Installation¶
phpMyAdmin does not apply any special security methods to the MySQL database server. It is still the system administrator’s job to grant permissions on the MySQL databases properly. phpMyAdmin’s Users page can be used for this.
Warning
Mac users should note that if you are on a version before
Mac OS X, StuffIt unstuffs with Mac formats. So you’ll have
to resave as in BBEdit to Unix style ALL phpMyAdmin scripts before
uploading them to your server, as PHP seems not to like Mac-style
end of lines character (“\r
”).
Linux distributions¶
phpMyAdmin is included in most Linux distributions. It is recommended to use distribution packages when possible - they usually provide integration to your distribution and you will automatically get security updates from your distribution.
Debian¶
Debian’s package repositories include a phpMyAdmin package, but be aware that
the configuration file is maintained in /etc/phpmyadmin
and may differ in
some ways from the official phpMyAdmin documentation. Specifically it does:
- Configuration of web server (works for Apache and lighttpd).
- Creating of phpMyAdmin configuration storage using dbconfig-common.
- Securing setup script, see Setup script on Debian, Ubuntu and derivatives.
See also
More information can be found in README.Debian
(it is installed as /usr/share/doc/phmyadmin/README.Debian
with the package).
OpenSUSE¶
OpenSUSE already comes with phpMyAdmin package, just install packages from the openSUSE Build Service.
Ubuntu¶
Ubuntu ships phpMyAdmin package, however if you want to use recent version, you can use packages from phpMyAdmin PPA.
See also
The packages are same as in Debian please check the documentation there for more details.
Gentoo¶
Gentoo ships the phpMyAdmin package, both in a near stock configuration as well
as in a webapp-config
configuration. Use emerge dev-db/phpmyadmin
to
install.
Mandriva¶
Mandriva ships the phpMyAdmin package in their contrib
branch and can be
installed via the usual Control Center.
Fedora¶
Fedora ships the phpMyAdmin package, but be aware that the configuration file
is maintained in /etc/phpMyAdmin/
and may differ in some ways from the
official phpMyAdmin documentation.
Red Hat Enterprise Linux¶
Red Hat Enterprise Linux itself and thus derivatives like CentOS don’t
ship phpMyAdmin, but the Fedora-driven repository
Extra Packages for Enterprise Linux (EPEL)
is doing so, if it’s
enabled.
But be aware that the configuration file is maintained in
/etc/phpMyAdmin/
and may differ in some ways from the
official phpMyAdmin documentation.
Installing on Windows¶
The easiest way to get phpMyAdmin on Windows is using third party products which include phpMyAdmin together with a database and web server such as XAMPP.
You can find more of such options at Wikipedia.
Installing from Git¶
You can clone current phpMyAdmin source from
https://github.com/phpmyadmin/phpmyadmin.git
:
git clone https://github.com/phpmyadmin/phpmyadmin.git
Additionally you need to install dependencies using the Composer tool:
composer update
If you do not intend to develop, you can skip the installation of developer tools by invoking:
composer update --no-dev
Installing using Composer¶
You can install phpMyAdmin using the Composer tool, since 4.7.0 the releases are automatically mirrored to the default Packagist repository.
Note
The content of the Composer repository is automatically generated separately from the releases, so the content doesn’t have to be 100% same as when you download the tarball. There should be no functional differences though.
To install phpMyAdmin simply run:
composer create-project phpmyadmin/phpmyadmin
Alternatively you can use our own composer repository, which contains the release tarballs and is available at <https://www.phpmyadmin.net/packages.json>:
composer create-project phpmyadmin/phpmyadmin --repository-url=https://www.phpmyadmin.net/packages.json --no-dev
Installing using Docker¶
phpMyAdmin comes with a Docker image, which you can easily deploy. You can download it using:
docker pull phpmyadmin/phpmyadmin
The phpMyAdmin server will listen on port 80. It supports several ways of
configuring the link to the database server, either by Docker’s link feature
by linking your database container to db
for phpMyAdmin (by specifying
--link your_db_host:db
) or by environment variables (in this case it’s up
to you to set up networking in Docker to allow the phpMyAdmin container to access
the database container over network).
Docker environment variables¶
You can configure several phpMyAdmin features using environment variables:
-
PMA_ARBITRARY
¶ Allows you to enter a database server hostname on login form.
See also
-
PMA_HOST
¶ Host name or IP address of the database server to use.
See also
-
PMA_HOSTS
¶ Comma-separated host names or IP addresses of the database servers to use.
Note
Used only if
PMA_HOST
is empty.
-
PMA_VERBOSE
¶ Verbose name of the database server.
