通过whereis查找phpMyAdmin安装目录
[root@localhost ～]# whereis phpMyAdmin phpMyAdmin: /etc/phpMyAdmin /usr/share/phpMyAdmin
在这两个目录中找到config.inc.php文件，发现在/etc/phpMyAdmin目录中
在开发中有3台数据库服务器需要访问和管理，用客户端切换太过麻烦，直接用phpmyadmin来解决问题
修改根目录/etc/phpMyAdmin中的config.inc.php配置
$i = 0;
/*
* 服务器A
*/
$i++;
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['host'] = '127.0.0.1';
$cfg['Servers'][$i]['port'] = '3307';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = false;
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '123456';
$cfg['Servers'][$i]['bs_garbage_threshold'] = 50;
$cfg['Servers'][$i]['bs_repository_threshold'] = '32M';
$cfg['Servers'][$i]['bs_temp_blob_timeout'] = 600;
$cfg['Servers'][$i]['bs_temp_log_threshold'] = '32M';
/*
* 服务器B
*/
$i++;
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['host'] = '127.0.0.1';
$cfg['Servers'][$i]['port'] = '3308';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = false;
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = ‘123456';
$cfg['Servers'][$i]['bs_garbage_threshold'] = 50;
$cfg['Servers'][$i]['bs_repository_threshold'] = '32M';
$cfg['Servers'][$i]['bs_temp_blob_timeout'] = 600;
$cfg['Servers'][$i]['bs_temp_log_threshold'] = '32M';
/*
* 服务器C
*/
$i++;
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['host'] = '127.0.0.1';
$cfg['Servers'][$i]['port'] = '3306';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = false;
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '123456';
$cfg['Servers'][$i]['bs_garbage_threshold'] = 50;
$cfg['Servers'][$i]['bs_repository_threshold'] = '32M';
$cfg['Servers'][$i]['bs_temp_blob_timeout'] = 600;
$cfg['Servers'][$i]['bs_temp_log_threshold'] = '32M';
保存，打开phpmyadmin,在首页就可以看到服务器列表了