I am unable to log in to mysql because I dont have the password  Is there any default password   I have also tried with --skip-grant-tables  even this does not work  Even trying to log in with just mysql -u root is a failure

User · Answer

Although this is an old question  there are several of us still struggle to find an answer  At least I did  Please don t follow all the lengthy solutions  You could simply login to your mysql as root without providing any password  provided it is a fresh installation or you haven t changed the password since your installation  by adding sudo before your mysql command   sudo mysql -uroot -p mysql gt   This is because mysql changed the security model in one of the latest versions   Hope this helps

User · Answer

The only option that worked for me is the one described in this link  In summary  in case the website goes down   it says   To install MySQL   sudo apt update sudo apt install mysql-server   On the next prompt  you will be asked to set a password for the MySQL root user   Once you do that the script will also ask you to remove the anonymous user  restrict root user access to the local machine and remove the test database  You should answer    Y     yes  to all questions   sudo mysql secure installation   Then  sudo mysql  ALTER USER  root   localhost  IDENTIFIED WITH mysql native password BY  very strong password   FLUSH PRIVILEGES   After that you can exit  exit  Now you can easily login with  Remember to type your very strong password   mysql -u root -p   type the password now   This was the only option that worked for me after many hours trying the options above

User · Answer

I think another place to look is  var lib   If you go there you can see three mysql folders with  interesting  permissions   user   group  mysql  mysql   Here is what I did to solve my problem with root password   after running  sudo apt-get purge mysql  sudo rm -rf  etc mysql   I also ran the following  instead of my username put yours    cd  var lib sudo chown --from mysql  lt my username gt  mysql  -R sudo rm -rf mysql    And then   sudo apt-get install mysql-server   which prompted me to select a new root password  I hope it helps

User · Answer

Note that in Ubuntu systems running MySQL 5 7  and later versions   the root MySQL user is set to authenticate using the auth socket plugin by default rather than with a password  you will need to switch its authentication method from auth socket to mysql native password   as  BeNiza said  they changed the security model  I did following steps and it works for mysql 5 7 27 on ubuntu 18 04  sudo apt install mysql-server  The MySQL database software is now installed  but its configuration is not yet complete   To secure the installation  MySQL comes with a script that will ask whether we want to modify some insecure defaults  Initiate the script by typing   sudo mysql secure installation  you should press Y and hit the ENTER key at each prompt      This will cause issues if you use a weak password   You can simply login to your mysql as root without providing any password by adding sudo before your mysql command   sudo mysql  mysql gt  ALTER USER  root   localhost  IDENTIFIED WITH mysql native password BY  your-password    If you set a weak password you would see the following error      ERROR 1819  HY000   Your password does not satisfy the current policy requirements   mysql gt  FLUSH PRIVILEGES   mysql gt  exit     Note  After configuring your root MySQL user to authenticate with a password  you   ll no longer be able to access MySQL with the sudo mysql command used previously  Instead  you must run the following    mysql -u root -p   After entering the password you just set  you will see the MySQL prompt

User · Answer

this worked for me on Ubuntu 20 04 with mysql 8  the weird hashing thing is because the native PASSWORD   function was removed in mysql 8  or earlier   UPDATE mysql user SET   plugin    mysql native password    Host         authentication string   CONCAT      UPPER SHA1 UNHEX SHA1  insert password here        WHERE User    root   FLUSH PRIVILEGES

User · Answer

You can simply reset the root password by running the server with --skip-grant-tables and logging in without a password by running the following as root or with sudo   service mysql stop mysqld safe --skip-grant-tables  amp  mysql -u root  mysql gt  use mysql  mysql gt  update user set authentication string PASSWORD  YOUR-NEW-ROOT-PASSWORD   where User  root   mysql gt  flush privileges  mysql gt  quit    service mysql stop   service mysql start   mysql -u root -p

User · Answer

Mysql by default has root user s authentication plugin as auth socket  which requires the system user name and db user name to be the same    Specifically  log in as root or sudo -i and just type mysql and you will be logged in as mysql root  you can then create other operating users   If you do not have a root on host  I guess you should not be allowed to login to mysql as root