See also
-
PMA_VERBOSES
¶ Comma-separated verbose name of the database servers.
Note
Used only if
PMA_VERBOSE
is empty.
-
PMA_USER
¶ User name to use for Config authentication mode.
-
PMA_PASSWORD
¶ Password to use for Config authentication mode.
-
PMA_PORT
¶ Port of the database server to use.
-
PMA_PORTS
¶ Comma-separated ports of the database server to use.
Note
Used only if
PMA_PORT
is empty.
-
PMA_ABSOLUTE_URI
¶ The fully-qualified path (
https://pma.example.net/
) where the reverse proxy makes phpMyAdmin available.See also
By default, Cookie authentication mode is used, but if PMA_USER
and
PMA_PASSWORD
are set, it is switched to Config authentication mode.
Note
The credentials you need to log in are stored in the MySQL server, in case
of Docker image there are various ways to set it (for example
MYSQL_ROOT_PASSWORD
when starting the MySQL container). Please check
documentation for MariaDB container
or MySQL container.
Customizing configuration¶
Additionally configuration can be tweaked by /etc/phpmyadmin/config.user.inc.php
. If
this file exists, it will be loaded after configuration is generated from above
environment variables, so you can override any configuration variable. This
configuration can be added as a volume when invoking docker using
-v /some/local/directory/config.user.inc.php:/etc/phpmyadmin/config.user.inc.php parameters.
Note that the supplied configuration file is applied after Docker environment variables, but you can override any of the values.
For example to change default behaviour of CSV export you can use following configuration file:
<?php
$cfg['Export']['csv_columns'] = true;
See also
See Configuration for detailed description of configuration options.
Docker Volumes¶
You can use following volumes to customize image behavior:
/etc/phpmyadmin/config.user.inc.php
Can be used for additional settings, see previous chapter for more details.
/sessions/
Directory where PHP sessions are stored. You might want to share this for example when using Signon authentication mode.
Docker Examples¶
To connect phpMyAdmin to a given server use:
docker run --name myadmin -d -e PMA_HOST=dbhost -p 8080:80 phpmyadmin/phpmyadmin
To connect phpMyAdmin to more servers use:
docker run --name myadmin -d -e PMA_HOSTS=dbhost1,dbhost2,dbhost3 -p 8080:80 phpmyadmin/phpmyadmin
To use arbitrary server option:
docker run --name myadmin -d --link mysql_db_server:db -p 8080:80 -e PMA_ARBITRARY=1 phpmyadmin/phpmyadmin
You can also link the database container using Docker:
docker run --name phpmyadmin -d --link mysql_db_server:db -p 8080:80 phpmyadmin/phpmyadmin
Running with additional configuration:
docker run --name phpmyadmin -d --link mysql_db_server:db -p 8080:80 -v /some/local/directory/config.user.inc.php:/etc/phpmyadmin/config.user.inc.php phpmyadmin/phpmyadmin
Using docker-compose¶
Alternatively you can also use docker-compose with the docker-compose.yml from <https://github.com/phpmyadmin/docker>. This will run phpMyAdmin with an arbitrary server - allowing you to specify MySQL/MariaDB server on login page.
docker-compose up -d
Customizing configuration file using docker-compose¶
You can use an external file to customize phpMyAdmin configuration and pass it using the volumes directive:
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: phpmyadmin
environment:
- PMA_ARBITRARY=1
restart: always
ports:
- 8080:80
volumes:
- /sessions
- ~/docker/phpmyadmin/config.user.inc.php:/etc/phpmyadmin/config.user.inc.php
See also
Running behind haproxy in a subdirectory¶
When you want to expose phpMyAdmin running in a Docker container in a subdirectory, you need to rewrite the request path in the server proxying the requests. For example using haproxy it can be done as:
frontend http
bind *:80
option forwardfor
option http-server-close
### NETWORK restriction
acl LOCALNET src 10.0.0.0/8 192.168.0.0/16 172.16.0.0/12
# /phpmyadmin
acl phpmyadmin path_dir /phpmyadmin
use_backend phpmyadmin if phpmyadmin LOCALNET
backend phpmyadmin
mode http
reqirep ^(GET|POST|HEAD)\ /phpmyadmin/(.*) \1\ /\2
# phpMyAdmin container IP
server localhost 172.30.21.21:80
You then should specify PMA_ABSOLUTE_URI
in the docker-compose
configuration:
version: '2'
services:
phpmyadmin:
restart: always
image: phpmyadmin/phpmyadmin
container_name: phpmyadmin
hostname: phpmyadmin
domainname: example.com
ports:
- 8000:80
environment:
- PMA_HOSTS=172.26.36.7,172.26.36.8,172.26.36.9,172.26.36.10
- PMA_VERBOSES=production-db1,production-db2,dev-db1,dev-db2
- PMA_USER=root
- PMA_PASSWORD=
- PMA_ABSOLUTE_URI=http://example.com/phpmyadmin/
Quick Install¶
- Choose an appropriate distribution kit from the phpmyadmin.net
Downloads page. Some kits contain only the English messages, others
contain all languages. We’ll assume you chose a kit whose name
looks like
phpMyAdmin-x.x.x -all-languages.tar.gz
. - Ensure you have downloaded a genuine archive, see Verifying phpMyAdmin releases.
