In Google Api Console
I have successfully created an instance using 'Click to Deploy' LAMP.
After Creation, the mysql root pwd was displayed for some moment in the API console, which I forgot to note it down and it is no more available in the API console.
Any idea on how to retrieve this mysql root pwd or to reset it again?
First log on to your system as the user that the mysqld server runs as. Locate the .pid file that contains the server's process ID. The exact location and name of this file depend on your distribution, host name, and configuration. Common locations are /var/lib/mysql/, /var/run/mysqld/, and /usr/local/mysql/data/.
Then send a kill command to the mysql process using the following command using the path name of your .pid file instead:
shell> kill cat /mysql-data-directory/host_name.pid
Create a text file containing the following statements replacing the password with your new one:
UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;
Write the UPDATE and FLUSH statements each on a single line.
Start the MySQL server with the special --init-file option:
shell> mysqld_safe --init-file=/home/me/mysql-init &
After the server has started successfully, delete /home/me/mysql-init.You should now be able to connect to the MySQL server as root using the new password. Stop the server and restart it normally.
For your reference the link to the MySQL documentation on this topic can be found here:
https://dev.mysql.com/doc/refman/5.0/en/resetting-permissions.html
Related
So I am stuck with this error when trying to connect my node.js application with MySQL.
It won't let me connect to MySQL from localhost, not a single command is working.
The MySql workbench also says the same
I can't use any database commands since it's not letting me access mysql. Gone through almost all possible solutions on the internet none of them worked. Please help me out here even an explanation for this would help if not the solution.
In order to access you must do the following steps :
1. Run the terminate with user permission.
2. Access the path where you have mysql installed.
3. Put the following sentence.
mysql.exe -u root -ppasw
-u : It is the user.
-p : the password but next to the p without space.
If it does not work try this in windows cmd
To restore to a single concrete database.
mysqlbinlog -database='yourFile.00004'
Explanation : The Binary log.
It has replaced the old update file.
Its mission is to update the DBs during a recovery operation.
Replication masters are used as a reminder of the statements to be sent to the slave servers.
If the name is not specified, the host is chosen.
Performance drop of 1%.
Active bins must not be opened during execution.
If you put extension to the file, it is ignored.
A new BIN_LOG file is created when :
The server is restarted
A Flush binary Logs is made
The size specified in MAX_BINLOG_SIZE is exceeded.
The files that are generated have an extension that are sequential numbers and represent the order (index) of their creation controlled by the name host_name.index.
To activate and decomment the log-bin my.ini directive. If log-bin=file is used, that name will be used to name the sequence of files.
To delete index files.
purge binary before date-time (in this format "yyyy-mm-dd hh:mm:ss" or now() or interval....)
purge binary logs to filename; deletes up to this file (this one not included)
reset master -> deletes all files
To disable the binary log, the session variable is used.
SQL_LOG_BIN : Up to version 5.6 this one is
EXECUTE DB : binlog-do-db=BD
DOES NOT RUN DB : binlog-ignore-db=BD
The commands are the continuation of the binary log.
create database
alter database
drop database
To see the content of a binary file (must not be open).
mysqlbinlog "file with its path".
To restore several binary files must be done in one step.
mysqlbinlog file1 file2 file3 file3 | mysql -u root -ppassword
To restore.
Overwrite the file >
Adds in the content respecting the content >>
To restore to a single concrete database.
mysqlbinlog -database='filenamebinlog.00004'
If the above does not work, do this first
Another option
ERROR 1130 (HY000): Host 'localhost' is not allowed to connect to this MySQL server
Cause :
mysql only has one root user, select MD5 after changing root password, then submit, reboot.
Login appears "The host 'localhost' is not allowed to connect to this MySQL server..."
Try the user table in another mysql library, overwrite, no, it is estimated that the version is different
Resolve :
Edit my.ini
Add a sentence to [mysqld]: skip-grant-tables
For example :
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-name-resolve
skip-grant-tables
The purpose is :
Bypass MySQL access control, anyone can log in to the MySQL database as an administrator in the console.
It should be noted that after changing the password, the MySQL server must be stopped and restarted to take effect.
Restart the mysql service!
