問題無法登錄到MySQL服務器

Question

具有適用於Linux 5.6.12-0的XAMPP。 當我啟動Xammp時，它顯示以下內容：

Starting XAMPP for Linux 5.6.12-0...
XAMPP: Starting Apache...ok.
XAMPP: Starting MySQL...ok.
XAMPP: Starting ProFTPD...ok.

但是當您轉到http://127.0.0.1/phpmyadmin/時 ，它說：

 Cannot log in to the MySQL server
 Connection for controluser as defined in your configuration failed.

我的cinfig.inc.php：

<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * phpMyAdmin sample configuration, you can use it as base for
 * manual configuration. For easier setup you can use setup/
 *
 * All directives are explained in documentation in the doc/ folder
 * or at <http://docs.phpmyadmin.net/>.
 *
 * @package PhpMyAdmin
 */

/*
 * This is needed for cookie based authentication to encrypt password in
 * cookie
 */
$cfg['blowfish_secret'] = 'xampp'; /* YOU SHOULD CHANGE THIS FOR A MORE SECURE COOKIE AUTH! */

/*
 * Servers configuration
 */
$i = 0;

/*
 * First server
 */
$i++;
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'cookie';
$cfg['Servers'][$i]['user'] = 'brahim';
$cfg['Servers'][$i]['password'] = '';
/* Server parameters */
//$cfg['Servers'][$i]['host'] = 'localhost';
//$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = true;
$cfg['Servers'][$i]['AllowNoPassword'] = true;

/*
 * phpMyAdmin configuration storage settings.
 */

/* User used to manipulate with storage */
// $cfg['Servers'][$i]['controlhost'] = '';
// $cfg['Servers'][$i]['controlport'] = '';
$cfg['Servers'][$i]['controluser'] = 'pma';
$cfg['Servers'][$i]['controlpass'] = '';

/* Storage database and tables */
$cfg['Servers'][$i]['pmadb'] = 'phpmyadmin';
$cfg['Servers'][$i]['bookmarktable'] = 'pma__bookmark';
$cfg['Servers'][$i]['relation'] = 'pma__relation';
$cfg['Servers'][$i]['table_info'] = 'pma__table_info';
$cfg['Servers'][$i]['table_coords'] = 'pma__table_coords';
$cfg['Servers'][$i]['pdf_pages'] = 'pma__pdf_pages';
$cfg['Servers'][$i]['column_info'] = 'pma__column_info';
$cfg['Servers'][$i]['history'] = 'pma__history';
$cfg['Servers'][$i]['table_uiprefs'] = 'pma__table_uiprefs';
$cfg['Servers'][$i]['tracking'] = 'pma__tracking';
$cfg['Servers'][$i]['userconfig'] = 'pma__userconfig';
$cfg['Servers'][$i]['recent'] = 'pma__recent';
// $cfg['Servers'][$i]['favorite'] = 'pma__favorite';
// $cfg['Servers'][$i]['users'] = 'pma__users';
// $cfg['Servers'][$i]['usergroups'] = 'pma__usergroups';
// $cfg['Servers'][$i]['navigationhiding'] = 'pma__navigationhiding';
// $cfg['Servers'][$i]['savedsearches'] = 'pma__savedsearches';
// $cfg['Servers'][$i]['central_columns'] = 'pma__central_columns';
/* Contrib / Swekey authentication */
// $cfg['Servers'][$i]['auth_swekey_config'] = '/etc/swekey-pma.conf';

/*
 * End of servers configuration
 */

/*
 * Directories for saving/loading files from server
 */
$cfg['UploadDir'] = '';
$cfg['SaveDir'] = '';

/**
 * Whether to display icons or text or both icons and text in table row
 * action segment. Value can be either of 'icons', 'text' or 'both'.
 */
//$cfg['RowActionType'] = 'both';

/**
 * Defines whether a user should be displayed a "show all (records)"
 * button in browse mode or not.
 * default = false
 */
//$cfg['ShowAll'] = true;