- Untar or unzip the distribution (be sure to unzip the subdirectories):
tar -xzvf phpMyAdmin_x.x.x-all-languages.tar.gz
in your webserver’s document root. If you don’t have direct access to your document root, put the files in a directory on your local machine, and, after step 4, transfer the directory on your web server using, for example, ftp. - Ensure that all the scripts have the appropriate owner (if PHP is running in safe mode, having some scripts with an owner different from the owner of other scripts will be a problem). See 4.2 What’s the preferred way of making phpMyAdmin secure against evil access? and 1.26 I just installed phpMyAdmin in my document root of IIS but I get the error “No input file specified” when trying to run phpMyAdmin. for suggestions.
- Now you must configure your installation. There are two methods that
can be used. Traditionally, users have hand-edited a copy of
config.inc.php
, but now a wizard-style setup script is provided for those who prefer a graphical installation. Creating aconfig.inc.php
is still a quick way to get started and needed for some advanced features.
Manually creating the file¶
To manually create the file, simply use your text editor to create the
file config.inc.php
(you can copy config.sample.inc.php
to get
a minimal configuration file) in the main (top-level) phpMyAdmin
directory (the one that contains index.php
). phpMyAdmin first
loads libraries/config.default.php
and then overrides those values
with anything found in config.inc.php
. If the default value is
okay for a particular setting, there is no need to include it in
config.inc.php
. You’ll probably need only a few directives to get going; a
simple configuration may look like this:
<?php
// use here a value of your choice at least 32 chars long
$cfg['blowfish_secret'] = '1{dd0`<Q),5XP_:R9UK%%8\"EEcyH#{o';
$i=0;
$i++;
$cfg['Servers'][$i]['auth_type'] = 'cookie';
// if you insist on "root" having no password:
// $cfg['Servers'][$i]['AllowNoPassword'] = true; `
?>
Or, if you prefer to not be prompted every time you log in:
<?php
$i=0;
$i++;
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = 'cbb74bc'; // use here your password
$cfg['Servers'][$i]['auth_type'] = 'config';
?>
Warning
Storing passwords in the configuration is insecure as anybody can then manipulate your database.
For a full explanation of possible configuration values, see the Configuration of this document.
Using Setup script¶
Instead of manually editing config.inc.php
, you can use phpMyAdmin’s
setup feature. The file can be generated using the setup and you can download it
for upload to the server.
Next, open your browser and visit the location where you installed phpMyAdmin,
with the /setup
suffix. The changes are not saved to the server, you need to
use the Download button to save them to your computer and then upload
to the server.
Now the file is ready to be used. You can choose to review or edit the file with your favorite editor, if you prefer to set some advanced options which the setup script does not provide.
- If you are using the
auth_type
“config”, it is suggested that you protect the phpMyAdmin installation directory because using config does not require a user to enter a password to access the phpMyAdmin installation. Use of an alternate authentication method is recommended, for example with HTTP–AUTH in a .htaccess file or switch to usingauth_type
cookie or http. See the ISPs, multi-user installations for additional information, especially 4.4 phpMyAdmin always gives “Access denied” when using HTTP authentication.. - Open the main phpMyAdmin directory in your browser. phpMyAdmin should now display a welcome screen and your databases, or a login dialog if using HTTP or cookie authentication mode.
Setup script on Debian, Ubuntu and derivatives¶
Debian and Ubuntu have changed way how setup is enabled and disabled, in a way that single command has to be executed for either of these.
To allow editing configuration invoke:
/usr/sbin/pma-configure
To block editing configuration invoke:
/usr/sbin/pma-secure
Setup script on openSUSE¶
Some openSUSE releases do not include setup script in the package. In case you want to generate configuration on these you can either download original package from <https://www.phpmyadmin.net/> or use setup script on our demo server: <https://demo.phpmyadmin.net/STABLE/setup/>.