This question already has answers here:
mysql root password forgotten
(7 answers)
Closed 11 months ago.
sudo mysqld_safe --skip-grant-tables;
mysql -u root
I have tested the above code, but was unable to enter the mysql.
still in the (base)~
Step 1: Log in as the MySQL User
When you boot into your Linux installation, make sure you’re logged in as the same user that normally runs MySQL. Although you can log in as root, once you start the MySQL server, make sure you start it with the --user=mysql option.
Otherwise, the system may create files owned by the root user, which can cause problems.
Step 2: Find the .pid File for the MySQL Service
The next step is to find the .pid file for the MySQL service.
Most systems store them in /var/lib/mysql/, /var/run/mysqld/, or /usr/local/mysql/data/ path. The filename usually starts with mysqld (or your system’s hostname) and ends with the .pid extension.
Step 3: Kill the mysqld Process
Before you create a new root password, stop the MySQL server. To kill the mysqld process, open a command line, and run the following:
kill cat /mysql-data-directory/host_name.pid
Replace mysql-data-directory/host_name.pid with the filename you found in the previous step. Ensure to specify the whole path to the file. Also, make sure to use the back-tick key (usually above the tab key) and not a single-quote mark in the beginning of the command.
Step 4: Create the Password File
Open your favorite text editor. In this example, we use vim:
sudo vim
Next, add the following line in the file:
ALTER USER 'root'#'localhost' IDENTIFIED BY 'NewPassword';
like this
create a password file for mysql
Bear in mind to include the single-quote marks and the semicolon. Replace NewPassword with the password you want to use. Finally, make sure to use a strong secure password, like these examples.
The command will work for the machine you’re currently using. If you’re connecting to a different system, replace localhost with the appropriate hostname.
Save the file to home/me/mysql-init.
Step 5: Restart the MySQL Server and Apply the New Password
To apply the changes to the password, restart the MySQL server by running the following command in the terminal:
mysqld --init-file=/home/me/mysql-init &
This launches MySQL, and apply the text-file password change. Depending on how you start your server, you may need to add other options (such as --defaults-file before the init command.)
Step 6: Cleaning Up
Lastly, log into your MySQL server using the root account, and verify the new password works. Then, delete the file you created in Step 4.
I've been searching everywhere, and I just can't wrap my head around the procedure that lies in setting a server up with some schemas to be used along a website.
I'm using workbench, but also the command line way.
I have two desktop computers. One that I want for normal use. And the second to be put up as a mySQL database, and just that. The need here is that the database PC, should allow some kind of remote access, so that my website may connect to it.
Installing MySQL Server in windows is easy, however first access have a small tricks. Start by downloading MySQL Server from here:
http://dev.mysql.com/downloads/mysql/
During the install don't forget to check the options to add MySQL to the System Path Variables.
After that you'll have to reset the root password. For some weird reason the root password doesn't work (at least on windows). Follow the instructions here:
http://dev.mysql.com/doc/refman/5.1/en/resetting-permissions.html
To make it shorter:
1) Type services.msc in start menu to open the service lists
2) Stop MySQL server
3) Create a txt file with the content below, placing the commands in 2 lines.
UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;
4) Execute this command on a DOS prompt
"C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld.exe" --defaults-file="C:\Program Files\MySQL\MySQL Server 5.5\\my.ini" --init-file=C:\\arquivo.txt --console
The init-file must point to the file created in item (3)
5) Delete the file created, restart MySQL service and logon normally with root user
To test your login, use a DOS prompt and type
mysql -h 127.0.0.1 -u root -pMyNewPass (no spaces between "P" and your password).
This question already has answers here:
How to reset mysql root password?
(8 answers)
Closed 6 years ago.
I have MySQL 5.6 installed using installer. I have forgotten my password. So I have followed some examples to reset the root pwd for root. The command I gave was this:
C:\Windows\system32>"C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe" --i
nit-file="c:\\new folder\mysql-init.txt" --explicit_defaults_for_timestamp=true
The command prompt silently returns without starting Mysql. I need to actually reset the password.
Please point out my mistake. Let me know If I am doing something wrong!!
Read this Reset mysql server password.
On Windows, use the following procedure to reset the password for all MySQL root accounts:
1. Log on to your system as Administrator.
2. Stop the MySQL server if it is running. For a server that is running as a Windows service, go to the Services manager: From the Start menu, select Control Panel, then Administrative Tools, then Services. Find the MySQL service in the list and stop it.
