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Cannot connect to MySQL


Cannot connect to MySQL

By : Abdallah Samman
Date : November 18 2020, 01:01 AM
should help you out I am trying to connect to MySQL server (hosted by godaddy) from php using PDO. , Follow this format:
code :
$user = "username";
$pass = "password";
$host = "localhost";
$db = "yourDbname";
$dns = "mysql:host=" . $host . ";dbname=" . $db;
$dbh = new PDO($dns, $user, $pass);
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$theid = 10;
$statement = $dbh->prepare('SELECT * FROM yourtable WHERE id = ? and name = ?');
$statement->execute(array($theid,'baronth'));
try {
all the code that you wan't to check
}
catch (PDOException $e) {
    echo $e->getMessage();
}


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Could not connect: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

Could not connect: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)


By : João Pacheco
Date : March 29 2020, 07:55 AM
With these it helps Q: Does your my.conf still says "/var/lib/mysql/mysql.sock"?
Q: Does the directory "/var/lib/mysql" exist?
code :
cd /var/lib
mkdir mysql
touch mysql/mysql.sock
chown -R mysql:mysql mysql
Warning: mysql_connect() [function.mysql-connect]: Can't connect to MySQL server on

Warning: mysql_connect() [function.mysql-connect]: Can't connect to MySQL server on


By : Khalid Kagzi
Date : March 29 2020, 07:55 AM
help you fix your problem You are specifying wrong parameters to mysql_connect:
code :
mysql_connect('IP', 'DATABASE PASSWORD', 'PASSWORD', 'DATABSE NAME')
mysql_connect('server address', 'user name', 'password')
trying to connect to mysql and getting error :is not allowed to connect to this MySQL serverConnection closed by foreign

trying to connect to mysql and getting error :is not allowed to connect to this MySQL serverConnection closed by foreign


By : Андрей Миронов
Date : March 29 2020, 07:55 AM
this will help You cannot connect to the remote MySQL if you are not white listed in the MySQL user privileges table.
code :
$ mysql -h 123.238.18.47 -u rakman -p
Enter password:
ERROR 1130 (HY000): Host '199.255.209.168' is not allowed to connect to this MySQL server
$ mysql -h 123.238.18.47 -u rakman -p
Enter password:
Welcome to the MySQL monitor.
Rails application unable to connect to mysql, Can't connect to local MySQL server through socket '/var/run/mysqld/mysql.

Rails application unable to connect to mysql, Can't connect to local MySQL server through socket '/var/run/mysqld/mysql.


By : Nguyen Dinh Khanh
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You can alternatively remove the socket specification from the production environment in database.yml
code :
production:
  # socket: /var/run/mysqld/mysql.sock
[django+mysql]MySQLdb.connect works well, but cannot connect mysql via settings.py

[django+mysql]MySQLdb.connect works well, but cannot connect mysql via settings.py


By : David Eriksson
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further The settings for the DB should be HOST and PORT, not DATABASE_HOST ... so try this:
code :
DATABASES = {
    'default':{
        'ENGINE' : 'django.db.backends.mysql',
        'NAME' : 'tasty',
        'USER' : 'root',
        'PASSWORD' : 'mycode',
        'HOST' : '127.0.0.1',
        'PORT' : '3306',
    },
}
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