Verifying phpMyAdmin releases¶
Since July 2015 all phpMyAdmin releases are cryptographically signed by the releasing developer, who through January 2016 was Marc Delisle. His key id is 0xFEFC65D181AF644A, his PGP fingerprint is:
436F F188 4B1A 0C3F DCBF 0D79 FEFC 65D1 81AF 644A
and you can get more identification information from <https://keybase.io/lem9>.
Beginning in January 2016, the release manager is Isaac Bennetch. His key id is 0xCE752F178259BD92, and his PGP fingerprint is:
3D06 A59E CE73 0EB7 1B51 1C17 CE75 2F17 8259 BD92
and you can get more identification information from <https://keybase.io/ibennetch>.
Some additional downloads (for example themes) might be signed by Michal Čihař. His key id is 0x9C27B31342B7511D, and his PGP fingerprint is:
63CB 1DF1 EF12 CF2A C0EE 5A32 9C27 B313 42B7 511D
and you can get more identification information from <https://keybase.io/nijel>.
You should verify that the signature matches the archive you have downloaded. This way you can be sure that you are using the same code that was released. You should also verify the date of the signature to make sure that you downloaded the latest version.
Each archive is accompanied with .asc
files which contains the PGP signature
for it. Once you have both of them in the same folder, you can verify the signature:
$ gpg --verify phpMyAdmin-4.5.4.1-all-languages.zip.asc
gpg: Signature made Fri 29 Jan 2016 08:59:37 AM EST using RSA key ID 8259BD92
gpg: Can't check signature: public key not found
As you can see gpg complains that it does not know the public key. At this point you should do one of the following steps:
- Download the keyring from our download server, then import it with:
$ gpg --import phpmyadmin.keyring
- Download and import the key from one of the key servers:
$ gpg --keyserver hkp://pgp.mit.edu --recv-keys 3D06A59ECE730EB71B511C17CE752F178259BD92
gpg: requesting key 8259BD92 from hkp server pgp.mit.edu
gpg: key 8259BD92: public key "Isaac Bennetch <bennetch@gmail.com>" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
This will improve the situation a bit - at this point you can verify that the signature from the given key is correct but you still can not trust the name used in the key:
$ gpg --verify phpMyAdmin-4.5.4.1-all-languages.zip.asc
gpg: Signature made Fri 29 Jan 2016 08:59:37 AM EST using RSA key ID 8259BD92
gpg: Good signature from "Isaac Bennetch <bennetch@gmail.com>"
gpg: aka "Isaac Bennetch <isaac@bennetch.org>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: 3D06 A59E CE73 0EB7 1B51 1C17 CE75 2F17 8259 BD92
The problem here is that anybody could issue the key with this name. You need to ensure that the key is actually owned by the mentioned person. The GNU Privacy Handbook covers this topic in the chapter Validating other keys on your public keyring. The most reliable method is to meet the developer in person and exchange key fingerprints, however you can also rely on the web of trust. This way you can trust the key transitively though signatures of others, who have met the developer in person. For example you can see how Isaac’s key links to Linus’s key.
Once the key is trusted, the warning will not occur:
$ gpg --verify phpMyAdmin-4.5.4.1-all-languages.zip.asc
gpg: Signature made Fri 29 Jan 2016 08:59:37 AM EST using RSA key ID 8259BD92
gpg: Good signature from "Isaac Bennetch <bennetch@gmail.com>" [full]
Should the signature be invalid (the archive has been changed), you would get a clear error regardless of the fact that the key is trusted or not:
$ gpg --verify phpMyAdmin-4.5.4.1-all-languages.zip.asc
gpg: Signature made Fri 29 Jan 2016 08:59:37 AM EST using RSA key ID 8259BD92
gpg: BAD signature from "Isaac Bennetch <bennetch@gmail.com>" [unknown]
phpMyAdmin configuration storage¶
Changed in version 3.4.0: Prior to phpMyAdmin 3.4.0 this was called Linked Tables Infrastructure, but the name was changed due to extended scope of the storage.
For a whole set of additional features (Bookmarks, comments, SQL-history, tracking mechanism, PDF-generation, Transformations, Relations etc.) you need to create a set of special tables. Those tables can be located in your own database, or in a central database for a multi-user installation (this database would then be accessed by the controluser, so no other user should have rights to it).
Zero configuration¶
In many cases, this database structure can be automatically created and
configured. This is called “Zero Configuration” mode and can be particularly
useful in shared hosting situations. “Zeroconf” mode is on by default, to
disable set $cfg['ZeroConf']
to false.
The following three scenarios are covered by the Zero Configuration mode:
- When entering a database where the configuration storage tables are not present, phpMyAdmin offers to create them from the Operations tab.