If your server is not running as a service, you may need to use the Task Manager to force it to stop.
3. Create a text file containing the following statements. Replace the password with the password that you want to use.
UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;
Write the UPDATE and FLUSH statements each on a single line. The UPDATE statement resets the password for all root accounts, and the FLUSH statement tells the server to reload the grant tables into memory so that it notices the password change.
4. Save the file. For this example, the file will be named C:\mysql-init.txt.
5. Open a console window to get to the command prompt: From the Start menu, select Run, then enter cmd as the command to be run.
6. Start the MySQL server with the special --init-file option (notice that the backslash in the option value is doubled):
C:\> C:\mysql\bin\mysqld --init-file=C:\\mysql-init.txt
If you installed MySQL to a location other than C:\mysql, adjust the command accordingly.
The server executes the contents of the file named by the --init-file option at startup, changing each root account password.
You can also add the --console option to the command if you want server output to appear in the console window rather than in a log file.
If you installed MySQL using the MySQL Installation Wizard, you may need to specify a --defaults-file option:
C:\> "C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe"
--defaults-file="C:\\Program Files\\MySQL\\MySQL Server 5.6\\my.ini"
--init-file=C:\\mysql-init.txt
The appropriate --defaults-file setting can be found using the Services Manager: From the Start menu, select Control Panel, then Administrative Tools, then Services. Find the MySQL service in the list, right-click it, and choose the Properties option. The Path to executable field contains the --defaults-file setting.
7. After the server has started successfully, delete C:\mysql-init.txt.
You should now be able to connect to the MySQL server as root using the new password. Stop
the MySQL server, then restart it in normal mode again. If you run the server as a
service, start it from the Windows Services window. If you start the server manually,
use whatever command you normally use.
As I have commented the procedure did not complete successfully. I have tried numerous combinations and remembered the password.
I lost my MySQL username and password. How do I retrieve it?
Stop the MySQL process.
Start the MySQL process with the --skip-grant-tables option.
Start the MySQL console client with the -u root option.
List all the users;
SELECT * FROM mysql.user;
Reset password;
UPDATE mysql.user SET Password=PASSWORD('[password]') WHERE User='[username]';
But DO NOT FORGET to
Stop the MySQL process
Start the MySQL Process normally (i.e. without the --skip-grant-tables option)
when you are finished. Otherwise, your database's security could be compromised.
Unfortunately your user password is irretrievable. It has been hashed with a one way hash which if you don't know is irreversible. I recommend go with Xenph Yan above and just create an new one.
You can also use the following procedure from the manual for resetting the password for any MySQL root accounts on Windows:
Log on to your system as Administrator.
Stop the MySQL server if it is running. For a server that is running as a Windows service, go to
the Services manager:
Start Menu -> Control Panel -> Administrative Tools -> Services
Then find the MySQL service in the list, and stop it. If your server is
not running as a service, you may need to use the Task Manager to force it to stop.
Create a text file and place the following statements in it. Replace the password with the password that you want to use.
UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
FLUSH PRIVILEGES;
The UPDATE and FLUSH statements each must be written on a single line. The UPDATE statement resets the password for all existing root accounts, and the FLUSH statement tells the server to reload the grant tables into memory.
Save the file. For this example, the file will be named C:\mysql-init.txt.
Open a console window to get to the command prompt:
Start Menu -> Run -> cmd
Start the MySQL server with the special --init-file option:
C:\> C:\mysql\bin\mysqld-nt --init-file = C:\mysql-init.txt
If you installed MySQL to a location other than C:\mysql, adjust the command accordingly.
The server executes the contents of the file named by the --init-file option at startup, changing each root account password.
You can also add the --console option to the command if you want server output to appear in the console window rather than in a log file.
If you installed MySQL using the MySQL Installation Wizard, you may need to specify a --defaults-file option:
C:\> "C:\Program Files\MySQL\MySQL Server 5.0\bin\mysqld-nt.exe" --defaults-file="C:\Program Files\MySQL\MySQL Server 5.0\my.ini" --init-file=C:\mysql-init.txt
The appropriate --defaults-file setting can be found using the Services Manager:
Start Menu -> Control Panel -> Administrative Tools -> Services
Find the MySQL service in the list, right-click on it, and choose the Properties option. The Path to executable field contains the --defaults-file setting.