/**
 * Number of rows displayed when browsing a result set. If the result
 * set contains more rows, "Previous" and "Next".
 * default = 30
 */
//$cfg['MaxRows'] = 50;

/**
 * disallow editing of binary fields
 * valid values are:
 *   false    allow editing
 *   'blob'   allow editing except for BLOB fields
 *   'noblob' disallow editing except for BLOB fields
 *   'all'    disallow editing
 * default = blob
 */
//$cfg['ProtectBinary'] = 'false';

/**
 * Default language to use, if not browser-defined or user-defined
 * (you find all languages in the locale folder)
 * uncomment the desired line:
 * default = 'en'
 */
//$cfg['DefaultLang'] = 'en';
//$cfg['DefaultLang'] = 'de';

/**
 * How many columns should be used for table display of a database?
 * (a value larger than 1 results in some information being hidden)
 * default = 1
 */
//$cfg['PropertiesNumColumns'] = 2;

/**
 * Set to true if you want DB-based query history.If false, this utilizes
 * JS-routines to display query history (lost by window close)
 *
 * This requires configuration storage enabled, see above.
 * default = false
 */
//$cfg['QueryHistoryDB'] = true;

/**
 * When using DB-based query history, how many entries should be kept?
 *
 * default = 25
 */
//$cfg['QueryHistoryMax'] = 100;

/**
 * Should error reporting be enabled for JavaScript errors
 *
 * default = 'ask'
 */
//$cfg['SendErrorReports'] = 'ask';

/*
 * You can find more configuration options in the documentation
 * in the doc/ folder or at <http://docs.phpmyadmin.net/>.
 */
?>

Answer 1

由於您使用的是XAMPP軟件包，因此應全部由該安裝程序進行配置，並且任何手動更改都可能與XAMPP軟件包完成的某些幕后操作相沖突。

話雖如此，有些事情在這里毫無意義。

您的auth_type為'cookie'，因此在登錄時系統會提示您輸入用戶名和密碼。這兩行$cfg['Servers'][$i]['user'] = 'brahim'; 和$cfg['Servers'][$i]['password'] = ''; 根本不使用，因此您可以安全地刪除它們。 這並沒有直接影響您的登錄能力，但是會導致混淆哪個密碼在哪里，我發現最好減少混淆的數量。

您的問題是controluser，行$cfg['Servers'][$i]['controluser'] = 'pma'; 和$cfg['Servers'][$i]['controlpass'] = ''; 將它們注釋掉（在每行的開頭加上// ），以暫時避開高級配置功能。 這應該允許您使用通常的MySQL用戶名和密碼登錄。

我在您提到的評論中看到您不知道密碼。 默認情況下，MySQL附帶用戶名'root'和空密碼。 試試看 如果它不起作用，則必須將其重置。 請參閱https://stackoverflow.com/a/18427124/2385479-至少在Windows上，提供了XAMPP提供的實用程序來重置密碼。 我找不到在Linux上找到它的任何引用，但請查看XAMPP安裝文件夾。 失敗的是， MySQL手冊提供了指導，或者在Stackoverflow上已經對此做了很多回答。 通用說明是停止mysqld，使用--skip-grant-tables重新啟動它，手動更改密碼，然后正常重啟mysqld －但是您應該檢查鏈接，因為大多數系統都有特定的說明。

此時，您可以照常使用phpMyAdmin或繼續還原配置存儲使用的高級功能。

無論如何，回到您的實際問題之后，一旦成功登錄，請檢查是否有pma用戶，以及是否只需更改密碼。 如果沒有，請使用phpMyAdmin文檔中的SQL語句創建一個： GRANT SELECT, INSERT, UPDATE, DELETE ON <pma_db>.* TO 'pma'@'localhost' IDENTIFIED BY 'pmapass'; 。 知道密碼后，編輯config.inc.php並將其插入“ controlpass”變量，取消注釋“ controlpass”和“ controluser”，然后重試。