- When entering a database where the tables do already exist, the software
automatically detects this and begins using them. This is the most common
situation; after the tables are initially created automatically they are
continually used without disturbing the user; this is also most useful on
shared hosting where the user is not able to edit
config.inc.php
and usually the user only has access to one database. - When having access to multiple databases, if the user first enters the database containing the configuration storage tables then switches to another database, phpMyAdmin continues to use the tables from the first database; the user is not prompted to create more tables in the new database.
Manual configuration¶
Please look at your ./sql/
directory, where you should find a
file called create_tables.sql. (If you are using a Windows server,
pay special attention to 1.23 I’m running MySQL on a Win32 machine. Each time I create a new table the table and column names are changed to lowercase!).
If you already had this infrastructure and:
- upgraded to MySQL 4.1.2 or newer, please use
sql/upgrade_tables_mysql_4_1_2+.sql
. - upgraded to phpMyAdmin 4.3.0 or newer from 2.5.0 or newer (<= 4.2.x),
please use
sql/upgrade_column_info_4_3_0+.sql
. - upgraded to phpMyAdmin 4.7.0 or newer from 4.3.0 or newer,
please use
sql/upgrade_tables_4_7_0+.sql
.
and then create new tables by importing sql/create_tables.sql
.
You can use your phpMyAdmin to create the tables for you. Please be aware that you may need special (administrator) privileges to create the database and tables, and that the script may need some tuning, depending on the database name.
After having imported the sql/create_tables.sql
file, you
should specify the table names in your config.inc.php
file. The
directives used for that can be found in the Configuration.
You will also need to have a controluser
($cfg['Servers'][$i]['controluser']
and
$cfg['Servers'][$i]['controlpass']
settings)
with the proper rights to those tables. For example you can create it
using following statement:
GRANT SELECT, INSERT, UPDATE, DELETE ON <pma_db>.* TO 'pma'@'localhost' IDENTIFIED BY 'pmapass';
Upgrading from an older version¶
Warning
Never extract the new version over an existing installation of phpMyAdmin, always first remove the old files keeping just the configuration.
This way you will not leave old no longer working code in the directory, which can have severe security implications or can cause various breakages.
Simply copy config.inc.php
from your previous installation into
the newly unpacked one. Configuration files from old versions may
require some tweaking as some options have been changed or removed.
For compatibility with PHP 5.3 and later, remove a
set_magic_quotes_runtime(0);
statement that you might find near
the end of your configuration file.
You should not copy libraries/config.default.php
over
config.inc.php
because the default configuration file is version-
specific.
The complete upgrade can be performed in few simple steps:
- Download the latest phpMyAdmin version from <https://www.phpmyadmin.net/downloads/>.
- Rename existing phpMyAdmin folder (for example to
phpmyadmin-old
). - Unpack freshly donwloaded phpMyAdmin to desired location (for example
phpmyadmin
). - Copy
config.inc.php`
from old location (phpmyadmin-old
) to new one (phpmyadmin
). - Test that everything works properly.
- Remove backup of previous version (
phpmyadmin-old
).
If you have upgraded your MySQL server from a version previous to 4.1.2 to
version 5.x or newer and if you use the phpMyAdmin configuration storage, you
should run the SQL script found in
sql/upgrade_tables_mysql_4_1_2+.sql
.
If you have upgraded your phpMyAdmin to 4.3.0 or newer from 2.5.0 or
newer (<= 4.2.x) and if you use the phpMyAdmin configuration storage, you
should run the SQL script found in
sql/upgrade_column_info_4_3_0+.sql
.
Do not forget to clear the browser cache and to empty the old session by logging out and logging in again.
Using authentication modes¶
HTTP and cookie authentication modes are recommended in a multi-user environment where you want to give users access to their own database and don’t want them to play around with others. Nevertheless be aware that MS Internet Explorer seems to be really buggy about cookies, at least till version 6. Even in a single-user environment, you might prefer to use HTTP or cookie mode so that your user/password pair are not in clear in the configuration file.
HTTP and cookie authentication
modes are more secure: the MySQL login information does not need to be
set in the phpMyAdmin configuration file (except possibly for the
$cfg['Servers'][$i]['controluser']
).
However, keep in mind that the password travels in plain text, unless
you are using the HTTPS protocol. In cookie mode, the password is
stored, encrypted with the AES algorithm, in a temporary cookie.
Then each of the true users should be granted a set of privileges on a set of particular databases. Normally you shouldn’t give global privileges to an ordinary user, unless you understand the impact of those privileges (for example, you are creating a superuser). For example, to grant the user real_user with all privileges on the database user_base:
GRANT ALL PRIVILEGES ON user_base.* TO 'real_user'@localhost IDENTIFIED BY 'real_password';
What the user may now do is controlled entirely by the MySQL user management
system. With HTTP or cookie authentication mode, you don’t need to fill the
user/password fields inside the $cfg['Servers']
.
