Using PHPMyAdmin to administer Amazon RDS

问题

I can't get PHPMyAdmin to connect to my Amazon RDS instance. I've granted permissions for my IP address to the DB Security Group which has access to this database I'm trying to access. Here's what I'm working with...

    $cfg['Servers'][$i]['pmadb'] = $dbname;
    $cfg['Servers'][$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]['designer_coords'] = 'pma_designer_coords';

    /* Uncomment the following to enable logging in to passwordless accounts,
     * after taking note of the associated security risks. */
    // $cfg['Servers'][$i]['AllowNoPassword'] = TRUE;

    /* Advance to next server for rest of config */
    $i++;
}

    $cfg['Servers'][$i]['auth_type'] = 'http';  //is this correct?
    $cfg['Servers'][$i]['user'] = 'MASTER-USER';
    $cfg['Servers'][$i]['password'] = 'MASTER-USER-PASSWORD';
    $cfg['Servers'][$i]['hide_db'] = '(mysql|information_schema|phpmyadmin)';
    /* Server parameters */
    $cfg['Servers'][$i]['host'] = 'MY-DB.us-east-1.rds.amazonaws.com';
    $cfg['Servers'][$i]['connection_type'] = 'socket';
    $cfg['Servers'][$i]['port'] = PORT;

I'm not sure if my configuration is correct.

I'm getting this error:

#2013 - Lost connection to MySQL server at 'reading initial communication packet', system error: 110

Does anyone have any advice?

回答1:

I found most of the answers in this question lack explanation. To add RDS server in phpMyAdmin installed in EC2, you can first login to your EC2 via SSH. Then, issue the following command to edit the Config file of phpMyAdmin (use vi, nano or any other favorite text editing tool):

sudo vi /etc/phpMyAdmin/config.inc.php # Amazon Linux
sudo vi /etc/phpmyadmin/config.inc.php # Ubuntu Linux

Find the following lines in config.inc.php:

/*
 * End of servers configuration
 */

Append the following lines above the "End of servers configuration" line:

$i++;
$cfg['Servers'][$i]['host'] = 'xxxxx.xxxxxxxxxx.us-east-1.rds.amazonaws.com';
$cfg['Servers'][$i]['port'] = '3306';
$cfg['Servers'][$i]['verbose'] = 'YOUR_SERVER_NAME';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['extension'] = 'mysql';
$cfg['Servers'][$i]['compress'] = TRUE;

which YOUR_SERVER_NAME is the name being displayed in phpMyAdmin login page's selection box. If you remove this line, the whole RDS hostname will be displayed in the selection box (which is too long, obviously). Remember to save the config.inc.php.

There are several other config settings, which you can find the details in the official documentation.

Note: The other answer suggests auto login with preset username & password in Config file:

$cfg['Servers'][$i]['auth_type']     = 'config';
$cfg['Servers'][$i]['user']          = '__FILL_IN_DETAILS__';
$cfg['Servers'][$i]['password']      = '__FILL_IN_DETAILS__';

which is extremely dangerous if your phpMyAdmin is exposed to public. You don't want to show your database schema to everyone, do you? If you really want to use automatic login, make sure your phpMyAdmin is accessible via specific IPs only.

回答2:

In Debian Lenny using the phpmyadmin from the repo add this to /etc/phpmyadmin/config.inc.php :

$i++;
$cfg['Servers'][$i]['host'] = 'xxxxx.xxxxxxxxxx.us-east-1.rds.amazonaws.com';
$cfg['Servers'][$i]['port'] = '3306';
$cfg['Servers'][$i]['socket'] = '';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['extension'] = 'mysql';
$cfg['Servers'][$i]['compress'] = TRUE;
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['user'] = 'xxxxxxxxxxxx';
$cfg['Servers'][$i]['password'] = 'xxxxxxxxxxxxxxxxxx';

回答3:

You need to add the RDS instance as an additional server listed on PHPMyAdmin while granting the host PHPMyAdmin access to your RDS instance.

More details from this blog post on How to remotely manage an Amazon RDS instance with PHPMyAdmin:

The one thing I had trouble with was the DB Security Group setup. When you go to add access for an CIDR/IP it provides a recommended value. It took some messing around to determine that this default value isn’t actually what needed to be there. If you’re not able to connect to your instance when it’s all said and done, be sure to double check this value. The IP they provided did not match the IP address that was provided to us by our ISP. Once you’ve created your DB Instance and setup the security group you’re good to go.

I’m going to assume you’ve already got PHPMyAdmin up and running. What you need to do is modify config.inc.php to recognize the new server.

回答4:

Try to connect from the mysql command line (http://dev.mysql.com/doc/refman/5.1/en/mysql.html) and see what's this utility returns you. I found it's easier to debug that way.

mysql -hMY-DB.us-east-1.rds.amazonaws.com -uMASTER-USER -pPASSWORD

If that's doesn't work, it means your amazon RDS security aren't configured correctly. (which is the common problem).

回答5:

sudo nano /etc/phpmyadmin/config.inc.php

--ADD LINES BELOW THE PMA CONFIG AREA AND FILL IN DETAILS--
$i++;
$cfg['Servers'][$i]['host']          = '__FILL_IN_DETAILS__';
$cfg['Servers'][$i]['port']          = '3306';
$cfg['Servers'][$i]['socket']        = '';
$cfg['Servers'][$i]['connect_type']  = 'tcp';
$cfg['Servers'][$i]['extension']     = 'mysql';
$cfg['Servers'][$i]['compress']      = FALSE;
$cfg['Servers'][$i]['auth_type']     = 'config';
$cfg['Servers'][$i]['user']          = '__FILL_IN_DETAILS__';
$cfg['Servers'][$i]['password']      = '__FILL_IN_DETAILS__';

Save and Exit. Refresh your phpmyadmin page and you'll see a dropdown with the server that you just added

Source: https://github.com/andrewpuch/phpmyadmin_connect_to_rds, https://www.youtube.com/watch?v=Bz-4wTGD2_Q

回答6:

I had the same problem and nothing of the above solved it.

As it turned out the thing was in "Publicly Accessible" option of the RDS instance. When you create your instance this option is "no" by default and there is no place you can change it.

However, after creating the RDS instance you can make its snapshot, then delete the instance and then launch the snapshot. In launch options just set "Publicly Accessible" to "yes" and your phpMyAdmin will finally see you RDS MySql server.

Beware that DNS of the original RDS instance and the snaphot are different so you would have to change your 'host' in config.inc.php

Cheers :)

回答7:

First try this :

mysql -h xxxxx.xxxxxxx.xx-xx-2.rds.amazonaws.com -u root -p // Your RDS server.

If it waits and doesn't prompt for the password then you would need to check security group and add 3306 outbound to your Web Tier.

回答8:

If you can connect from the cli using mysql -h ENDPOINT -u USERNAME -p but not from PHPMyAdmin or your own web scripts, don't forget to tell selinux to let your web server talk to the network :)

sudo setsebool -P httpd_can_network_connect=1

回答9:

I use ubuntu shell to access Amazon RDS. first of all go to ubuntu root

sudo -i

to do this use amazon RDS end user URL

mysql -h gelastik.cqtbtepzqfhu.us-west-2.rds.amazonaws.com -u root -p

来源：https://stackoverflow.com/questions/4402482/using-phpmyadmin-to-administer-amazon-rds

标签

phpMyAdmin

amazon-rds