User · Answer

As of Ubuntu 20 04  using the default MariaDB 10 3 package  these were the necessary steps  remix of earlier answers from this thread     Log in to mysql as root  sudo mysql -u root Update the password    USE mysql  UPDATE user set authentication string PASSWORD  YOUR-NEW-ROOT-PASSWORD   where User  root   UPDATE user set plugin  mysql native password  where User  root   FLUSH privileges  QUIT    sudo service mysql restart   After this  you can connect to your local mysql with your new password  mysql -u root -p

User · Answer

As of Ubuntu 20 04 with MySql 8 0   the function PASSWORD do not exists any more  hence the right way is   login to mysql with sudo mysql -u root  change the password     USE mysql  UPDATE user set authentication string NULL where User  root   FLUSH privileges  ALTER USER  root   localhost  IDENTIFIED WITH caching sha2 password BY  My-N7w And 5ecure-P s5w0rd   FLUSH privileges  QUIT   now you should be able to login with mysql -u root -p  or to phpMyAdmin with username root  and your chosen password  P S  You can also login with user debian-sys-maint  the password is in the file  etc mysql debian cnf

User · Answer

In latest version  mySQL uses auth socket  so to login you ve to know about the auto generated user credentials  or if you download binary version  while installation process  you can choose lagacy password    To install SQL in linux debian versions  sudo apt install mysql-server   to know about the password  sudo cat  etc mysql debian cnf   Now login  mysql -u debian-sys-maint -p   use the password from debian cnf  How to see available user records   USE mysql SELECT User  Host  plugin FROM mysql user    Now you can create a new user  Use the below commands   use mysql  CREATE USER  username   localhost  IDENTIFIED BY  password   GRANT ALL ON     TO  username   localhost   flush privileges    To list the grants for the particular mysql user  SHOW GRANTS FOR  username   localhost     How to revoke all the grants for the particular mysql user  REVOKE ALL PRIVILEGES  GRANT OPTION FROM  username   localhost     To delete remove particular user from user account list  DROP USER  username   localhost     For more commands     man 1 mysql   Please don t reset the password for root  instead create a new user and grant rights  This is the best practice

User · Answer

If you install your mysql with apt install mysql  you can just login to your mysql with sudo mysql

User · Answer

This is what you are looking for  sudo mysql --defaults-file  etc mysql debian cnf MySql on Debian-base Linux usually use a configuration file with the credentials

User · Answer

the first you should stop mysql use this command sudo mysqld safe --skip-grant-tables --skip-networking  amp  and then input mysql -u root try this way I have been solved my problem with this method

User · Answer

Simply run sudo dpkg-reconfigure mysql-server-5 7  You can find the version you have installed by running dpkg --get-selections   grep mysql-server

User · Answer

I had a fresh installation of mysql-server on Ubuntu 18 10 and couldn t login with default password  Then only I got to know that by default root user is authenticated using auth socket  So as in the answer when the plugin changed to mysql native password  we can use mysql default password     sudo apt install mysql-server   sudo cat  etc mysql debian cnf   You can find the following lines in there  user       debian-sys-maint password   password for the user   Then     mysql -u debian-sys-maint -p Enter password     type the password from debian cnf  mysql gt  USE mysql mysql gt  SELECT User  Host  plugin FROM mysql user    ------------------ ----------- -----------------------    User               Host        plugin                   ------------------ ----------- -----------------------    root               localhost   auth socket               mysql session      localhost   mysql native password     mysql sys          localhost   mysql native password     debian-sys-maint   localhost   mysql native password    ------------------ ----------- -----------------------  4 rows in set  0 00 sec   mysql gt  UPDATE user SET plugin  mysql native password  WHERE User  root   mysql gt  COMMIT     Either   mysql gt  ALTER USER  root   localhost  IDENTIFIED BY  new password     Or      For MySQL 5 7   mysql gt UPDATE mysql user SET authentication string PASSWORD  new password   where user  root     --Update--  Sometimes you will need to restart your mysql server    sudo service mysql restart   or  sudo systemctl restart mysql

User · Answer

Early versions allowed root password to be blank but  in Newer versions set the root password is the admin main  user login password during the installation

[mysql] Default password of mysql in ubuntu server 16.04

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