See also
1.32 Can I use HTTP authentication with IIS?, 1.35 Can I use HTTP authentication with Apache CGI?, 4.1 I’m an ISP. Can I setup one central copy of phpMyAdmin or do I need to install it for each customer?, 4.2 What’s the preferred way of making phpMyAdmin secure against evil access?, 4.3 I get errors about not being able to include a file in /lang or in /libraries.
HTTP authentication mode¶
Uses HTTP Basic authentication method and allows you to log in as any valid MySQL user.
Is supported with most PHP configurations. For IIS (ISAPI) support using CGI PHP see 1.32 Can I use HTTP authentication with IIS?, for using with Apache CGI see 1.35 Can I use HTTP authentication with Apache CGI?.
When PHP is running under Apache’s mod_proxy_fcgi (e.g. with PHP-FPM),
Authorization
headers are not passed to the underlying FCGI application, such that your credentials will not reach the application. In this case, you can add the following configuration directive:SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
See also 4.4 phpMyAdmin always gives “Access denied” when using HTTP authentication. about not using the .htaccess mechanism along with ‘HTTP‘ authentication mode.
Note
There is no way to do proper logout in HTTP authentication, most browsers will remember credentials until there is no different successful authentication. Because of this this method has limitation that you can not login with same user after logout.
Cookie authentication mode¶
- Username and password are stored in cookies during the session and password is deleted when it ends.
- With this mode, the user can truly log out of phpMyAdmin and log back in with the same username (this is not possible with HTTP authentication mode).
- If you want to allow users to enter any hostname to connect (rather than only
servers that are configured in
config.inc.php
), see the$cfg['AllowArbitraryServer']
directive. - As mentioned in the Requirements section, having the
openssl
extension will speed up access considerably, but is not required.
Signon authentication mode¶
- This mode is a convenient way of using credentials from another application to authenticate to phpMyAdmin to implement single signon solution.
- The other application has to store login information into session
data (see
$cfg['Servers'][$i]['SignonSession']
and$cfg['Servers'][$i]['SignonCookieParams']
) or you need to implement script to return the credentials (see$cfg['Servers'][$i]['SignonScript']
). - When no credentials are available, the user is being redirected to
$cfg['Servers'][$i]['SignonURL']
, where you should handle the login process.
The very basic example of saving credentials in a session is available as
examples/signon.php
:
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Single signon for phpMyAdmin
*
* This is just example how to use session based single signon with
* phpMyAdmin, it is not intended to be perfect code and look, only
* shows how you can integrate this functionality in your application.
*
* @package PhpMyAdmin
* @subpackage Example
*/
/* Change this to true if using phpMyAdmin over https */
$secure_cookie = false;
/* Need to have cookie visible from parent directory */
session_set_cookie_params(0, '/', '', $secure_cookie, true);
/* Create signon session */
$session_name = 'SignonSession';
session_name($session_name);
// Uncomment and change the following line to match your $cfg['SessionSavePath']
//session_save_path('/foobar');
@session_start();
/* Was data posted? */
if (isset($_POST['user'])) {
/* Store there credentials */
$_SESSION['PMA_single_signon_user'] = $_POST['user'];
$_SESSION['PMA_single_signon_password'] = $_POST['password'];
$_SESSION['PMA_single_signon_host'] = $_POST['host'];
$_SESSION['PMA_single_signon_port'] = $_POST['port'];
/* Update another field of server configuration */
$_SESSION['PMA_single_signon_cfgupdate'] = array('verbose' => 'Signon test');
$id = session_id();
/* Close that session */
@session_write_close();
/* Redirect to phpMyAdmin (should use absolute URL here!) */
header('Location: ../index.php');
} else {
/* Show simple form */
header('Content-Type: text/html; charset=utf-8');
echo '<?xml version="1.0" encoding="utf-8"?>' , "\n";
?>
<!DOCTYPE HTML>
<html lang="en" dir="ltr">
<head>
<link rel="icon" href="../favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="../favicon.ico" type="image/x-icon" />
<meta charset="utf-8" />
<title>phpMyAdmin single signon example</title>
</head>
<body>
<?php
if (isset($_SESSION['PMA_single_signon_error_message'])) {
echo '<p class="error">';
echo $_SESSION['PMA_single_signon_error_message'];
echo '</p>';
}
?>
<form action="signon.php" method="post">
Username: <input type="text" name="user" /><br />
Password: <input type="password" name="password" /><br />
Host: (will use the one from config.inc.php by default)
<input type="text" name="host" /><br />
Port: (will use the one from config.inc.php by default)
<input type="text" name="port" /><br />
<input type="submit" />
</form>
</body>
</html>
<?php
}
?>
Alternatively you can also use this way to integrate with OpenID as shown
in examples/openid.php
:
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Single signon for phpMyAdmin using OpenID
*
* This is just example how to use single signon with phpMyAdmin, it is
* not intended to be perfect code and look, only shows how you can
* integrate this functionality in your application.
