Trying to get phpMyAdmin to talk to a remote mySQL server. The config is below and there is already a user set up in mySQL DB to be able to log in from the specified host that PMA sits on. Hosting is provided by Rackspace (Rightscale) and both cloud servers behind the same firewall.

[config.inc.php]

<?php

  $cfg['blowfish_secret'] = '';
  $i = 0;

  $i++;
  $cfg['Servers'][$i]['host']          = 'XX.XX.XX.XX';   // MySQL hostname or IP address
  $cfg['Servers'][$i]['port']          = '';                 // MySQL port - leave blank for default port
  $cfg['Servers'][$i]['socket']        = '';                 // Path to the socket - leave blank for default socket
  $cfg['Servers'][$i]['connect_type']  = 'tcp';              // How to connect to MySQL server ('tcp' or 'socket')
  $cfg['Servers'][$i]['extension']     = 'mysql';            // The php MySQL extension to use ('mysql' or 'mysqli')
  $cfg['Servers'][$i]['compress']      = FALSE;              // Use compressed protocol for the MySQL connection
                                                             // (requires PHP >= 4.3.0)
  $cfg['Servers'][$i]['controluser']   = '';                 // MySQL control user settings
                                                             // (this user must have read-only
  $cfg['Servers'][$i]['controlpass']   = '';                 // access to the "mysql/user"
                                                             // and "mysql/db" tables).
                                                             // The controluser is also
                                                             // used for all relational
                                                             // features (pmadb)
  $cfg['Servers'][$i]['auth_type']     = 'config';           // Authentication method (config, http or cookie based)?
  $cfg['Servers'][$i]['user']          = 'USERNAME';              // MySQL user
  $cfg['Servers'][$i]['password']      = 'PASSWORD';  // MySQL password (only needed
                                                             // with 'config' auth_type)
  $cfg['Servers'][$i]['only_db']       = '';                 // If set to a db-name, only
                                                             // this db is displayed in left frame
                                                             // It may also be an array of db-names, where sorting order is relevant.
  $cfg['Servers'][$i]['hide_db']       = '';                 // Database name to be hidden from listings
  $cfg['Servers'][$i]['verbose']       = '';                 // Verbose name for this host - leave blank to show the hostname

  $cfg['Servers'][$i]['pmadb']         = '';                 // Database used for Relation, Bookmark and PDF Features
                                                             // (see scripts/create_tables.sql)
                                                             //   - leave blank for no support
                                                             //     DEFAULT: 'phpmyadmin'
  $cfg['Servers'][$i]['bookmarktable'] = '';                 // Bookmark table
                                                             //   - leave blank for no bookmark support
                                                             //     DEFAULT: 'pma_bookmark'
  $cfg['Servers'][$i]['relation']      = '';                 // table to describe the relation between links (see doc)
                                                             //   - leave blank for no relation-links support
                                                             //     DEFAULT: 'pma_relation'
  $cfg['Servers'][$i]['table_info']    = '';                 // table to describe the display fields
                                                             //   - leave blank for no display fields support
                                                             //     DEFAULT: 'pma_table_info'
  $cfg['Servers'][$i]['table_coords']  = '';                 // table to describe the tables position for the PDF schema
                                                             //   - leave blank for no PDF schema support
                                                             //     DEFAULT: 'pma_table_coords'
  $cfg['Servers'][$i]['pdf_pages']     = '';                 // table to describe pages of relationpdf
                                                             //   - leave blank if you don't want to use this
                                                             //     DEFAULT: 'pma_pdf_pages'
  $cfg['Servers'][$i]['column_info']   = '';                 // table to store column information
                                                             //   - leave blank for no column comments/mime types
                                                             //     DEFAULT: 'pma_column_info'
  $cfg['Servers'][$i]['history']       = '';                 // table to store SQL history
                                                             //   - leave blank for no SQL query history
                                                             //     DEFAULT: 'pma_history'
  $cfg['Servers'][$i]['verbose_check'] = TRUE;               // set to FALSE if you know that your pma_* tables
                                                             // are up to date. This prevents compatibility
                                                             // checks and thereby increases performance.
  $cfg['Servers'][$i]['AllowRoot']     = TRUE;               // whether to allow root login
  $cfg['Servers'][$i]['AllowDeny']['order']                  // Host authentication order, leave blank to not use
                                       = '';
  $cfg['Servers'][$i]['AllowDeny']['rules']                  // Host authentication rules, leave blank for defaults
                                       = array();

Please let me know if you need anymore info.

-- Malcolm