After the server has started successfully, delete C:\mysql-init.txt.
Stop the MySQL server, then restart it in normal mode again. If you run the server as a service, start it from the Windows Services window. If you start the server manually, use whatever command you normally use.
You should now be able to connect to MySQL as root using the new password.
An improvement to the most useful answer here:
1] No need to restart the mysql server
2] Security concern for a MySQL server connected to a network
There is no need to restart the MySQL server.
use FLUSH PRIVILEGES; after the update mysql.user statement for password change.
The FLUSH statement tells the server to reload the grant tables into memory so that it notices the password change.
The --skip-grant-options enables anyone to connect without a password and with all privileges. Because this is insecure, you might want to
use --skip-grant-tables in conjunction with --skip-networking to prevent remote clients from connecting.
from: reference: resetting-permissions-generic
Do it without down time
Run following command in the Terminal to connect to the DBMS (you need root access):
sudo mysql -u root -p;
run update password of the target user (for my example username is mousavi and it's password must be 123456):
UPDATE mysql.user SET authentication_string=PASSWORD('123456') WHERE user='mousavi';
at this point you need to do a flush to apply changes:
FLUSH PRIVILEGES;
Done! You did it without any stop or restart mysql service.
While you can't directly recover a MySQL password without bruteforcing, there might be another way - if you've used MySQL Workbench to connect to the database, and have saved the credentials to the "vault", you're golden.
On Windows, the credentials are stored in %APPDATA%\MySQL\Workbench\workbench_user_data.dat - encrypted with CryptProtectData (without any additional entropy). Decrypting is easy peasy:
std::vector<unsigned char> decrypt(BYTE *input, size_t length) {
DATA_BLOB inblob { length, input };
DATA_BLOB outblob;
if (!CryptUnprotectData(&inblob, NULL, NULL, NULL, NULL, CRYPTPROTECT_UI_FORBIDDEN, &outblob)) {
throw std::runtime_error("Couldn't decrypt");
}
std::vector<unsigned char> output(length);
memcpy(&output[0], outblob.pbData, outblob.cbData);
return output;
}
Or you can check out this DonationCoder thread for source + executable of a quick-and-dirty implementation.
If you have root access to the server where mysql is running you should stop the mysql server using this command
sudo service mysql stop
Now start mysql using this command
sudo /usr/sbin/mysqld --skip-grant-tables --skip-networking &
Now you can login to mysql using
sudo mysql
FLUSH PRIVILEGES;
SET PASSWORD FOR 'root'#'localhost' = PASSWORD('MyNewPass');
Full instructions can be found here http://www.techmatterz.com/recover-mysql-root-password/
Login MySql from windows cmd using existing user:
mysql -u username -p
Enter password:****
Then run the following command:
mysql> SELECT * FROM mysql.user;
After that copy encrypted md5 password for corresponding user and there are several online password decrypted application available in web. Using this decrypt password and use this for login in next time.
or update user password using flowing command:
mysql> UPDATE mysql.user SET Password=PASSWORD('[password]') WHERE User='[username]';
Then login using the new password and user.
After MySQL 5.7.6 and MariaDB 10.1.20 (currently in 2022) you can:
Update a mysql user password having access to root user
ALTER USER 'some_user_name'#'localhost' IDENTIFIED BY 'a_super_secure_password';
Update mysql root user
ALTER USER 'root'#'localhost' IDENTIFIED WITH mysql_native_password by 'mynewpassword';
List all users
select user from mysql.user;
IF you happen to have ODBC set up, you can get the password from the ODBC config file. This is in /etc/odbc.ini for Linux and in the Software/ODBC folder in the registry in Windows (there are several - it may take some hunting)
Save the file. For this example, the file will be named C:\mysql-init.txt.
it asking administrative permisions for saving the file
Although a strict, logical, computer science'ish interpretation of the op's question would be to require both "How do I retrieve my MySQL username" and "password" - I thought It might be useful to someone to also address the OR interpretation. In other words ...
1) How do I retrieve my MySQL username?
OR
2) password
This latter condition seems to have been amply addressed already so I won't bother with it. The following is a solution for the case "How do i retreive my MySQL username" alone. HIH.
To find your mysql username run the following commands from the mysql shell ...
SELECT User FROM mysql.user;
it will print a table of all mysql users.