*
* It uses OpenID pear package, see https://pear.php.net/package/OpenID
*
* User first authenticates using OpenID and based on content of $AUTH_MAP
* the login information is passed to phpMyAdmin in session data.
*
* @package PhpMyAdmin
* @subpackage Example
*/
if (false === @include_once 'OpenID/RelyingParty.php') {
exit;
}
/* Change this to true if using phpMyAdmin over https */
$secure_cookie = false;
/**
* Map of authenticated users to MySQL user/password pairs.
*/
$AUTH_MAP = array(
'https://launchpad.net/~username' => array(
'user' => 'root',
'password' => '',
),
);
/**
* Simple function to show HTML page with given content.
*
* @param string $contents Content to include in page
*
* @return void
*/
function Show_page($contents)
{
header('Content-Type: text/html; charset=utf-8');
echo '<?xml version="1.0" encoding="utf-8"?>' , "\n";
?>
<!DOCTYPE HTML>
<html lang="en" dir="ltr">
<head>
<link rel="icon" href="../favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="../favicon.ico" type="image/x-icon" />
<meta charset="utf-8" />
<title>phpMyAdmin OpenID signon example</title>
</head>
<body>
<?php
if (isset($_SESSION) && isset($_SESSION['PMA_single_signon_error_message'])) {
echo '<p class="error">' , $_SESSION['PMA_single_signon_message'] , '</p>';
unset($_SESSION['PMA_single_signon_message']);
}
echo $contents;
?>
</body>
</html>
<?php
}
function Die_error($e)
{
$contents = "<div class='relyingparty_results'>\n";
$contents .= "<pre>" . htmlspecialchars($e->getMessage()) . "</pre>\n";
$contents .= "</div class='relyingparty_results'>";
Show_page($contents);
exit;
}
/* Need to have cookie visible from parent directory */
session_set_cookie_params(0, '/', '', $secure_cookie, true);
/* Create signon session */
$session_name = 'SignonSession';
session_name($session_name);
@session_start();
// Determine realm and return_to
$base = 'http';
if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {
$base .= 's';
}
$base .= '://' . $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'];
$realm = $base . '/';
$returnTo = $base . dirname($_SERVER['PHP_SELF']);
if ($returnTo[strlen($returnTo) - 1] != '/') {
$returnTo .= '/';
}
$returnTo .= 'openid.php';
/* Display form */
if (!count($_GET) && !count($_POST) || isset($_GET['phpMyAdmin'])) {
/* Show simple form */
$content = '<form action="openid.php" method="post">
OpenID: <input type="text" name="identifier" /><br />
<input type="submit" name="start" />
</form>
</body>
</html>';
Show_page($content);
exit;
}
/* Grab identifier */
if (isset($_POST['identifier']) && is_string($_POST['identifier'])) {
$identifier = $_POST['identifier'];
} else if (isset($_SESSION['identifier']) && is_string($_SESSION['identifier'])) {
$identifier = $_SESSION['identifier'];
} else {
$identifier = null;
}
/* Create OpenID object */
try {
$o = new OpenID_RelyingParty($returnTo, $realm, $identifier);
} catch (Exception $e) {
Die_error($e);
}
/* Redirect to OpenID provider */
if (isset($_POST['start'])) {
try {
$authRequest = $o->prepare();
} catch (Exception $e) {
Die_error($e);
}
$url = $authRequest->getAuthorizeURL();
header("Location: $url");
exit;
} else {
/* Grab query string */
if (!count($_POST)) {
list(, $queryString) = explode('?', $_SERVER['REQUEST_URI']);
} else {
// I hate php sometimes
$queryString = file_get_contents('php://input');
}
/* Check reply */
try {
$message = new OpenID_Message($queryString, OpenID_Message::FORMAT_HTTP);
} catch (Exception $e) {
Die_error($e);
}
$id = $message->get('openid.claimed_id');
if (!empty($id) && isset($AUTH_MAP[$id])) {
$_SESSION['PMA_single_signon_user'] = $AUTH_MAP[$id]['user'];
$_SESSION['PMA_single_signon_password'] = $AUTH_MAP[$id]['password'];
session_write_close();
/* Redirect to phpMyAdmin (should use absolute URL here!) */
header('Location: ../index.php');
} else {
Show_page('<p>User not allowed!</p>');
exit;
}
}
If you intend to pass the credentials using some other means than, you have to
implement wrapper in PHP to get that data and set it to
$cfg['Servers'][$i]['SignonScript']
. There is very minimal example
in examples/signon-script.php
:
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Single signon for phpMyAdmin
*
* This is just example how to use script based single signon with
* phpMyAdmin, it is not intended to be perfect code and look, only
* shows how you can integrate this functionality in your application.
*
* @package PhpMyAdmin
* @subpackage Example
*/
/**
* This function returns username and password.
*
* It can optionally use configured username as parameter.
*
* @param string $user User name
*
* @return array
*/
function get_login_credentials($user)
{
/* Optionally we can use passed username */
if (!empty($user)) {
return array($user, 'password');
}
/* Here we would retrieve the credentials */
$credentials = array('root', '');
return $credentials;
}
Config authentication mode¶
- This mode is sometimes the less secure one because it requires you to fill the
$cfg['Servers'][$i]['user']
and$cfg['Servers'][$i]['password']
fields (and as a result, anyone who can read yourconfig.inc.php
can discover your username and password). - In the ISPs, multi-user installations section, there is an entry explaining how to protect your configuration file.
- For additional security in this mode, you may wish to consider the
Host authentication
$cfg['Servers'][$i]['AllowDeny']['order']
and$cfg['Servers'][$i]['AllowDeny']['rules']
configuration directives. - Unlike cookie and http, does not require a user to log in when first loading the phpMyAdmin site. This is by design but could allow any user to access your installation. Use of some restriction method is suggested, perhaps a .htaccess file with the HTTP-AUTH directive or disallowing incoming HTTP requests at one’s router or firewall will suffice (both of which are beyond the scope of this manual but easily searchable with Google).
Securing your phpMyAdmin installation¶
The phpMyAdmin team tries hard to make the application secure, however there are always ways to make your installation more secure:
Follow our Security announcements and upgrade phpMyAdmin whenever new vulnerability is published.
Serve phpMyAdmin on HTTPS only. Preferably, you should use HSTS as well, so that you’re protected from protocol downgrade attacks.
Ensure your PHP setup follows recommendations for production sites, for example display_errors should be disabled.
Remove the
test
directory from phpMyAdmin, unless you are developing and need test suite.Remove the
setup
directory from phpMyAdmin, you will probably not use it after the initial setup.Properly choose an authentication method - Cookie authentication mode is probably the best choice for shared hosting.
Deny access to auxiliary files in
./libraries/
or./templates/
subfolders in your webserver configuration. Such configuration prevents from possible path exposure and cross side scripting vulnerabilities that might happen to be found in that code. For the Apache webserver, this is often accomplished with a .htaccess file in those directories.It is generally a good idea to protect a public phpMyAdmin installation against access by robots as they usually can not do anything good there. You can do this using
robots.txt
file in root of your webserver or limit access by web server configuration, see 1.42 How can I prevent robots from accessing phpMyAdmin?.In case you don’t want all MySQL users to be able to access phpMyAdmin, you can use
$cfg['Servers'][$i]['AllowDeny']['rules']
to limit them or$cfg['Servers'][$i]['AllowRoot']
to deny root user access.Consider hiding phpMyAdmin behind an authentication proxy, so that users need to authenticate prior to providing MySQL credentials to phpMyAdmin. You can achieve this by configuring your web server to request HTTP authentication. For example in Apache this can be done with:
AuthType Basic AuthName "Restricted Access" AuthUserFile /usr/share/phpmyadmin/passwd Require valid-user
Once you have changed the configuration, you need to create a list of users which can authenticate. This can be done using the htpasswd utility:
htpasswd -c /usr/share/phpmyadmin/passwd username
If you are afraid of automated attacks, enabling Captcha by
$cfg['CaptchaLoginPublicKey']
and$cfg['CaptchaLoginPrivateKey']
might be an option.Failed login attemps are logged to syslog (if available). This can allow using a tool such as fail2ban to block brute-force attempts. Note that the log file used by syslog is not the same as the Apache error or access log files.
Known issues¶
Users with column-specific privileges are unable to “Browse”¶
If a user has only column-specific privileges on some (but not all) columns in a table, “Browse” will fail with an error message.
As a workaround, a bookmarked query with the same name as the table can be created, this will run when using the “Browse” link instead. Issue 11922.
Trouble logging back in after logging out using ‘http’ authentication¶
When using the ‘http’ auth_type
, it can be impossible to log back in (when the logout comes
manually or after a period of inactivity). Issue 11898.